Seven Common Defects and Solutions for PC/ABS injection molding Products Flow Lines The flow lines are caused due to the poor fluidity of the material. Unlike silver streaks, it is not caused by moisture or material decomposition, thus resulting in a different look. Solution: The flow lines can be eliminated by raising the material temperature … Read more
Due to the greatly varied market demands for molds and molded products, there are many kinds of changes and thus high requirements for us in such aspects as shape, size, material, structure and more, causing us many problems and difficulties in the production process of molds and products. How to effectively control the geometric dimensions … Read more
PVC plastic is a heat-sensitive material that features a poor injection moldability, for which the reason is that an excessively high melt temperature or an excessively long heating time easily causes PVC decomposition. Therefore, the key to molding the PVC products lies in the control of the melting temperature. The heat sources for melting the … Read more
P20 Mold steel Overview:The P20 Mold Steel is a type of mold welding consumable, and the earliest is P20, followed by P20H and P20Ni. The P20 Steel is applicable to the production of molds for plastic materials, as well as those for diecasting low melting point metals. This steel material features great machinability, as well … Read more
HIPS(High impact polystyrene) is an impact-resistant polystyrene product created by adding butyl rubber particles to polystyrene. This polystyrene product is added with micron-sized rubber particles, and links the polystyrene and the rubber particles together by means of grafting. When subject to an impact, the tip end stress of the crack propagation is released by the … Read more
Steel hardness describes the properties of steels that resist deformation, indentation, penetration, and scratching. steel hardness is important because the inherent resistance of the surface to withstand friction or erosion by oil, steam, and water from injection molding process,there are several harness test method as below: 1.Brinell Hardness (HB) Press a hardened steel ball of a certain … Read more
Thermoplastic Elastomer (TPE) Domestically in China, it is usually known as “TPE”, basically referring to the styrene-based thermoplastic elastomer. The styrene-based TPE (known as TPS in foreign markets) is a copolymer of butadiene or isoprene and styrene block, so its performance is similar to that of SBR. Strengths: High elasticity of rubber and plastic injection … Read more
Warpage as one of the most common defects in a plastic injection molded product, refers to the situation in which the shape of the injection molded part deviates from the shape of the mold cavity. The following is a brief analysis of the factors that affect the warpage of the injection molded products. How the … Read more
A variety of plastics coloring systems can be used to get color for the plastic materials, each possessing its unique features, benefits, and weaknesses.now we share some plastics coloring process as below: Select a Color Scheme According to the plastic properties, the molding process, the toner characteristics, the color matching principles, the product requirements and … Read more
RAL COLOR CHART RAL is an European color matching system which defines colors for paint, coatings and plastics. The RAL color standard is administrated by the RAL Deutsches Institut für Gütesicherung und Kennzeichnung. ‘RAL’ is the abbreviation of ‘Reichs-Ausschuß für Lieferbedingungen und Gütesicherung’. Please click the link as below for RAL Color reference RAL Color Chart