What is cnc prototype and what’s 3D printer service torchmold factory 3D printer service The very former thing in inventing or building something revolutionary is having to see its presence, a prototype which if very simply put forward is a three-dimesional solid figure of your visions. developing a prototype is an opportunity to [...]
what's plastic prototype Torch mold offers expert plastic prototyping services for your need. We understand the importance of prototyping services and how it helps in the development of a new product. With us, you can test your plastic prototype parts as they are produced on real plastic injection molding equipment. This [...]
Plastic Vacuum Casting Vacuum casting Vacuum Casting is a process for casting using a vacuum to channel the liquid material into the mold. This process is useful in the cases where air entrapment is a problem. The process starts with the placement of silicone mold in a vacuum chamber. The raw material is [...]
Extrusion molding is a process used to create objects of a fixed cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section. The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections and work materials that are brittle, because the material only encounters compressive and shear stresses. It also [...]
Compression molding: Compression molding is a method of molding in which the molding material, generally preheated, is first placed in an open, heated mold cavity. The mold is closed with a top force or plug member, pressure is applied to force the material into contact with all mold areas, while heat and pressure are maintained until the molding material has cured. The process employs thermosetting resin in a partially cured stage, either in the form of granules, putty-like masses, or preforms. Compression molding is a high-volume, high-pressure method suitable for molding complex, high-strength fiberglass reinforcements. Advanced composite thermoplastic can also be compression molded with unidirectional tapes, woven fabrics, randomly oriented fiber mat or chopped strand. The advantage of compression molding is its ability to mold large, fairly intricate parts. Also, it is one of the lowest cost molding methods compared with other methods such as transfer molding and injection molding; moreover it wastes relatively little material, giving it an advantage when working with expensive compounds. However, compression molding often provides poor product consistency and difficulty in controlling flashing, and it is not suitable for some types of parts. Fewer knit lines are produced and a smaller amount of fiber-length degradation is noticeable when compared to injection molding. Compression-molding is also suitable for ultra-large basic shape production in sizes beyond the capacity of extrusion techniques. Torchmold had 9 years experiences for design and buliding Compression molding. Torch mold technical design team consists of: plastic, mechanical, tooling, and aeronautical engineers. Whether a customer requires a complete mold design, reverse engineering, prototypes, or short run production parts, our team can design a mold to achieve the desired results, creating a unique opportunity for cost reduction and increasing speed to market by providing manufacturability insig […]
Blow molding (also known as blow moulding or blow forming) is a manufacturing process by which hollow plastic parts are formed. In general, there are three main types of blow molding: extrusion blow molding, injection blow molding, and stretch blow molding. The blow molding process begins with melting down the plastic and forming it into a parison or preform. The [...]
How to improve injection part grey and black clouding appearance problem Grey or black clouding Probably the grey or black clouding happen around the middle of inject runner. Injection gate or far away gate place. This kind problem was easy see on the transparent parts for raw material PMMA PC or PS. Physical reasons If [...]
H7 tolerance
MIL-DTL-5541F
What’s happen for the jetting marks? From the runner inject area had dark melt line after inject will be show on the plastic surface. This kind mark line will be cover under the plastic material after injection. How coming this kind jetting marks? Physical cause These kinds jetting marks usually happen on the mold cavity [...]
