Ligue 2 side AS Nancy have confirmed the departure of young central midfielder Remi Walter to top flight side OGC Nice.

The fee is understood to be worth €1m and represents fantastic business from Les Aiglons.

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Wear resistant ceramic adhesive glue is divided into four types like normal temperature ceramic glue, medium temperature ceramic adhesive, high temperature type, and economical wear resistant ceramic glue. According to the different application parts , it can be divided into special ceramic glue for cyclone, ceramic glue for magnetic separator,ceramic adhesive for powder separator, glue for fan impeller, special glue for ball mill lining ceramic, etc. Pingxiang Chemshun Ceramics Co,ltd can choose the most suitable wear resistant ceramic glue according to your working conditions.

Chemshun Ceramics high temperature wear resistant ceramic glue adhesive has characteristics such as:be cured at room temperature or heated; max highest resistant temperature is 280℃, and the highest working temperature when used for structural bonding is 250℃.

Ceramic glue water has wide application for bonding metals, ceramics, cement and glass under the working temperature 250℃. is also suitable for bonding and repairing mechanical parts under high temperature conditions.

Ceramic adhesive glue instruction manual include surface treatment, mixture in correct property, brushing glue, curing . every application process needs to be operated carefully with instruction . Chemshun technicians are ready to help you more if any problems exist when application

Ligue 2 side Auxerre have confirmed the arrival of Lille striker Sehrou Guirassy on loan until the end of the season.

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Guirassy has struggled to received adequate playing time at Lille and there will be no buy option included in the deal.

Four types of UV-(meth)acrylate curable alkyds were synthesised and formulated with two tri(meth)acrylate reactive diluents. Thermal, mechanical, and coating properties, including gloss, adhesion, hardness, impact resistance, and chemical resistance, were evaluated.

In general, methacrylate-based UV-curable alkyd has higher modulus and toughness, whereas acrylate-based UV-curable alkyd has better flexibility and adhesion. In all four UV-curable alkyd resin systems, increasing reactive diluent content will enhance properties like tensile strength and modulus, hardness, and chemical resistance. However, there is a decrease in properties such as elongation at break, adhesion, and impact resistance. Among four UV-curable alkyd resin, acrylated medium linseed oil alkyd exhibited the best overall performance than other systems in terms of hardness, flexibility, and adhesion. Particularly, acrylated medium linseed oil alkyd formulations with 20–30 wt% of glycerol triacrylate as reactive diluent showed the best coating performance.

It is possible to produce coating films with a good balance of crosslink density, flexibility, and adhesion using such UV-curable alkyd systems. Further, it has a huge potential in alkyds as an alternative for cobalt-based drier system.

The study has been published in Journal of Coatings Technology and Research, Volume 20, issue 2, March 2023

Sika has closed the transaction related to the divestment of the European industrial coatings business.

The deal was announced on August 19, 2021. The associated sales proceeds amount to EUR 200 million. The transaction will have a positive one-time impact on the profitability of Sika in the first half-year 2022.

Half-year report in July

The final effect on the financial statements will be presented in the half-year report to be published on July 22, 2022.

Sika is a specialty chemicals company with a leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protecting in the building sector and motor vehicle industry. Sika has subsidiaries in 101 countries around the world and manufactures in over 300 factories.

Superhydrophobic coatings having a self-cleaning ability and anticorrosion performance are desired in many industrial contexts; however, high costs and complex fabrication methods usually limit their application.

In a new study, thin anticorrosive superhydrophobic coatings were prepared by a scalable, simple, and inexpensive spraying method to protect AA2024-T3 surfaces. The two-component coatings were designed using fluoropolyurethane and varying concentrations of surface modified silica nanoparticles.

