Color Strip Color Flower Analysis Of Injection Molded Products The occurrence of such defects is mainly caused by the problems of plastic parts colored with masterbatch, although the color masterbatch is superior to dry powder coloring and dyeing in terms of color stability, color purity and color migration. Coloring, but the distribution, that is, the…
DetailsThermal Spraying Of Surface Treatment Of Die Castings Thermal spraying is the use of special equipment to heat the solid material to a molten or semi-molten state and accelerate the spraying onto the surface of the substrate to form a special thin layer to improve the surface properties of the substrate. 1. Heat source Flame,…
DetailsCauses And Solutions For Die Casting Defects 1. Flow marks, stripes Characteristics: The surface of the casting exhibits a localized sag smooth texture that is consistent with the flow direction of the molten metal. This defect has no development tendency and can be removed by polishing. 2. Cold insulation, cold connection Features: A gap in…
DetailsDie Steel Quenching Cooling Technique There are four aspects to be aware of when mold steel is quenched and cooled. They are cooling medium problems, cooling equipment problems, clear mold surface covering problems, and manual operation technical problems. 1. Die steel spray quenching method Large-scale complex, especially thick and thin workpieces and die steels, in…
DetailsReasons For Cracking Of Injection Molded Products Cracking, including filament cracks on the surface of the part, microcracking, whitening, cracking, and damage due to the sticking of the part, the sticking of the flow path, or the traumatic failure, splitting and cracking according to the cracking time. There are mainly the following reasons. 1. Processing…
DetailsAnalysis Of The Causes Of Bubble Formation In Injection Molding Products The gas of the bubble (vacuum bubble) is very thin and belongs to the vacuum bubble. In general, if a bubble is found at the moment of mold opening, it is a gas interference problem. The formation of vacuum bubbles is due to insufficient…
DetailsHow To Control The Moisture Of Plastic Materials Effectively During plastic injection molding, the influence of moisture on quality of plastic material is great, which not only may result in plastic cracks, whitening, air bubble, but also degrades the plastics and decreases the performance. Therefore, it’s necessary to control the moisture of plastic materials in…
DetailsHow To Design The Structural Unit Of Die Casting Mold? There are many steps in die-casting mold forming. How to make the structural unit of die-casting mold? 1.Forming part The parts that make up the cavity include: fixed and movable inserts and cores. 2. Formwork Various formwork, frame and other structural parts. The function is…
DetailsHow To Change The Hardness Of Plastics? 1. The concept and representation of hardness Hardness refers to the ability of a material to resist the pressing of other hard objects into its surface. The magnitude of the hardness value is a conditional quantitative representation of the degree of softness and hardness of the material. It…
DetailsThree Common Polishing Methods For Precision Stamping Dies There are two main purposes for polishing precision stamping dies. One is to increase the brightness and precision of precision molds. The second is to make the mold easy to demould. In the polishing process, the coarse oil stone is generally used first, and the surface of…
Details