出出道至今似乎可以看出刘亦菲是个不折不扣的蕾丝迷呢，白色的、黑色的蕾丝衫，穿出亭亭玉立的神仙姐姐范儿，近日，有记者抓拍到刘亦菲出现机场的画面，穿着黑色蕾丝衫，搭配是爱的牛仔裤，背一款拼色的lady dior包包还戴着一副彩框的chanel偏光墨镜，简单随意的打扮也时不时吸引旁人的目光。

刘亦菲背着布娃娃亮相机场

刘亦菲穿黑色蕾丝衣搭配lady dior包包度假

刘亦菲穿黑色蕾丝衣搭配lady dior包包度假

我们看过奢侈品达人们分享过许多如何分辨LV包真假的方法，但也经常有说法不一致的，所以看得越多就让人越是质疑，其实最好的辨别方法最好是在你身边就有一个LV包可以对比的情况下才更好。虽然LV包的材质与手工都是异曲同工，有许多相同与相似点，不过也会存在个性之处，比如设计细节，金属与皮料上刻字的大小比例，花纹的位置等细节，这次我们又来聊一聊关于metis lv邮差包的话题吧，这款邮差包真是拥有的粉丝太多了，小篇自己就收了一个，明星网红都是人手一款，价格相比香奈儿 YSL邮差包款式都要划算许多，不到10000的价格就可以拥有到，又是那么的经典 实用 好搭配衣服，包包里面还有多个隔层，难怪会被更多的女性定为必种的草，拥有的人多，粉丝群就比较宠大，关于如何辨别真假品质，是每个metis粉丝们最有兴趣的话题，分辨网红款metis lv邮差包真假 原来只需要看这五点，现在就与美丽包包来了解。

第一点看手柄，手柄能屈能伸，但把手柄按下去基本是平的，把包包里面垫的纸拿出来，会发现包包正面看上去有些塌陷，因为面料十分柔软

第二点看金属锁扣，闪亮黄铜金属扣，尖角形态锁扣设计是metis邮差包标志性亮点，显得尤为醒目吧，当然这种金属锁扣也有在其他LV包款中出现，但几乎都是信封口盖款式吧，注意看细节，金属上的logo图案刻字细节，是不是纤细匀称精致？LV包用到的独一无二激光刻字五金。

第三点看肩带挂件，注意米黄色牛皮与D形金属环的大小比例，很多高仿的比例要大许多呢，注意看黄色的缝线细节，头三针回线加固的。

第四点看Monogram面料是否够柔软

第五点看Monogram对花是否对称，色调是否有区别。以上是如何分辨网红款metis lv邮差包真假的方法与技巧，如果您对美丽包包名品网以上内容感兴趣，不凡添加我们V信一起交流吧。

The Full Metal 7 Gloves are motorcycle gloves created to guarantee maximum performance and protection. Made of durable goatskin leather, these gloves feature protective Pro-Tek titanium inserts on the knuckles and Kevlar inserts on palm, fingers and back, as well as reinforcement on the little finger and scaphoid.

The Full Metal 7 Gloves are designed to protect knuckles and the back of the hand, ensuring extremely high impact protection. They make sliding easier thanks to the titanium and offer an excellent level of comfort and mobility thanks to the co-injected elastic joint.

These professional gloves, worn by MotoGP™ champions, maximize comfort, lightness and riding sensitivity, allowing riders to fully focus on their performance. The pre-curved construction of the cuff and fingers, integrated stretch inserts on the back, fingers and base of the fourchettes, and the new knuckle contouring all guarantee high levels of comfort and ergonomics while also enhancing riding precision.

A perfect blend of iconic design and Dainese’s high technological standards, the Full Metal 7 Gloves embody the latest evolution of top-of-the-range racing gloves, with additional Level 2 certification. The Full Metal 7 Gloves’ construction ensures a perfect connection to Dainese’s racing suits.

