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POM plastics precautions and advantages
POM plastics precautions and advantages
POM polyoxymethylene (POM) | technology 文章 | Daoqin plastics raw materials
本文 will detailed introductionpolyoxymethylene (POM) （POM）material property can features, application areas and processing process, is material selection and product design provide 参考.
detailed introduction
POM plastics is types in 我们 生 active in tool has application types material. is, for/regarding this 样 一 types material parts, in use is need attention/notes related 事项, from 而 帮助我们 can more good use this plastics.
首先 讲, POM plastics for/regarding ring 境 变化也 is has 敏感, can 够抵御一 material 理 攻击. is outer 线, this type of plastics in for outer conditions lower is has related 变化, 会发生一 裂痕 and other and other. from can very good 进行 工 as.
another, POM plastics heat stabilized property relatively 差. in to temperature degree relatively large 变化 时候会发生一 relatively is obvious 变化. positive is is this 样, this type of material 本身也 is can in ring relatively is poor conditions lower 面发生 related function. therefore, in use this material 时候也 is need attention/notes ring issues, can will this type of material 本身进行 related relatively is material 理 变化.
is, for/regarding this type of material 本身 讲, 我们也 is can to this type of material very more advantages. this type of material tool has very good resistant fatigue strong/high degree 变化, can resistant very more 攻击. and, this type of material in use very easy 复原, for/regarding appearance 变化也 is can 够自己复原.
讲, POM plastics is types can in 我们 生 active in very more important function types material, in 我们 生 active in is has very more application. although has disadvantages and 不足, is its overall advantages is separation strong/high. can by application.
[材 material basic parameters ]
| density | 1.41 g/cm³ |
| melting point | 165~175°C |
| heat deflection temperature (HDT) | 110~124°C |
| tensile strength | 60~70 MPa |
| flexural modulus | 2600~3100 MPa |
| notched impact strength | 70~100 J/m |
| molding shrinkage | 1.8~2.5% |
| friction coefficient | 0.1~0.3 |
core advantages
- excellent machine strong/high degree: tensile strength 60-70MPa, is thermoplastic property plastics in force property can most excellent material 之一
- color wear resistance and lubricated property: friction coefficient low 至0.1-0.3, is manufacturing gears and bearings 理想材 material
- high rigidity: flexural modulus can 达2600-3100MPa, dimensional stability good
- excellent fatigue resistance: in 反复应 force function lower still can maintain good force property can
- good chemical resistance: for has machine solvent agent, type, material has excellent 良 抵 resistant can force
- excellent dimensional stability: water absorption low, in wet ring in property can small
application areas
gears, strip/profile, 凸轮, bearings, sleeve/set, strip/profile
门锁, rise drop device, safety belt/tape 扣, 燃油泵组 parts
开关, electrical appliances, connectors, 卡扣, 键盘按键
拉链, machine, frame, toys parts
阀门, water leading, 淋浴喷头, pipeline parts
injection molding processing process
- drying 处理: POM water absorption relatively low, generally 80°C drying 3-4 small can
- material temperature degree: 180~220°C（ homopolymer POM偏 high, copolymer POM偏 low ）
- mold temperature degree: 60~120°C（ high mold temperature can obtain more good crystallization degree and surface quality ）
- injection pressure: 70~120 MPa
- injection speed degree: in and other to fast speed
- precautions: POM heat stabilized property 差, material temperature degree ultra- 240°C, machine front must use PE清洗
above inner 容由Daoqin plastics raw materials has companytechnology 部整理 editor | 如需 understanding more more POM polyoxymethylene (POM) material 信息, electrical inquiry
联系 electrical 话: 19279864570（ micro 信同号）
