{"id":191,"date":"2026-02-28T01:45:31","date_gmt":"2026-02-28T01:45:31","guid":{"rendered":"https:\/\/www.wudejiansteel.com\/?p=191"},"modified":"2026-05-09T07:18:13","modified_gmt":"2026-05-09T07:18:13","slug":"how-to-solve-the-problem-of-easily-collapsing-and-sinking-at-the-inlet-position-when-using-skd61-with-30-nylon-fiber","status":"publish","type":"post","link":"https:\/\/www.wudejiansteel.com\/?p=191","title":{"rendered":"How to solve the problem of easily collapsing and sinking at the inlet position when using SKD61 with 30% nylon fiber?"},"content":{"rendered":"\n

Question from a netizen in the 286th live broadcast room: How to solve the problem of easily collapsing and sinking at the water inlet position when using SKD61 with 30% nylon fiber?<\/p>\n\n\n\n

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Nylon reinforced plastic with 30% fibers has a very serious erosion effect on the mold, and it is necessary to use mold steel with good wear resistance to prevent the mold from being eroded.<\/p>\n\n\n\n

SKD61 is a medium carbon hot work die steel made of 4Cr5MoSiV1 with a carbon C content of 0.38%. It has good toughness, but its hardness of 50HRC is too low and its wear resistance is poor. It cannot resist the erosion of the mold by the 30% reinforced glass fiber. Using it as a feed inlet is prone to collapse and enlargement.<\/p>\n\n\n\n

I recommend LG mold steel, which has both toughness and wear resistance, as well as the material used for the feed inlet based on successful case experience.<\/p>\n\n\n\n

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LG is a high toughness die steel<\/a><\/strong> exclusively developed by Yuhui Company. LG’s toughness is 8-9 times that of DC53, with a hardness of 54-58HRC. Its toughness is so good that it does not break even when bent. A loyal customer from Shenzhen said, “Last time I used LG’s material to make injection molded ports with 30% glass fiber nylon, it was really easy to use<\/p>\n