Features:

• Adjustable cuff strap
• Elastic & high tenacity fabric fingers inserts
• Microelastic elasticated inserts
• Pre-curved fingers
• Tightening strap
• Aramid fiber stitching
• Drum-dyed goatskin leather super soft palm
• Goatskin Leather
• DCP system on little finger
• Ergonomic PU knuckles protection base
• One single leather panel to the side of the hand
• Pro-Hand
• Reinforced leather palm
• Titanium Pro-tek knuckles
• TPU sliders to protect the finger’s joints
• Ventilation provided with front and rear holes
• Aramid fiber jersey on back and palm
• Gloves certified to CE Cat. II – Pr-EN 13594 Standard lev. 2.

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在近期接受美国《人物》杂志专访时，NBA金州勇士队的篮球明星斯蒂芬-库里分享了队友克莱-汤普森离队后，自己和球队需要面对的挑战。

库里说道：“篮球不是生命的全部，事实上，我们球队已经拥有了足够长的夺冠窗口，当然人们都想尽可能延续这种状态。在克莱离队后，很多人认为我们无法跟上西部其他球队的步伐，我喜欢这样的论调。我现在只想快点开始训练营，然后率领球队击碎这些质疑，这让我很有动力。

很显然，在这次奥运会结束以后，我将努力将这种能量贯穿整个赛季。到了职业生涯的这个阶段，我需要继续展现出自己的优势，并且找到自己可以继续提升的方面。对我而言，除了积极的生活方式和及时有效的康复治疗以外，我会继续挖掘我在任何方面的天赋。”

此前，据NBA名记Woj报道，库里的经纪人杰夫-奥斯汀透露，36岁的库里和勇士达成1年6260万美元的顶薪提前续约合同。

Basic Info.

Model NO.
DB-01

Material
Ultra Plush Fabrics

Age Group
Adults

Feature
Anti-Pilling, Portable, Wearable

Type
Blended Blanket

Knitting Method
Machine Weaved

Pattern
Plain Color

Usage
Home, Hotel

Transport Package
Non-Woven Bag

Specification
Normal size and customized size

Trademark
DELO

Origin
Anhui China

HS Code
9404909000

Production Capacity
10000

Product Description

The use of additive manufacturing applications is on the rise, with the market value expected to increase from $6 billion in 2017 to nearly $26 billion by 2022. The advantage of additive manufacturing comes from creating complex structures that vary in complexity, customization, lightweight, strength, and speed. As additive manufacturing for medical devices continues to gain momentum, there are five main areas where we are seeing the most growth opportunity from this evolving technology.

Let’s take a look at how the capabilities of additive manufacturing have become the de facto method of production in these industries.

Dentistry

The largest market for additive manufacturing in medicine right now is dentistry and related orthodontics such as bridges, crowns, braces, and dentures. Currently, digital dentistry is a $2.5 billion industry and this is set to more than double in a few years. Digital dentistry is more of a workflow than a single technology. This process typically begins with a scannable model or impression that’s subsequently converted into 3D digital data.

Many 3D-printed dental appliances are easily customized for a precise fit while also being printable in a variety of substrates, from flexible polymers to rigid titanium.

There are also specialized printers configured to use the dental scanning software, along with biocompatible resins, that can fit in small offices and clinics for immediate, on-the-spot solutions ready in a single day.

Anatomical Models

The human body is complex and each is unique. Therefore, when doctors and clinicians need to consider individual treatments, it helps enormously to see an accurate model of the subject in question – whether that’s a bone, an organ, a tumor, or a limb.

Luckily, this is now a reality. Great strides have been made in medical imaging technology, including highly accurate full-color 3D scanning down to the vascular level. Using this data, along with sophisticated topological mapping software such as Mimics®from Materialise, biomedical engineers can use 3D printers to create realistic models for analysis.