Increased contact angles

Increased silica nanoparticle concentrations up to 10 wt% led to increased contact angles from 92° to 167°. The lowest contact angle hysteresis was obtained for the coating containing 4 wt% nanoparticles. FE-SEM images showed that high concentrations of nanoparticles (more than 4 wt%) led to cracks in the coating surface. The best performance of a coating was observed when the coating contained 4 wt% nanosilica particles, resulting in a 164° water contact angle, almost 60 days of surface protection, an impedance value of 2.2 × 10⁹ Ω·cm², 0.9% water uptake, and marked adhesion strength. The impedance value of the coating with 4 wt% nanosilica particles was about 25× that of the blank sample.

The study has been published in Progress in Organic Coatings, Volume 169, August 2022.

Time to read: 7 min

Die casting is a manufacturing process in which molten metal, typically a non-ferrous alloy like aluminum or zinc, is injected into a mold or die to create precise and complex metal parts. It’s a method known for its efficiency in producing large quantities of parts with high precision. The figure below shows a magnesium die-cast automotive component:

This article looks at what die casting is and how it works. 

Die Casting Mold Overview

Die casting works by injecting molten metal into a die or mold. Mold design and manufacturing are crucial elements of the die-casting process. The mold cavity is created using two hardened/tempered steel or cast-iron dies machined to the desired part’s net shape. Pressure die casting involves injecting molten metal into the die cavity at high pressures and speeds, whereas low-pressure die-casting molds and gravity die-casting molds are filled at a much slower pace.

Low-pressure die casting is typically less expensive (requires less tooling) and results in lower levels of cast porosity. However, high-pressure die casting should be used for parts with thin walls (less than 3 mm thick) due to the ability of high pressure to force molten metal into the thin mold cavities. Once the molten metal is injected into the mold, it solidifies quickly, producing complex and detailed parts with high dimensional accuracy. 

What Are the Two Types of Die Casting?

Die casting can also be classified by the temperature of the mold or chamber. The two most common temperature-classified metal die casting methods are cold-chamber and hot-chamber die casting. 

Cold-Chamber Die Casting 

Cold-chamber die casting involves introducing molten metal at room temperature into a separate shot chamber using a ladle or pouring method. The shot chamber contains a ram that vertically forces the molten metal into a steel mold (die) with movable and fixed sections. The ram applies pressure ranging from 2,000 to 20,000 PSI to propel the molten metal into the die. The pressure is maintained until the metal cools and solidifies, after which the finished product is ejected from the die. This method is suitable for high-melting-temperature alloys like aluminum.

Hot-Chamber Die Casting

Hot-chamber die casting is a metal casting process specifically designed for low-melting-point alloys like zinc, tin, lead, and magnesium. This process is the most common and faster method than cold-chamber die casting. In this method, the metal is melted within the casting machine, in a furnace connected to the machine. A hydraulic system injects molten metal into the die under high pressure. This process is efficient for producing intricate shapes with high-quality materials that have lower melting points. Still, it is not suitable for alloys with higher melting points due to the risk of damaging the pump that injects the molten metal.

What Are the Steps Involved in Die Casting?

Die casting involves the following steps:

1. Preparing the Die: The first step is to create the die. Dies are typically made from steel and are designed to endure high temperatures and pressures. The mold design starts with a CAD (computer-aided design) drawing of the mold. This file is used to make the mold using CNC (computer numerical control) machining. After the die is made, it is prepared with a releasing agent or lubricant. This helps release the cast part. The die is then clamped and closed with high pressure. 
2. Metal Preparation: In the next step, the metal is prepared for the injection process. The metal, typically an aluminum, zinc, or magnesium alloy, is melted using a furnace and poured in a ladle. 
3. Metal Injection: The molten metal is poured into the shot chamber. This chamber is hot for hot-chamber die casting and cold for cold-chamber die casting. After that, the molten metal is injected into the die using high pressure. 
4. Cooling: The mold is allowed to cool and solidify into the shape of the mold. 
5. Ejection: After cooling, the part will be hard and completely solid and can be removed from the die. 
6. Trimming: The final step of die casting is the trimming step. This involves removing any excess metal found on the product. This is done by using a saw or trim die.  

