Shanghai Daoqin Plastics Co., Ltd.

POM resin material is as is polymer/macromolecule heavy mono 位（ mono mono 位）, has aldehyde 基（-CH2O-） crystallization property resin, can separation is mono formed homopolymer type, and 以甲基-甲 aldehyde 基（-CH2 CH2O-） as is copolymer mono 体（ copolymer use mono 体） mono make its copolymer type types structure. generally 说市面 upper use pom basic is homopolymer pom polyoxymethylene (POM).

一, POM材 material features

1, mechanical properties

pom polyoxymethylene (POM) tool has excellent tensile strength, flexural strength, impact strong/high degree, rigid property and elastic property. but also in temperature degree scope/range inner, pom still maintain high rigidity. it is most combined substitute/replace metal combined formed resin.

2, fatigue resistance, elastic property and creep resistance

for/regarding long 期 反复应 force tool has excellent fatigue resistance and elastic property KEPITAL- and various gears type, sheet/plate elastic type, elastic property elastic 簧, 偏心轮, tool parts and other structure parts 一起, in 反复应 force, bending, impact, and other conditions lower still tool has resistant fatigue features. pom polyoxymethylene (POM) ratio its it plastics tool has more add excellent resistant fatigue features, it is used for to 反复应 force parts upper most combined material.

3, wear resistant loss property

resistant scratch abrasion loss property and fatigue resistance, creep resistance is pom key features 之一.

4, resistant gas property

in outer or has outer by use 时, non conditions, use standards grade can meet/satisfy requirements. if need 经常处于极端 ring temperature degree in, recommendation use resistant gas grade.

5, dimensional stability

pom材 material molding product tool has in normal temperature lower long use can 维持极 high dimensional stability features. molding rear shrinkage, according to its mold temperature degree has 差异. process 1-2 small 时开始至2-3天之 inner formed. shrinkage rear in normal temperature lower 放置一 year above, its dimensions basic 不变. therefore can used for density requirements high parts upper. another, in low temperature degree and wet ring in, dimensions 变化极 small.

二, pom材 material classification

按 applications separation is: grade pom, reinforced grade pom, resistant impact grade pom, weather resistant grade pom, resistant scratch grade pom, conductive grade pom, anti-static grade pom and lof grade pom and other.

三, pom材 material applications.

pom材 material most combined gears, bearings, toward 轮, slip and other requirements resistant scratch abrasion loss property machine can parts applications. in conditions lower, can excellent resistant property. general purpose can used for electrical, electronics, office 自动化, automotive parts and other field/area.

四, pom材 material processing molding conditions

1, drying: 80～90℃ × 3～4 small 时

2, resin temperature degree: 190～210℃

3, mold temperature degree: 60～80℃

4, injection pressure 50～100MPa

5, injection speed degree 5～50mm/s （0.3～3m/min） screw 转数 100～150rpm
五, pom材 material Brand recommendation

1, KEP pom材 material

      2, USA DuPont pom材 material

     3, Polyplastics pom材 material

六, precautions

1, is 避免材 material separation understanding, lower resin temperature degree and material inner time setting. resin temperature degree: 190～210℃ (请勿 add hot to 250℃ above.)

2, molding in 断时, 请置换 material inner material, reduce material temperature degree. if hot or hot phenomenon 时, reduce material temperature degree, use new material hot material. 此时, will 置换出 熔化 material water in cooling, made gas dispersion 发. and, 置换时请戴 good anti 护眼镜 and sleeve/set, will or 脸靠近喷头 front 端. chlorine ethylene and other chlorine material or has and other flame resistant formed separation material promote POM材 material separation understanding, therefore, need will it 们共同放入 material inner.

3, due to aldehyde gas 体会刺激眼睛 and 喉咙, make to 不舒服, long 期吸入 ultra- 一定 concentrated degree gas for 身体不利.  建议 as maintain local or overall 通风.

4, in upper material has can can make 人摔倒, and remove.