Shanghai Daoqin Plastics Co., Ltd.

        【 in in 线讯】 mold manufacturing generally need 经 锻造, processing, hot and other 几道工序. is ensure mold manufacturing quality, reduce production cost, its material tool has good can property, processing property, hard property, property and can abrasion property; also tool has small oxidation, carbon property and deformation cracking toward.

        1. property

        淬透 property is in conditions lower use Sample 淬透层 deep degree and hardness distribution table/sheet 征 材 material 特征, it main/primary 取决于材 material 临界淬火 cold speed large small. in conditions lower, 决定钢材淬 hard deep degree and hardness distribution features. 即钢淬火时 to hard deep degree large small can force, it table/sheet 示钢接受淬火 can force. 钢材淬透 property good and 差, commonly used hard deep degree table/sheet 示. hard deep degree large, 则钢 淬透 property good. 钢 淬透 property is 钢材本身 solid has property, it 取决于 its internal factors, and external factors 无关. 钢 淬透 property main/primary 取决于 it chemical formed separation, especially is increase large property alloy and degree, add hot temperature degree and temperature time and other factors has 关. property good 钢材, can make parts 整 截面 obtain uniform force property can and can selection parts 淬火应 force small agent, decrease/reduce deformation and cracking.

        2. oxidation,

         oxidation: 狭义, oxygen and other material 质元素发生 chemical reaction, its is oxidation, is types important chemical industry mono process. oxidation, material electronics (oxidation rise high) process,

        人 new 陈代谢也像 is oxidation function, 亦即人体每天都 in 生锈, generate iron in 医学里就叫自由基. 自由基 is types belt/tape has for electronics pellets. is belt/tape has mono electronics, therefore non unstable, tool has high degree chemical reaction property, very easy and separation reaction, make separation 子也变 formed 自由基. 如此一 again heavy 复, 就会衍生 a large amount of 自由基. 自由基 non active 跃, non 常不安 separation. 就象我们人 type in 不甘寂寞 mono 身汉一样, if 总也找不 to 理想 伴侣, can can formed is 社会不安定 factors.

         generally lower, is 离不开自由基 active 动. 我们 身体每时每刻都 from to outer 运动, 每一瞬间都 in can amount, negative 责传递 can amount 搬运工就 is 自由基. this can amount 转换 自由基 by in fine 胞里不 can 乱跑乱窜时, it for is 无害. if 自由基 active control, ultra- 一定 amount, positive 常秩序就会 by bad, can can 就会随之而.

         therefore 说自由基 is di 刃剑. already has many 疾病皆肇因于自由基 as 祟, type wet property 关节炎, property 呼吸窘迫症候群, 艾滋病以 and 牙周病 and other. 自由基 remove for fine generate outer, most poor in can 发动自由基连锁 reaction, 进一步恶化, 伤害体 inner 组织. this type of reaction versus 当惊人: positive chemical material 质系由原子 and separation formed 且需携 belt/tape formed for electronics chemical 状态 安定;而自由基即 is has formed for electronics separation or 原子, therefore it must its it separation or electronics for, can it property, maintain 安定. however, if 自由基豪夺 for is 蛋白质, carbon water combined material, type, and other 人体必 must material 质, this electronics formed separation, not only is oxidation 而面目 full non, more 会进一步 utilizing its 自由基 new separation, again its it electronics 由此形 formed property ring 自由基连锁 reaction;人体 function therefore loss bad.

        3, carbon property

        decarbonization一 types gas process, remove mixed combined gas in oxidation carbon, main/primary combined formed production raw materials gas or gas 处理. remove raw materials gas in oxidation carbon methods, separation is 3 type.

        (1) material absorption method most using/adopting add pressure water remove oxidation carbon, decrease pressure will water recycled. method equipment simple, remove oxidation carbon degree 差, export oxidation carbon generally in 2%(体积) below/following, force consumption high. 近20 year development has alcohol method, carbon acid propylene ester method, poly ethylene glycol ether method and other, and add pressure water carbon method versus ratio, it tool has degree high, can consumption low, recycling oxidation carbon pure degree high and other advantages, but also also can selection property remove hydrogen, is industrial upper using/adopting carbon methods.

        (2) chemical absorption method tool has absorption good, recycled easy, meanwhile also can 脱硫化 hydrogen and other advantages. main/primary methods has alcohol amine method and catalytic hot alkali method. rear carbon reaction is:

        K2CO3+CO2+H2O=2KHCO3

         is improve/increase oxidation carbon absorption and recycled speed degree, can in carbon acid solvent liquid in add certain machine or has machine material as active agent, add 入缓蚀 agent reduce solvent liquid for equipment 腐蚀. its in industrial upper application methods (table/sheet 5—9) has multiple.

        3.切削 processing property

        切削 processing property (can property, machine processing property): metal material by tool processing rear formed is combined parts difficult easy degree. processing property good bad commonly used processing rear parts surface coarse degree, 允许 切削 speed degree and tool abrasion loss degree amount. it and metal material chemical formed separation, force property can, thermally conductive property and processing hard degree and other more factors has 关. commonly used hardness and tough property as processing property good bad large 致判断. generally 讲, metal material hardness high difficult 切削, hardness high, tough property large, 切削也 relatively difficult. generally non iron metal (has color metal) ratio iron metal processing property good, iron ratio good.

        4. process property

        退火 is types metal hot process, is will metal slow add hot to temperature degree, maintain time, rear 以适宜 speed degree cooling. is reduce hardness, improvement processing property;消 remove residual stress, stability dimensions, decrease/reduce deformation and cracks toward; fine 化晶粒, adjustment 组织, remove defect. 准确 说, is types for material hot process, metal material, non metal material. but also new material 退火目 也 and metal 退火存 in 异同.

        5.淬 hard property

        钢 in rear obtain hardness can force, 取决于M in WC%. 钢 淬透 property and hard property is types full different concept. 钢 淬 hard property is in conditions lower can to most high hardness can force, it main/primary 取决于马氏体 carbon content. property good 钢, its hard property 不一定 high. low carbon alloy 钢 淬透 property versus good, it hard property high, again high carbon tool 钢 淬透 property relatively 差, its hard property high.

        6. can property

         metal tool has thermoplastic property, in add hot 状态(various metal requirements temperature degree different), can pressure processing, is tool has can property. metal material in pressure processing 时, can deformation 状而不 generate cracks property can. it in hot or cold lower can 够进行锤锻, made, tensile, pressure and other processing. can property good bad main/primary and metal material chemical formed separation has 关.

         metal material in pressure processing in can 承受塑 property deformation 而不破裂 property can, process property. can property indicators commonly used metal material in 一定塑 property deformation methods lower surface 开始出现 cracks deformation amount table/sheet 示, this deformation amount is deformation amount. various pressure processing deformation methods different, table/sheet can property indicators different. coarse pressure shrink rate table/sheet 示,延伸以 elongation or shrink small rate table/sheet 示, 扭转以扭角 table/sheet 示.

        7.淬火 deformation cracking toward

        常规淬火体积变化 small, warpage, light micro, deformation toward low. 常规淬火 cracking property low, for temperature degree and parts 形状不敏感.

        8. can abrasion property

        砂轮 versus for loss consumption small, 无烧伤极限 abrasion use amount large, for quality and cooling conditions 不敏感, easy abrasion and abrasion cracks.