Shanghai Daoqin Plastics Co., Ltd.

         mold processing material selection is non important, if 材质不够 excellent 越 话,研 made 出 工 parts property can good to 哪里. mold processing material selection must meet/satisfy large as conditions requirements:

        1, wear resistance material in mold type in property property 时,沿 type surface flow also sliding, make type surface and material generate 剧烈 摩 scratch, from 而导致 mold abrasion loss 而失效. therefore material wear resistance is mold most basic, most important property can 之一. hardness is effect/influence wear resistance main/primary factors. generally lower, mold parts hardness high, abrasion loss amount small, wear resistance good. another, wear resistance also and material in carbon material types type, amount, 形态, large small and distribution has 关.

        2, strong/high tough property mold as conditions large more separation poor, has 常承受 relatively large impact negative 荷, from 而导致脆 property fracture. is anti mold parts in as 时突然脆断, mold need tool has relatively high strong/high degree and tough property. mold tough property main/primary 取决于材 material carbon amount, degree and 组织状态.

        3, fatigue fracture property can mold as process in, in ring force long function lower,往往导致 fatigue fracture. its has small can amount more impact fatigue fracture, tensile fatigue fracture fatigue fracture and bending fatigue fracture. mold fatigue fracture property can main/primary 取决于 its strong/high degree, tough property, hardness, and material in material content.

        4, high temperature property can mold as temperature degree relatively high 进,会 make hardness and strong/high degree decline,导致 mold abrasion loss or generate property deformation 而失效. therefore, mold material tool has relatively high resistant stability property,以 ensure mold in as temperature degree lower, tool has relatively high hardness and strong/high degree.

        5, resistant cold hot fatigue property can has mold in as process in 处于反复 add hot and cooling 状态, make type surface 受拉, pressure force function,引起 surface crazing and 剥落, increase large scratch force, retardant property deformation, reduce dimensions degree, from 而导致 mold 失效. cold hot fatigue is hot as mold main/primary 形式之一,帮 this category of mold tool has relatively high resistant cold hot fatigue property can.

        6, resistant property has mold plastics in as 时, due to plastics in in chlorine, fluorine and other 元素,受 hot rear separation analysis 出HCI, HF and other strong/high property gas 体,侵蚀 mold type surface, add large its surface coarse degree, add abrasion loss 失效.