From these models, doctors can then devise surgical strategies like where to make incisions. Also, models assembled from multiple pieces can be disassembled to reveal structures within that might otherwise have been blocked from a surgeon’s view. The number of hospitals in the United States with a centralized 3D printing facility has grown exponentially, from three in 2010 to more than 100 by 2019.

General Tools

This is a broad category of auxiliary equipment that would be expensive and time-consuming to develop in smaller volumes. It includes clamps or grips designed for an individual patient’s anatomy, possibly to aid in examinations, treatments, or surgical procedures.

Additive manufacturing applications are also being used in many developing countries to design non-specific clamps, catheters, and other fittings that are fast and economical to produce on the spot as needed.

Prosthetics and Orthotics

Additive manufacturing technology has helped expand patient options for prosthetics and orthotics in terms of fit, function, and aesthetic. A prosthetic can be a replacement of a body part, either internally (i.e., hip joint) or externally (i.e., a missing limb).

Traditionally, prosthetic limbs were inadequate in their customization options. They were either limited in their functionality or incredibly expensive, requiring a lot of measurement, test fitting, and hand-craftsmanship that is inaccessible to many people. This is especially true in remote areas or regions experiencing military conflict, where such prosthetics are in high demand.

Orthotics are also custom pieces, made to assist the wearer’s bone structure with extra support or by correcting misalignment issues. Using modern polymers, 3D printed plastic orthotics are strong, lightweight, durable, and also pliable for added comfort. They can also help mitigate foot pain caused by conditions such as diabetes, arthritis, or plantar fasciitis.

Health Monitoring and Drug Delivery

Another advantage of additive manufacturing for medical devices is the ability to make complex micro gadgets that work inside the body to deliver medicine or to monitor a patient’s health.

MIT, in conjunction with Harvard’s Brigham and Women’s Hospital, has developed an ingestible device that can remain in the stomach for a month. Self-powered, it delivers discrete amounts of drugs for patients requiring long-term care, including those who require treatment for cancer or HIV. This device is currently in the testing stage, but it represents the kind of approach that many other researchers are trying to refine.

Such micro devices will soon be able to transmit data wirelessly to an external medical wearable for detailed health monitoring. Other printed sensors can be injected into the bloodstream to provide active monitoring of blood glucose levels, blood oxygenation, and other critical metrics that doctors will use to quickly respond to a patient’s medical condition.

These are just a few of the amazing applications being made with this transformative additive manufacturing technology.

If you liked reading this article, we recommend the following content:

• Medical injection molding
• Benefits of CNC machining for medical
• Micro molding medical devices
• Metals used in medicine

The advancement of manufacturing technologies has been pivotal to the semiconductor industry’s growth in the last two decades. Today, several types of state-of-the-art machines exist, including high-speed CNC machines and 3D printers, capable of manufacturing a wide range of semiconductor products.

But just because these machines simplify semiconductor machining, it doesn’t mean that manufacturing semiconductor components is any less complex than it used to be. A lot of work and effort goes into creating semiconductor products accurately and precisely.

In this article, we’ll present four things you need to understand about semiconductor machining. This article is a must-read if you plan to set up a semiconductor manufacturing facility or you’re looking to outsource semiconductor machining to a third-party machine shop.

#1 Semiconductor Designs are Becoming Complex and More Challenging to Manufacture

A typical wafer can be as small as 150 mm in diameter, housing hundreds of semiconductor chips that require the highest machining accuracy and tightest tolerances. A small dent or hairline fracture in your wafer can render your semiconductor parts useless.

Modern-day CNC machines play a vital role in semiconductor machining. For example, CNC milling machines allow you to achieve minimum tolerances on surface finishes and flatness and dimensional precision of regular semiconductor designs. CNC turning machines also enable you to create cylindrical semiconductor components while meeting the tolerance requirements on circularity and cylindricity.

But that’s not all there is to the challenges in semiconductor machining.

