產(chǎn)品詳情
POM日本寶理M90-44(M90-45)耐候級
POM日本寶理M90-44(M90-45)耐候級
Delrin加工特性: (1)POM加工前可不用干燥,最好在加工過程中進行預熱(800℃左右),對產(chǎn)品尺寸的穩(wěn)定性有好處. (2)POM的加工溫度很窄(0~215℃),在炮筒內(nèi)停留時間稍長或溫度超過220℃時就會分解,產(chǎn)生刺激性強的甲醛氣體. (3)POM料注塑時保壓壓力要較大(與注射壓力相近),以減少壓力降.螺桿轉(zhuǎn)速不能過高,殘量要少; (4)POM產(chǎn)品收縮率較大,易產(chǎn)生縮水或變形.POM比熱大,模溫高(800~100℃),產(chǎn)品脫模時很燙,需防止燙傷手指. (5)POM宜在“中壓、中速、低料溫、較高模溫”的條件下成型加工,精密制品成型時需用控制模溫 (6)具高機械強度和剛性 (7)最高的疲勞強度 (8)環(huán)境抵抗性、耐有機溶劑性佳 (9)耐反覆沖擊性強,良好的電氣性質(zhì),復原性良好,具自已潤滑性、耐磨性良好,尺寸安定性優(yōu). POM塑料成型條件 1.料筒溫度: 因為POM是結(jié)晶性塑料,熔料在料筒內(nèi)停留時間對于它的含晶核數(shù)量與大小均會產(chǎn)生影響,在其熔點以上的同一溫度下,熔體停留時間越長,晶核數(shù)會下降。料筒溫度通常應控制在150~180℃,溫度不宜過高,太高會導致變色分解,過低則會塑化不均,影響流動性。所以在確保流動性的前提下,盡量采用較低的加工溫度和較短的受熱時間。
另外噴嘴溫度應略低于料筒溫度。 2.模具溫度: 通常模具是影響POM強度的主要因素,模溫高,結(jié)晶時間長,有利于晶體的生長,結(jié)晶較完整,并且流動性會更好。一般情況下,模溫應控制在75~120℃。 3.注射壓力: 注射壓力的大小主要取決于POM的熔融流動性,流道、澆口的厚度和寬度,以及塑料制品的厚度等因素。通常為40~130Mpa,對于厚壁制品,注射壓力可取小值,反之薄壁制品則應取大值。
USES OF POM products: Washer Gasket, sleeve, oil pipe (extrusion POM) , sprayer valve, universal joint bearing, motor gear, silent gear, muffler gear, crankshaft, door handle, dashboard, electrical switch housing, safety belt buckle; Zipper, drive shaft, chain, bearing, cams, impellers, shower heads, guide rails, bushings, hose couplings, socket switches, buttons, relays, TV parts, fax printer parts, washing machine gears and pulleys, washing machine hose couplings, toilet ball cocks, paper rollers, support frames, cages, friction pads, faucet shower stand, bathtub handle, toy, plastic comb, Mascara stick, profile, plate, Bar, profile, wire and cable overlaid, microwave door latch, Fan gear, cosmetic, fastener clip, conveyor belt, roller, car bumper holder, b stabilizer bar, rear-view mirror gear, rear-view mirror adjuster, wiper pivot, combination switch, type D ring, height adjuster, door handle, drive gear, Sun visor hinge cover, b adjuster, water closet, car end cover, filter, automobile water pump motor housing, automobile door lock, shift lever, filling pipe (conductive) , split ring, locking nut, automobile sunshade, b handle, accelerator pedal, massager housing, water meter box housing, cooking pot handle, slide, damper, speaker bracket, sound bracket, speedometer bearings, hooks, insert nuts. Oh, Shit