When reaction injection molding processing technology is introduced into the injection molding process, it will result in a new die casting economical process that will change so that the product can still be coated with polyurethane in a closed mold. This change will be brought about as a result of the introduction of the technology. This method makes it possible to coat the parts with polyurethane while they are still in the closed mold state. This alters the previous situation and accomplishes the goal of saving money. In the course of a collaborative research and development effort carried out by the system suppliers Fischer Automotive Systems GmbH, Bayer MaterialTechnik GmbH, and KraussMaffei Plastics Technology GmbH, a prototype was utilized to investigate the viability of the proposed new method.
The cup holder trim for a luxury vehicle was chosen as the product to be evaluated for this test. This component, which can also be manufactured using a conventional coating process via the assembly line at Fischer Automotive Systems, is coated with a polyurethane coating that is approximately 1. 5 millimeters thick and was selected as the product to be evaluated. According to Rainer Protte, head of the polycarbonate division and commercial department at Bayer, which is responsible for the development project, this combination demonstrates that the production of such stylish and elegant upholstery is a very promising application of technology. The innovative new technology that was created by Bayer MaterialScience TechnologyHistorically, a binary coating system was a specialized kind of in-mold coating that involved injecting coating material directly into a closed mold in order to coat the product.
Later on, this method was applied to the use of polyurethane-coated products. Meanwhile, Klaus Maffe developed a surface forming method, which he debuted at the K2004 exhibition. Klaus Maffe is an injection molding Metal Plating plant and polyurethane production machinery manufacturer. Both processes can be categorized as direct methods: the direct skin process for polyurethane skin and the direct coating process for polyurethane coating. Direct methods are used for polyurethane skin and coating respectively. combined with the Fisher Automotive Systems team's expertise. The process described above is fundamentally similar to binary injection molding; however, rather than utilizing a thermoplastic material as the second component, it makes use of a reactive polyurethane system that injects the material directly into the mold cavity by way of a polyurethane mixing head.
The process begins with the injection of thermoplastic material into the initial cavity of the mold, followed by the opening of the mold and the subsequent transfer of the product into the secondary cavity of the mold. This transfer can be accomplished with the help of parallel moving tables, wheels, or stationary rotary forming equipment. The curing reaction takes place immediately on the surface of the thermoplastic material during the re-mold closing process, which uses a process called reaction injection molding. This process injects a reactive two-component polyurethane system. Following the curing of the polyurethane system, the subsequent product can be processed in the first cavity using a grinding wheel or fixed rotary forming equipment. This reduces the length of the cycle and increases the production efficiency of the business.
People are able to feel at ease because the surface of the polyurethane material with fine wood die casting services grain on the decorative cup holder does not have flaws such as stripes, blisters, or color separation. This contributes to the cup holder's overall impression of opulence and comfort. Excellent surface treatment, luxurious appearanceThe cup holder decoration is carried out using bayblend as the carrier material. It is a hybrid material made of PC and ABS. The aliphatic two-component polyurethane system, which is the foundation of the polyurethane coating, is still in the research and development stage. At the same time, it has good bonding properties with thermoplastic carrier materials. The design of the mold for Fischer Automotive Systems was a particularly difficult undertaking.
Because the viscosity of the polyurethane system is much lower when compared to the viscosity of the thermoplastic melt before curing, the mold needs to be extremely accurate. It is also essential to make certain that the mold has adequate ventilation. The use of this kind of mold makes it possible to ensure the production of items of the highest possible quality. The new method allows for a wide range of customization in terms of coating thickness, surface feel, and decorative treatment. It has the ability to produce polyurethane coatings that are very thin or skins made of solid or foam polyurethane that are only a few millimeters thick, which has the potential to significantly reduce costs. The new method has many advantages over the traditional method of producing polyurethane skins, including the fact that it only requires a single mold to bring about the desired end product. Because it is not necessary to use a second mold in order to produce the skin, the overall cost of the mold, as well as the expense of the logistics involved, is reduced.
The level of success achieved by 3D printing is dependent on a wide variety of factors, including the type of material used, the size of the object being printed, the parameter settings, and other aspects such as the minimum value, wall thickness, and size. It is not recommended to print the largest size model at one time because printing 3D will increase the risk if it is possible. The maximum forming size depends on the printing space of the 400mm FDM printer, which is sla600xml400mm. You can lessen the likelihood of something going wrong by selecting tailors and seamstresses. You can also reduce the costs associated with printing in an appropriate manner.
Minimum wall thickness, maximum wall thickness, high stiffness, and high strength are the design principles that have been adopted for the structural model in order to ensure its strength. In most cases, 0. 8 mm, sla, or 1. 5 mm is considered to be the minimum wall thickness for AFM. The wall thickness can be altered to be anywhere between 0. 8 and 2. 5 millimeters in range, depending on the larger size of the model. The minimum fastening clearance required by FDA is 0. 2-0. 3mm, while the minimum fastening clearance required by SLA is 0. 1. 0. 2mm. This, of course, only applies if the wall thickness is greater than the minimum required wall thickness. In order to prevent sample loss as a result of printing and cleaning, the resolution of the 3D printer is the primary factor that determines both the maximum model gap and the minimum print details.