Silicon — one of the most commonly used materials in integrated circuits and other semiconductor products — is exceptionally challenging to manufacture due to its semi-crystalline nature. This material demands a high level of caution and machining expertise to create the parts you need accurately. (Related Post: CNC Machining Materials: Making the Best Choice for Your Project)

#2 Pre-Machined Pieces are helping Machine Shops to Manage Supplies

As technology has advanced, semiconductors have spread from just computers and cars to pretty much any electronic product you lay your hands on. While this is good news for many semiconductor manufacturers, it’s one of the primary reasons why the demand for chips has continued to outstrip supply in recent years.

Semiconductor manufacturers have been tackling this dynamic demand and meeting the high volume needs of their customers by creating what are known as pre-machined pieces (or machine-ready blanks).

As the name suggests, pre-machined pieces are raw material pieces that have been cut and pre-milled according to standard semiconductor component shapes and sizes. The goal is to reduce the amount of machining (or setup) required to create customer-specific parts.

#3 Smarter Processes are Helping to move Semiconductor Machining into the Future

Predictive diagnostics and artificial intelligence have completely revolutionized semiconductor manufacturing processes. Modern-day semiconductor machining technologies are installed with sensors that monitor critical operation parameters like cutting speed, voltage, and temperature, to name a few.

The data from these sensors are fed through an intelligent system that checks for accuracy, precision, and dips in quality. This allows semiconductor manufacturers to spot design (or manufacturing) flaws early, reducing the likelihood of downtimes and potential semiconductor machining failures.

What’s more, top-tier machine shops automate some of the machining duties that human workers would otherwise handle through advanced collaborative robots—they work alongside human operators (or machinists) to perform manufacturing operations. So, for example, you can set up these robots to handle repetitive tasks like cleaning CNC machined parts or transporting wafers from one machine to another.

These robots allow you to improve operational safety and productivity while ensuring high-quality semiconductor parts.

#4 Applications of CNC Machining in the Semiconductor Industry

Today, CNC machining plays a vital role in almost every industry you can mention, including the semiconductor and electronic industries (Related Post: Exciting Applications of CNC Machining in 8 Top Industries).

To give you an idea of the versatility of CNC machines in the semiconductor industry, here are some of the parts you can manufacture using CNC machines:

• Gaskets and seals
• Electronic circuits
• Sockets
• Gas distribution plates
• Wafer chucks
• Computer chips
• Insulators
• Solder pad stencils
• Flex circuit stiffeners

One thing to note, though: these parts are incredibly complex, requiring high accuracy and tolerances as tight as 4μm to fit into electronic devices. The success of your semiconductor device manufacturing project primarily depends on the machine shop you work with.

Semiconductor Machining Services: Gensun Precision Machining Can Help

Gensun Precision Machining is a leading provider of cost-effective semiconductor machining services across the globe. We’ve been in business for over a decade, helping our customers to produce and ship high-quality semiconductor parts consistently and on time.

Whether you need low-volume semiconductor prototypes or high-volume production, our service is second to none. We have state-of-the-art machining equipment, highly experienced machinists and engineers, and a dedicated quality control team to ensure that your parts get done right every time.

Reach out and tell us about your project and let our team help you create the precision machined parts you need.

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In our last article, we talked about wear resistance, and for many products, getting “worn out” is a key factor in determining the item’s service lifetime. That could be decades or only hours depending on the application and how aggressive the wear conditions are. This is why it’s vital to consider wear throughout the entire design process.

While this can mean a lot of different things, we’ll provide an overview of three key areas for combatting wear.

#1 Create Wear-Resistant Designs

The initial design criteria for any product should establish a minimum acceptable lifetime that will help determine what degree of wear resistance is required. The design phase will also lay out any other product constraints, like the presence or absence of an external lubricant, or the types of surfaces the product will need to slide against.

Depending on their specific design constraints, product developers can come up with any number of unique solutions for reaching their product’s goals without wearing out too quickly.

