Shanghai Daoqin Plastics Co., Ltd.

        第一点: wear resistance

        坯 material in mold type in property property 时, type outer table/sheet active also sliding, make type outer table/sheet and material 间发生剧烈 冲突, rear mold abrasion loss 而失效. therefore material wear resistance is mold most basic, most important function 之一.

         hardness is effect/influence wear resistance need factors. generally lower, mold parts hardness high, abrasion loss amount small, wear resistance good. 别, wear resistance also and in carbon material types type, amount, 形状, fine and dispersion has 关.

        第二点: strong/high resistant property

         mold as conditions large more separation poor, has 常承受 relatively large impact negative 荷, rear 导致脆 property cracking. is mold parts in as 业时俄然脆断, mold need tool has relatively high strong/high degree and resistant property.

         mold resistant property need 取决于资 material carbon amount, degree and 组织状态.

        第三点: cracking function

         mold as process in, in ring force long time function lower, 往往导致疲惫 cracking. its methods has small can amount impact cracking, tensile cracking 触摸疲惫 cracking and 曲折疲惫 cracking.

         mold cracking function need 取决于 its strong/high degree, resistant property, hardness, and in material content.

        第四点: high temperature function

        当 mold as temperature degree relatively high 进, make hardness and strong/high degree decline, mold front abrasion loss or 发生塑 property deformation 而失效. mold material tool has relatively high resistant stability property, ensure mold in as temperature degree lower, tool has relatively high hardness and strong/high degree.

        第五点: resistant cold hot function

         has mold in as process in 处于反复 add hot and cooling 状态, make type outer table/sheet 受拉, pressure force function, outer table/sheet crazing and 脱落, increase large force, retardant property deformation, reduce degree degree, rear mold 失效. cold hot is hot as mold 失效 首 need methods 之一, this category of mold tool has relatively high resistant cold hot function.

        第六点: resistant property

         has mold plastics in as 业时, is in in chlorine, fluorine and other 元素, hot rear separation understanding separation 出hci, hf and other strong/high property gas 体, mold type outer table/sheet, add large its outer table/sheet coarse degree, add abrasion loss 失效.