What Are the Most Suitable Materials for Die Casting?

Many different metals (primarily nonferrous alloys) are compatible with die casting. The three most common materials are:

Aluminum Alloys

Aluminum alloys are widely employed in die casting due to their unique properties. Notable alloys such as 380, 360, 390, and 413 exhibit high operating temperatures, outstanding corrosion resistance, low density, excellent strength, and good thermal conductivity. Additionally, aluminum alloys offer good stiffness, a favorable strength-to-weight ratio, EMI and RFI shielding properties, and recyclability. They can also withstand high temperatures and retain dimensional stability with thin walls.

Zinc Alloys

Zinc alloys, including Zamak #2, #3, #5, #7, ZA8, and ZA27, offer a balance of strength, toughness, firmness, and cost-effectiveness. These alloys are known for their improved castability, shortened cycle time, and extended die life. The mechanical qualities of zinc alloys rival and exceed other common die-casting materials such as aluminum, magnesium, and bronze. Their exceptional casting fluidity contributes to thin-wall castability, resulting in smaller, lighter, cost-effective components.

Magnesium Alloys

Magnesium, particularly the AZ91D alloy, stands out for its toughness, durability, lightweight nature, and good castability. With a weight 75% lighter than steel and 33% lighter than aluminum without compromising strength, magnesium alloys are preferred for applications requiring complex casting with tight tolerances. The material’s excellent corrosion resistance further enhances its appeal. Magnesium alloys in die casting offer a valuable combination of strength and weight reduction, making them suitable for various industrial and automotive components.

Other Die Casting Alloys

Besides the primary materials, die casting can involve other alloys such as bronze, copper, brass, lead, and tin. Tin, for example, is known for its high fluidity and low melting point, leaving minimal wear on molds. On the other hand, bronze, specifically white bronze, finds application in the jewelry industry due to its low melting point, resembling white gold and stainless-steel alloys. 

Applications of Die Casting

Die casting has many applications in various industries. Some of the most common applications include:

1. Automotive: Many automotive parts, such as gears, pistons, and housings, are made using die-cast parts.
2. Aerospace: Die-cast aluminum is especially popular for aerospace components due to its lightweight.
3. Electronics: Electronic housings and connectors are commonly made from die-cast aluminum, zinc, or magnesium, providing good shielding from radio frequency interference (RFI) and electromagnetic interference (EMI).
4. Construction: Window frames, cladding, and other structural components are commonly made from die-cast metals, especially aluminum.

Advantages and Disadvantages of Die Casting

Die casting offers the following benefits and advantages:

1. Fast cycle times.
2. Is suitable for producing complex parts.
3. Produces parts with high dimensional accuracy.
4. Produces parts with a smooth surface finish, which lessens the need for post-processing.
5. Offers repeatable, accurate results with efficient production. This leads to cost-effectiveness for large production runs.

Die casting also has the following drawbacks and disadvantages:

1. The cost of equipment and dies can be very expensive.
2. Is typically unsuitable for ferrous metals or metals with a high melting point.
3. Designing and tooling new dies is a complex process that can take long before a production run starts.
4. Up-front costs and lead times may be prohibitively high with small production batches. More than small numbers of parts may be needed to recoup the large up-front investment.

Frequently Asked Questions 

Why Is It Called Die Casting?

Die casting is named for using dies – steel molds crafted primarily through CNC machining. These dies, consisting of a fixed, stationary half attached to the casting machine and a movable ejector half, serve as the molds into which liquid metal is injected.

What Is the Difference Between Mold and Die Casting?

Die casting and permanent-mold casting are two key methods in metal part production. Die casting injects molten metal into a steel mold under high pressure, ideal for small to medium-sized parts like those made of zinc, aluminum, and magnesium. It offers high precision, complex shapes, and efficient production rates. On the other hand, permanent mold casting pours molten metal into a reusable mold, typically made of steel or cast iron, suitable for larger parts composed of alloys like brass, bronze, and iron. Permanent mold casting is cost-effective, supports a variety of materials, and produces parts with high strength and good surface finish. The choice between the two depends on factors such as part size, complexity, and material properties.