For example, tires come in all kinds of shapes, sizes, and tread patterns depending on their application. Motorcycle street tires must be rounded so that the operator can handle the bike smoothly, but the tire compounds and tread patterns producers choose can have a significant impact on the tire’s resistance to wear and performance.

Product developers can experiment with multiple different approaches to their design to find one that meets their other performance criteria while improving wear resistance and extending product lifetime.

#2 Select Wear-Resistant Materials

There are a number of ultra-high-performance and wear-resistant materials on the market. Tungsten carbide alloys, Nitronic stainless steel alloys, and Stellite cobalt-chromium alloys all offer some of the most impressive wear resistances available. And choosing a corrosion-resistant material can help mitigate damage from corrosion wear.

However, simply using the most wear-resistant material available is unlikely to meet most design needs. You would never use metal tires on a car, even if they had a better wear resistance than rubber compounds. And while tungsten carbide knives have the benefit of staying sharper for longer, they weigh nearly twice as much as steel knives and are very brittle.

Instead, designers should know that most material classes have special formulations designed to improve performance in a particular area like wear or corrosion. If you need to use steel, for example, you can consider using an abrasion-resistant steel alloy to prolong the material’s service life while staying within design constraints.

#3 Apply Wear-Resistant Coatings & Surface Treatments

Bicycle tire with tungsten carbide spikes surrounded by aluminum.
Hustvedt, CC BY-SA 3.0, via Wikimedia Commons

Similar to the material selection process, there is a very wide range of unique finishing options available to improve wear performance. These could include various protective coatings, metal hardfacing, or hardening treatments. The ones available to you at this stage depend on your choice of material and design.

However, all of these surface finishing treatments provide a great way to improve performance without using a more expensive base material or compromising other properties.

For example, the steel bucket teeth on mining equipment can be hardfaced with a layer of much harder material like tungsten carbide. This treatment significantly improves the abrasion resistance of the bucket teeth, while still taking advantage of the ductility and lower cost of the steel below.

Machining & Processing Wear-Resistant Materials

While high-performance and wear-resistant materials can increase value for the final application, they frequently make processing more challenging. This means extra care and attention are needed during machining and processing to achieve the desired results without damaging the product.

Gensun’s team of experts is experienced in working with a wide range of materials to create high-quality, precision-machined parts. We offer fast and cost-effective CNC machining services to ensure your next fabrication project is a success.

Posted on: Nov.23th, 2018| By Judy, WayKen Project Manager

The advantages of plastic injection molding for manufacturing parts methods include fast production speed, high efficiency, automation of operation, shapes, and size flexibility. Moreover, the injection molding products are accurate in size, easy to be replaced, and the mold parts can be formed into complex shapes. This eco-friendly method is suitable for the molding processing fields such as mass production and complex shape products.

However, although the operators are familiar with specific machines and the operational skills in the molding process of plastic parts, the various rapid injection molding defects on mold design and materials are inevitable. The article aims to plastic injection molding problems and solutions, mainly as follows:

Analyze the causes of these problems generated from raw materials, plastic parts or mold design, molding processes, etc., and propose related solutions.

1. Short Shots

Short shots are a phenomenon in which the mold cavity cannot be completely filled.

Causes:

(1) Die temperature, material temperature, or injection pressure and speed are too low

(2) Uneven plasticization of raw materials

(3) Poor exhaust

(4) Insufficient liquidity of raw materials

(5) The part is too thin or the gate size is too small (6) Polymer melt is prematurely cured due to unreasonable structural design

Remedies:

Material: Use more fluid materials

Mold design:

(1) Fill the thick wall before filling the thin wall to avoid the retention phenomenon.

(2) Appropriately increase the number of gates and runner size to reduce the process ratio and flow resistance

(3) The position and size of the exhaust port should be properly set to avoid the phenomenon of poor exhaust.

