KOCETAL? GB304
Technical Datasheet | Supplied by Kolon Plastics (Kolon Industries)
KOCETAL? GB304 by Kolon Plastics (Kolon Industries) is a polyacetal polyoxymethylene grade reinforced with (<25)% glass bead. Exhibits high mechanical strength & durability and good dimensional stability. Provides heat-, friction-, fatigue-, creep-, alkali-, wear-, abrasion and weather resistance. Is resistant to chemicals such as window washing agent, antifreeze, gasoline and diesel oil. Possesses good toughness, high stiffness, rigidity and crystallinity. Shows less change in mechanical properties than nylon and PBT over (50-80)°C temperature. Is suitable for processing by injection molding. KOCETAL? GB304 by Kolon Plastics (Kolon Industries) is recommended for automotive, electrical/electronics, agriculture and buildings & constructions industries. Complies with ISO 9001, ISO/TS 16949, ISO 14001 and KS I 7001/7002 certificates.
物理性能 | 额定值 |
单位制 |
测试方法 |
密度 / 比重 |
ASTM D792 | ||
熔流率(熔体流动速率) (190°C/2.16 kg) |
g/10 min |
ASTM D1238 | |
收缩率 - 流动 |
in/in |
ASTM D955 | |
吸水率 (平衡, 73°F, 60% RH) |
% |
ASTM D570 | |
机械性能 | 额定值 |
单位制 |
测试方法 |
抗张强度 (73°F) |
psi |
ASTM D638 | |
伸长率 (断裂, 73°F) |
% |
ASTM D638 | |
弯曲模量 (73°F) |
psi |
ASTM D790 | |
弯曲强度 (73°F) |
psi |
ASTM D790 | |
冲击性能 | 额定值 |
单位制 |
测试方法 |
悬壁梁缺口冲击强度 (73°F) |
ft·lb/in |
ASTM D256 |
POM KOCETAL GB304 可提供COA、COC,ROHS.MSDS.UL黄卡等等资料,价格最优,质量保证!
特点
(1)POM加工前可不用干燥,最好在加工过程中进行预热(80℃左右),对产品尺寸的稳定性有好处.
(2) POM的加工温度很窄(0~215℃),在炮筒内停留时间稍长或温度超过220℃时就会分解,产生刺激性强的甲醛气体.
(3) POM料注塑时保压压力要较大(与注射压力相近),以减少压力降.螺杆转速不能过高,残量要少;
(4) POM产品收缩率较大,易产生缩水或变形.POM比热大,模温高(80~100℃),产品脱模时很烫,需防止烫伤手指.
(5) POM宜在“中压、中速、低料温、较高模温”的条件下成型加工,精密制品成型时需用控制模温
(6)具高机械强度和刚性
(7)最高的疲劳强度
(8)环境抵抗性、耐有机溶剂性佳
(9)耐反覆冲击性强,良好的电气性质,复原性良好,具自已润滑性、耐磨性良好,尺寸安定性优.
应用
.可代替大部分有色金属、汽车、机床、仪表内件、轴承、紧固件、齿轮、弹簧片、管道、运输带配件、电水煲、泵壳、沥水器、水龙头等.