博文

目前显示的是 五月, 2020的博文

Causes of Warping and Deformation of Injection Products

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Warping is one of the common defects of plastic products because the shape of the   custom plastic injection profiles  deviates from the shape of the mold cavity. There are many reasons for the warping deformation, which cannot be solved by the process parameters alone. The following is a brief analysis of the factors affecting the warping deformation of injection products. 1. The effect of mold structure on warpage of products. In terms of molds, the main factors affecting the deformation of  plastic injection profiles  are the pouring system, cooling system and ejection system. Gating system. The position, form, and quantity of the gate of the injection mold will affect the filling state of the plastic in the mold cavity, resulting in deformation of the plastic product. The longer the melt flow distance, the greater the internal stress caused by the flow and shrinkage between the frozen layer and the central flow layer; the shorter the flow distance, th...

What Is the Difference between Pvc Electrical Conduit and Plastic Electrical Conduit?

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PVC electrical conduit is most commonly used in the current decoration, so if you are not clear about the difference between PVC electrical conduit and aluminum plastic electrical conduit, please see the introduction below. In the decoration process, PVC electrical conduits and aluminum-plastic electrical conduits are more common pipes, and many times do not know how to choose. So what is the difference between PVC electrical conduit and aluminum-plastic electrical conduit? Before introducing the differences between PVC electrical conduit and aluminum-plastic electrical conduit, we first need to understand what is PVC electrical conduit and what is aluminum-plastic electrical conduit. The following  custom plastic cable pipe suppliers  share with you: 1, PVC electric wire pipe (PVC-U pipe) rigid polyvinyl chloride pipe, is made of polyvinyl chloride resin and stabilizers, lubricants and other hot extrusion method after extrusion molding, is an aluminum plastic pipe that has...

Analysis of Cracks And Fractures Of Bellows

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From the macroscopic morphology observation and chemical composition analysis results, we know that no metallurgical defects such as slag inclusions, pores, and porosity were found around the corrugated tube cracks; the chemical composition of the corrugated tube complies with the standard requirements. The sensitization temperature range of austenitic stainless steel is 450 ~ 850 ° C. In this temperature range, chromium elements are likely to be enriched near the grain boundaries to form M23C6 type carbides, which causes a chromium-depleted region near the grain boundaries, which makes The corrosion resistance decreases sharply, and intergranular corrosion occurs under the action of corrosive media. Studies have shown that the annealing temperature of Inconel 800 alloy is in the range of 550 ~ 800 ℃. As the annealing temperature increases, the sensitization first increases and then decreases. The working temperature of the failed bellows is about 500 ℃, which is close to the sensitiz...