Machine:

(1）Check whether the check valve and the inner wall of the material cylinder are seriously worn

(2) Check if the feeding port has material or whether it is bridged.

Process:

(1) Increase injection pressure and injection speed to enhance shear heat

(2) Increase the amount of injection

(3) Increase material cylinder temperature and mold temperature

2. Air Traps

Air traps are where air is trapped in the cavity to create bubbles in the part.

Causes: It is caused by the air being unable to escape from the parting surface, the ram, or the vent when the two melt fronts meet.

Remedies:  Structural design: Reduce thickness inconsistency and try to ensure uniform wall thickness

Mold design:

(1) Add a vent at the last filled place

(2) Redesign the gate and runner system

Process:

(1) Reduce the injection speed of the last stage

(2) Increase the mold temperature

3. Brittleness

Brittleness is that the plastic part is easily cracked or broken in some place

Causes:

(1) Dry conditions are not suitable; use excessive recycled materials

(2) Injection temperature setting is wrong

(3) The gate and runner system settings are not appropriate

(4) The melting mark strength is not high

Remedies:

Material:

(1) Set appropriate drying conditions before injection molding

(2) Reduce the use of recycled materials and increase the proportion of raw materials

(3) Use high-strength plastic. Mold design: Increase the size of the main runner, branch runner, and gate

Machine: Choose a well-designed screw to make the temperature distribution more uniform during plasticization

Process:

(1) Reduce the temperature of the material cylinder and nozzle

(2) Reduce back pressure, screw speed, and injection speed

(3) Increase the material temperature and injection pressure, improve the melting strength

4. Burn Marks

The burn marks are that the gas in the cavity cannot be removed in time, resulting in blackening at the end of the flow.

Causes:

(1) The air in the cavity cannot be removed in time.

(2) Material degradation: overhigh melt temperature; overcast screw speed; improper design of the runner system

Remedies:

Mold design:

(1) Add an exhaust system to a place where the exhaust gas is easily generated

(2) Increase the size of the runner system

Process:

(1) Reduce the injection pressure and speed

(2) Reduce the barrel temperature

(3) Check if the heater and thermocouple are working properly.

5. Flash

It means that excess plastic is present on the mold parting or ejector part.

Causes:

(1) Insufficient clamping force

(2) The mold has defects

(3) The molding conditions are unreasonable

(4) Improper design of the exhaust system

Remedies:

Mold design:

(1) Reasonably design the mold to ensure that the mold can be closed when the mold is closed

(2) Check the size of the exhaust port

(3) Cleaning the mold surface

Machine: Set the machine of the appropriate size process:

(1) Increase the injection time and reduce the injection speed

(2) Reduce the barrel temperature and nozzle temperature

(3) Reduce the injection pressure and pressure

6. Delamination

It refers to the surface of the part that can be peeled off layer by layer.

Causes:

(1) Mixing other incompatible polymers

(2) Excessive release agent used during molding

(3) resin temperature is inconsistent

(4) Excessive moisture

(5) The gate and the flow path have sharp angles

Remedies:

Material: Avoid incompatible impurities or contaminated recycled materials mixed into the raw materials

Mold design: Chamfer all runners or gates with sharp angles

Process:

(1) Increase the barrel and mold temperature

(2) Appropriate drying of the material before molding

(3) Avoid using too many release agent

7. Jetting

A spray trace is caused by the melt flowing too fast, generally serpentine.

Causes:

(1) The gate size is too small, and it is facing the product surface with a large cross-sectional area

(2) Filling speed is too fast

Remedies:

Mold design:

(1) Increase the gate size

(2) Change the side gate to the lap gate

(3) Increase the stop pin in front of the gate

8. Flow Lines

Flow lines are molding defects that are wavy on the surface of the product known as a kind of frog jump caused by the slow flow of the melt.

Causes:

(1)Mold temperature and the material temperature is too low

(2) Injection speed and pressure are too slow

(3) The size of the flow channel and gate is too small

(4) Due to the structure of the product, the acceleration is too large when the filling flow is caused.

Remedies: Mold design:

(1) Increase the size of the cold well in the flow channel

(2) increase the size of the runners and gates

(3) Shorten the size of the main channel or switch to the hot runner

Process:

(1) Increase the injection speed

(2) Increase injection pressure and pressure

(3) extend the pressure holding time

(4) Increase the mold temperature and material temperature

9. Fog

A cloud-like discoloration occurs near the gate. The reason is the melt fracture.

Causes: If the gate is too small or the cavity at the glue is too thin, the flow rate of the melt is large, the area of the break is small, the shear rate is large, and the shear stress is often increased so that the melt rubber breaks and the fog shift occurs.

Remedies: Moldflow simulation. It is possible to predict the temperature, shear rate, and shear stress of the melt passing through the above narrow zone. Moldflow generally provides an upper limit for the temperature, shear rate, and shear stress of various plastic materials. Moldflow engineers can make adjustments based on the analysis results to find the appropriate gate size and cavity wall thickness at the glue inlet to eliminate fog.

10. Streaks

Streaks are those in which water, air, or char is distributed in the direction of flow along the surface of the part.

Causes:

(1) The moisture content in the raw materials is too high

(2) Air is trapped in the raw material

(3) Polymer degradation: the material is contaminated, barrel temperature is too high; insufficient injection volume

Remedies:

Mold design:

Check if the exhaust position is sufficient Process:

(1) Choose the right injection molding machine and mold

(2) When switching materials, clean the old materials completely from the barrel

(3) Improve the exhaust system

(4)Reduce melt temperature, injection pressure or injection speed

11. Sink Marks

It is a phenomenon in which the surface of the part is concave at the wall thickness.

Causes:

(1) Injection pressure or holding pressure is too low

(2) The holding time or cooling time is too short

(3) Melt temperature or mold temperature is too high

(4) Improper design of the structure of the parts

Remedies:

Design:

(1) Corrugated surface on the surface where dents are easy to occur

(2) Reduce the thick wall size of the workpiece, minimize the aspect ratio, and the adjacent wall thickness ratio should be controlled at 1.5~2, and try to make a smooth transition. Redesign the thickness of the ribs, counterbore, and ribs. Their thickness is generally recommended as 40-80% of the basic wall thickness.

Process:

(1) Increase the injection pressure and pressure

(2) Increase the gate size or change the gate position

12. Weld Lines

The weld lines refer to the surface defect caused by the two streams being welded together.

Causes: If there are holes, inserts, or multi-gate injection molding methods in the fabricated parts or the wall thickness of the parts is uneven, weld lines may be generated.

Remedies:

Material: Increase the fluidity of plastic melt

Mold Design:

(1) Change the position of the gate

(2) Add a venting slot

Process:

(1) Increase the melt temperature

(2) Reduce the amount of release agent

13. Warpage

The most difficult problem to solve in the design and production of plastic parts is the warpage.

Causes:

(1)Mold structure: pouring, cooling system and ejection system

(2) Product structure: plastic parts wall thickness changes, with curved or asymmetrical geometry, ribs and BOSS column design is not reasonable

(3) Production process: the plastic parts are not fully cooled, and the injection and pressure holding curves are unreasonable

(4) Plastic materials: plastic materials have, no added fillers, and the size of the shrinkage is.

Remedies:

(1) The mold temperature is unstable. Provide cooling/heating balanced mold

(2) Irregular section thickness Redesigned product shape and size according to resin characteristics

At WayKen, we have encountered many similar plastic injection molding problems and solutions in some cases of prototype injection molding. In order to create injection molding products for our customers, we extremely take injection molding machine parts details and injection molding step by step to heart before manufacturing parts and during the injection molding process.