Is Die Casting a Precision Casting Process?

Yes, die casting is generally considered to be precision casting. 

Is Post-Machining Always Required after Die Casting?

Aside from trimming or deburring operations, post-machining your parts is not necessarily required after die casting. Post-die-casting machining may be required for the final part if tight tolerances or specialized surface finishes are required, etc.

What Is the Difference Between Forging and Die Casting?

Casting involves heating metal in a furnace until it reaches a molten state. In this liquid form, the metal is poured into a die or mold to take on the desired component shape upon solidification. On the other hand, forging utilizes a combination of thermal and mechanical energy applied to ingots, causing the alloy to change shape while remaining in a malleable but solid state. Casting relies on transforming metal from liquid to solid within a mold. At the same time, forging achieves shape alteration by applying heat and force to a solid metal form.

Die Casting Services

Die casting is a popular metal fabrication process due to its accuracy, efficiency, and low cost. Although pretty straightforward, this process requires expert knowledge and experience, which makes outsourcing to the right manufacturing service provider essential. Fictiv consists of a team of knowledgeable and experienced engineers. We pride ourselves on delivering the best quality products according to our customers’ needs. Create a free account with Fictiv or upload your design for a free, instant quote.

Thordon Bearings is offering its award-winning COMPAC seawater lubricated propeller shaft bearing system with a lifetime bearing wear life guarantee.

To date, the COMPAC bearing has been offered with a 15-year wear life guarantee, but Thordon recently announced at the SMM 2018 trade show in Hamburg, Germany, that the company is now guaranteeing its polymer bearings will not need to be replaced throughout a vessel’s operational life.

The extended wear life of a component critical to vessel performance is based on an extensive study of the performance data of the 550-plus COMPAC shaft bearings in operation on commercial vessels, dating back more than 25 years.

Thordon Bearings’ President and CEO, Terry McGowan, said: “After evaluating the performance and operational data of the ocean-going merchant vessels that operate COMPAC seawater lubricated bearings we found that if the environment was controlled – ensuring an adequate supply of clean water consistently delivered to the shaft bearings – the COMPAC bearing wear was minimal. Environmental protection is of course high on the list of priorities for ship owners, but system reliability, reduced operational expenditure and maintenance are other key factors influencing the purchasing decision.”

“We believe our system meets these commercial ship owner priorities, and this is why we are pleased to now offer our COMPAC bearings with a lifetime guarantee. With the announcement today, we are taking the seawater lubricated propeller shaft to the next level.”

The COMPAC bearing is guaranteed to meet Classification Society propeller shaft bearing wear specifications for the lifetime of the vessel or Thordon Bearings will supply new bearings free of charge. According to VesselsValue.com, the average merchant ship lifespan is 25 years.

The guarantee is subject to prior approval by Thordon Bearings and limited to the supply of replacement bearing(s). All operators of commercial tonnage operating with >300mm diameter shafts can benefit from the guarantee, although the complete COMPAC system must be specified.

This is because when the bearing operates in conjunction with Thordon’s Water Quality Package (that removes abrasives), ThorShield anti corrosion shaft coating, shaft liners and the award-winning SeaThigor forward seal, bearing wear is negligible, providing optimum through life performance from what is already an exceptionally robust bearing.

Commenting on his experience of the COMPAC system installed aboard a number of Princess brand cruiseships, Richard Vie, Carnival Corporation’s former Vice-President, Technical Development and Quality Assurance – Shipbuilding, said: “From a business, environmental and safety standpoint, seawater lubricated shaft line bearings offer the optimum solution.

“Thordon’s products are proven and reliable with an exceptional lifetime, and of course the lubricant – seawater – is limitless and without cost. This substantially reduces the risk of failures compared to other propulsion solutions and therefore increases ship availability and protects its earning potential over its lifetime. Operating costs are minimal. The risk of pollution of the seas through the release of oil or any other lubricants and subsequent fines and adverse publicity is eliminated completely. Ship performance and safety is not likely to be compromised by propulsion system failures thus further strengthening the case for adopting a seawater lubricated shafting solution.”

Capt. Simon Merritt, Senior Fleet Manager at Carisbrooke Shipping, a long-time proponent of the seawater lubricated propeller shaft arrangement, agreed: “We are very satisfied with the Thordon system. We first selected seawater lubrication for environmental reasons, but having operated COMPAC on a number of vessels, we have experienced a reduction in ship operational costs compared to oil lubricated propeller shaft configurations. A lifetime guarantee on the bearing is likely to add to those savings.”

Carisbrooke Shipping’s first COMPAC installation was in 2011 to the 8,651dwt multipurpose dry cargo ship Vectis Eagle. Carisbrooke now operates the COMPAC seawater lubricated propeller shaft arrangement on a total of eight vessels.

“Based on our experience with these bearings in continuous service for the last 6 years we will ensure that future building specs incorporate the Thordon system,” added Capt. Merritt.

Craig Carter, Thordon Bearings’ Director of Marketing and Customer Service, said: “For the global shipping industry to fully support any movement to safeguard the ocean environment, any technological development has to make commercial sense. Shipowners and managers are becoming much more interested in a proven technology that eliminates both operational and accidental stern tube oil pollution while meeting increasingly stringent international environmental regulations. A ‘COMPAC For Life’ takes advantage of this and helps secure our leading position in the seawater lubricated propeller shaft bearing market.”

Current ship owners using COMPAC seawater lubricated propeller shaft bearings include: Lomar Shipping (UK), Grimaldi Group (Italy), Alaska Tanker Company (USA), Princess Cruises (USA), Atlanska Plovibda (Croatia), Groupe Desgagnés (Canada), Carisbrooke Shipping (UK), Crowley Maritime Corp. (USA), CSL Group (Canada), COSCO (China), NY Staten Island Ferries (USA), Tropical Shipping (USA), BC Ferries (Canada), Viking Cruise Lines (UK), Polsteam (Poland), Erik Thun Group (Sweden), Algoma Corp. (Canada), Blue Star Ferries (Greece), and more that 40 Navies worldwide.

Thordon Bearings
thordonbearings.com

Ligue 1 side Lorient have reached an agreement with ESTAC Troyes for the transfer of young winger Jimmy Cabot worth €1.8m.

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The player is understood to have reached a 4.5 year contract agreement with Les Merlus, with just loose ends left to tie up in the coming hours.

It is unclear at the time of writing whether or not the player will be loaned back to ESTAC Troyes until the end of the season.

I know this is probably a controversial opinion, but I'm going to say it: Adele is the best. Her voice, her eyeliner, her hair. I mean, even when she had mic problems at the Grammys, her voice still sounded amazing and she handled the situation like a total pro. Her perfection streak just kept rolling at last night's Brit Awards. The 27-year-old singer picked up four awards and supported Kesha during her acceptance speech. Oh, and she did all of that while wearing an inexpensive drugstore product on her lips.

Makeup artist Michael Ashton used a combination of lip liner and Lucas' Papaw Ointment to create Adele's stunning bold red lip. Sadly, Ashton couldn't reveal the exact lip liner shade he used, but we love how accessible his method of dabbing a bit of the $9 ointment over it is.

For the rest of the look, Ashton relied on the British company Ex1 Cosmetics. He used the Ex1 Invisiwear Foundation and the Ex1 Delete Concealer to smooth out her complexion. Ashton also added a bit of the Ex1 Blusher in Pretty in Peach to give her cheeks some color. And for that smoky eye? Ashton relied on the Tom Ford Eyeshadow Palette in Nude Dip. Glad to know we have one thing in common with Adele, even if it's just loving the same lip ointment. Baby steps, people.

Adele reveals her favorite body part: