塑料制品应注意材料收缩率--东莞市瑞福祥塑胶原料商行

塑料制品应注意材料收缩率

最近，余姚某喷雾器企业生产出口到埃及的1批价值2万多美元的塑料手泵因按压处零部件容易脱落，无奈退运回国内进行返工整理。

宁波余姚检验检疫局随即按照进境返修货物流程要求，对该批货物进行了情况调查。经现场调查发现，退货具体原因是企业在制造塑料手泵的注塑过程中没有仔细考虑到塑料材质收缩率，导致产品零部件尺寸不符，产品上下部分弹开分离，影响产品使用。

塑料的收缩率是指塑料制件在成型温度下尺寸与从模具中取出冷却至室温后尺寸之差的百分比。它反映的是塑料制件从模具中取出冷却后尺寸缩减的程度。任何塑料制品都有一定的尺寸要求，在使用或安装中有配合要求的塑料制品，其尺寸精度要求较高。设计模具所估计的塑料收缩率与实际收缩率的差异和生产制品时收缩率的波动值，都会影响塑料制品的尺寸精度。其次塑料的收缩率还与塑件的形状、内部结构的复杂程度、是否有嵌件等有很大的关系。此外，模具型腔在使用过程中不断磨损，使得同一模具在新和旧的时候所生产的制品尺寸各不相同。模具成型零件安装尺寸、配合间隙的变化，这些都将影响塑件的公差。

为此，建议相关出口企业：如果是挤出或注塑的制品收缩问题，就应该从模具方面增加相应的余量;如果是原料的收缩率大，可以采用加入玻纤改性来降低原料自有的收缩率大的问题;如果是制品收缩不均匀影响外观，就应该在制品的厚度分布结构方面考虑解决。在模具设计中必须采取对模具加热或冷却的温度控制措施，且为了使模具各型腔间的温差尽量缩小，同时必须注意温控至冷却回路的设计。

塑胶原料供应：

塑料品名	塑料型号
销售热线：13528694940 张先生在线QQ：813986068 E-mail：sales@rfxsj.com 企业网址：http://www.rfxsj.com
(PBT+PC)-GF20	Pocan KU 1-7625
(PBT+PC)-GF20	Valox VX5022
(PBT+PC)-GF20	Valox VX5022H
(PBT+PC)-GF30	LUPOX HI2303
(PBT+PC)-GF30	LUPOX LW5303
(PBT+PC)-GF30	LUPOX LW5303F
(PBT+PC)-GF30	Pocan C 3230 XF
(PBT+PC)-GF30	Pocan KU 1-7635
(PBT+PC)-GF30	Pocan KU 1-7635 POS151
(PBT+PC)-GF30 FR	Arnite TV4 660 SN
(PBT+PC)-GF40	LUPOX LW5402A
(PBT+PC)-GX11	Xenoy 1760
(PBT+PC)-GX11	Xenoy 1760E
(PBT+PC)-GX30	Valox 508
(PBT+PC)-GX30	Valox 508R
(PBT+PC)-GX30	Valox 553
(PBT+PC)-GX30	Xenoy 6370
(PBT+PC)-GX32	Remex VR5460
(PBT+PC)-I	Makroblend S7916
(PBT+PC)-MF30	LUPOX LW5300M
(PBT+PC)-MX	Xenoy X6320
(PBT+PC)-MX15	Xenoy XD1647
(PBT+PC)-X	Thermocomp 9X02841
(PBT+PET)-(CF+GF)	Stat-kon WEF42
(PBT+PET)-(GF+MD)25 FR(17)	Arnite TZ4 254 S
(PBT+PET)-(GF+MD)40	Pocan T 7141
(PBT+PET)-(GF+MF)40	KEPEX® 3740GM7
(PBT+PET)-GF	Thermocomp WF007
(PBT+PET)-GF15	CompaDur® 125 GF 15 black (042)
(PBT+PET)-GF15	CompaDur® 125 GF 15 black (043)
(PBT+PET)-GF15	KEPEX® 3715GF
(PBT+PET)-GF15	LUPOX SG-5152
(PBT+PET)-GF15	LUPOX SG5150
(PBT+PET)-GF15	Pocan ECO T 3215
(PBT+PET)-GF15	Pocan KU 1-7313
(PBT+PET)-GF15	SCHULADUR PCR GF 15 K1947
(PBT+PET)-GF15	Tarolox 2050 W G3
(PBT+PET)-GF15	TechnoDur PBT/PET GF 15 black (9970)
(PBT+PET)-GF15	TechnoDur PBT/PET GF 15 black (9971)
(PBT+PET)-GF15	Tecodur PB70 GR15 BK002 XA21
(PBT+PET)-GF15	Tecodur PB70 GR15 NL100 KA01
(PBT+PET)-GF15	Valox ENH8530
(PBT+PET)-GF20	Arnite TV4 441
(PBT+PET)-GF20	CompaDur® 125 GF 20 black (044)
(PBT+PET)-GF20	CompaDur® 125 GF 20 black (045)
(PBT+PET)-GF20	LUPOX SG5200
(PBT+PET)-GF20	Pocan ECO T 3220
(PBT+PET)-GF20	Pocan T 7323
(PBT+PET)-GF20	Pocan T 7323 POS151
(PBT+PET)-GF20	Pocan TS 3220
(PBT+PET)-GF20	Pocan TS 3221
(PBT+PET)-GF20	Tarolox 2050 W G4
(PBT+PET)-GF20	TechnoDur PBT/PET GF 20 black (9967)
(PBT+PET)-GF20	TechnoDur PBT/PET GF 20 black (9968)
(PBT+PET)-GF20	Tecodur PB70 GR20 BK002 TD21
(PBT+PET)-GF20	Ultradur B 4040 G4
(PBT+PET)-GF20	Ultradur B 4406 G4 Q113
(PBT+PET)-GF20...	SCHULADUR PCR GF 20
(PBT+PET)-GF30	Arnite TV4 460 KL
(PBT+PET)-GF30	Arnite TV4 461
(PBT+PET)-GF30	Arnite TV4 461 KL
(PBT+PET)-GF30	BESTDUR TPHG6 /01
(PBT+PET)-GF30	BESTDUR TPHG6 /02
(PBT+PET)-GF30	BESTDUR TPXG6 /02
(PBT+PET)-GF30	CompaDur® 125 GF 30 black (047)
(PBT+PET)-GF30	Deniter E 3010
(PBT+PET)-GF30	Deniter E 3010
(PBT+PET)-GF30	EPIMIX PBT-PET GV0 30 NC Q1D001
(PBT+PET)-GF30	EPIMIX PBT/PET GFR 30 NC
(PBT+PET)-GF30	LUPOX SG5300
(PBT+PET)-GF30	Pocan DP 4035
(PBT+PET)-GF30	Pocan ECO T 3230
(PBT+PET)-GF30	Pocan T 7331
(PBT+PET)-GF30	Pocan T 7331 POS151
(PBT+PET)-GF30	Tarolox 2050 W G6
(PBT+PET)-GF30	TechnoDur PBT/PET GF 30 black (9964)
(PBT+PET)-GF30	TechnoDur PBT/PET GF 30 black (9965)
(PBT+PET)-GF30	Tecodur PB70 GR30 NL100 HT01
(PBT+PET)-GF30	TEREZ PBT/PET Blend 7100 GF 30
(PBT+PET)-GF30	Ultradur B 4040 G6
(PBT+PET)-GF30	Ultradur B 4040 G6 High Speed
(PBT+PET)-GF30	Ultradur B 4406 G6 Q113
(PBT+PET)-GF30	Valox 8032UX
(PBT+PET)-GF30	Valox ENH8560
(PBT+PET)-GF30	Valox VX8532
(PBT+PET)-GF30	VYPET VNT 230
(PBT+PET)-GF30...	SCHULADUR PCR GF 30
(PBT+PET)-GF30...	SCHULADUR A1 GF 30 LW
(PBT+PET)-GF35	Tecodur PB70 GR35 NL100 HS01
(PBT+PET)-GF40	ASTADUR邃｢ B4040G8UV
(PBT+PET)-GF45	CompaDur® 125 GF 45 black (048)
(PBT+PET)-GF45	Pocan ECO T 3240
(PBT+PET)-GF45	Pocan T 7391
(PBT+PET)-GF45	Pocan T 7391 POS151
(PBT+PET)-GF45	Tarolox 2050 W G9
(PBT+PET)-GF45	Tecodur PB70 GR45 NL100 HS01
(PBT+PET)-GF45	VYPET VNT 245
(PBT+PET)-GF45...	SCHULADUR PCR GF 45
(PBT+PET)-GF50	Arnite TV4 491
(PBT+PET)-GF50	LUPOX SG5500
(PBT+PET)-GF50	SCHULADUR A1 GF 50
(PBT+PET)-GF50	Tecodur PB70 GR50 BK002 CA01
(PBT+PET)-GF50	Tecodur PB70 GR50 BK009 MX01
(PBT+PET)-GF50	Ultradur B 4040 G10
(PBT+PET)-GF50	Valox V8090
(PBT+PET)-GF55	Pocan T 3150 XF
(PBT+PET)-GX	Valox V8030CS
(PBT+PET)-GX15	Valox 815UX
(PBT+PET)-GX15	Valox 815F
(PBT+PET)-GX15	Valox CS815
(PBT+PET)-GX30	Valox 830F
(PBT+PET)-GX40	Valox V8280SF
(PBT+PET)-GX40	Valox V8280
(PBT+PET)-MD20	Arnite BM4 240
(PBT+PET)-MD20	Arnite TM4 440
(PBT+PET)-MF18	LUPOX SG3180S
(PBT+PET)-MF25	KEPEX® 3725M7
(PBT+PET)-MF25	LUPOX SG3250
(PBT+PET)-MF25	LUPOX SG3250A
(PBT+PET)-MF25	LUPOX SG3250M
(PBT+PET)-MX	Valox EH7020HF
(PBT+PET)-MX	Valox EH7020LD
(PBT+PET)-MX	Valox EH7025AG
(PBT+PET+PC)-(GX+MX)30	Valox VR950G30
(PBT+PET+PC)-(GX+MX)30	Valox VR960G30
(PBT+PTFE)	ALCOM PBT 700/1 PTFE20
(PBT+PTFE)	LATILUB 75/4-20T
(PBT+PTFE)	Lubricomp WL002
(PBT+PTFE)	Lubricomp WL0049
(PBT+PTFE)	Lubricomp WL0049XF
(PBT+PTFE)	Lubricomp WL003
(PBT+PTFE)	Lubricomp WL004
(PBT+PTFE)	RTP 1000 TFE 10
(PBT+PTFE)	RTP 1000 TFE 10 FR A
(PBT+PTFE)	RTP 1000 TFE 10 Z
(PBT+PTFE)	RTP 1000 TFE 15
(PBT+PTFE)	RTP 1000 TFE 15 Z
(PBT+PTFE)	RTP 1000 TFE 20
(PBT+PTFE)	RTP 1000 TFE 20 HB
(PBT+PTFE)	RTP 1000 TFE 5
(PBT+PTFE)	RTP 1000 TFE 5 HB
(PBT+PTFE)	Tecodur PB70 NL RT
(PBT+PTFE)	Tribocomp PBT TS0
(PBT+PTFE)	Tribocomp PBT TS7
(PBT+PTFE)-AF	Lubricomp WAL34I
(PBT+PTFE)-AF	Lubricomp WAL34
(PBT+PTFE)-AF10	Tribocomp PBT AF10 TS0
(PBT+PTFE)-CF	ALCOM PBT 700/1.1 CF20 PTFE15
(PBT+PTFE)-CF	Lubricomp WCL36
(PBT+PTFE)-CF10	RTP 1081 TFE 10
(PBT+PTFE)-CF15	RTP 1082 TFE 15
(PBT+PTFE)-CF25	RTP 1084 TFE 15
(PBT+PTFE)-CF30	RTP 1085 TFE 15
(PBT+PTFE)-CF30	Tribocomp PBT CF30 TS0
(PBT+PTFE)-GB	Lubricomp WBL36L
(PBT+PTFE)-GB15	RTP 1001 GB 15 TFE 5
(PBT+PTFE)-GF	Lubricomp WFL32
(PBT+PTFE)-GF	Lubricomp WFL33
(PBT+PTFE)-GF	Lubricomp WFL369
(PBT+PTFE)-GF	Lubricomp WFL34
(PBT+PTFE)-GF	Lubricomp WFL34H
(PBT+PTFE)-GF	Lubricomp WFL36
(PBT+PTFE)-GF	LUBRILON 432
(PBT+PTFE)-GF...	ALCOM PBT 700/1 GF30 PTFE15 Si2
(PBT+PTFE)-GF10	RTP 1001 TFE 15 Z
(PBT+PTFE)-GF15	ALCOM PBT 700/1.5 GF15 PTFE15
(PBT+PTFE)-GF15	ALCOM PBT 700/1.5 GF15 PTFE15 HR
(PBT+PTFE)-GF15	ALCOM PBT 700/8 GF15 PTFE15
(PBT+PTFE)-GF15	RTP 1002 TFE 10
(PBT+PTFE)-GF15	RTP 1002 TFE 15
(PBT+PTFE)-GF15	RTP 1002 TFE 15 SI 2
(PBT+PTFE)-GF15	RTP 1002 TFE 15 Z
(PBT+PTFE)-GF15	Tecodur PB70 GR15 NL RT
(PBT+PTFE)-GF20	ALCOM PBT 700/1 GF20 PTFE15
(PBT+PTFE)-GF20	Denilub B 20G 3TF
(PBT+PTFE)-GF20	RTP 1003 TFE 15
(PBT+PTFE)-GF30	ALCOM PBT 700/1 GF30 PTFE15
(PBT+PTFE)-GF30	RTP 1005 TFE 10
(PBT+PTFE)-GF30	RTP 1005 TFE 15
(PBT+PTFE)-GF30	RTP 1005 TFE 15 FR A
(PBT+PTFE)-GF30	RTP 1005 TFE 15 Z
(PBT+PTFE)-GF30	RTP 1005 TFE 20
(PBT+PTFE)-GF30	RTP 1005 TFE 5
(PBT+PTFE)-GF30	Tribocomp PBT GF30 TS0
(PBT+PTFE)-GF40	RTP 1007 TFE 10
(PBT+PTFE+SI)	Lubricomp WP004
(PBT+PTFE+SI)	Lubricomp WX07423H
(PBT+PTFE+SI)	RTP 1000 TFE 10 SI 2
(PBT+PTFE+SI)	RTP 1000 TFE 15 SI 2
(PBT+PTFE+SI)	RTP 1000 TFE 18 SI 2
(PBT+PTFE+SI)-CF	Lubricomp WCP36
(PBT+PTFE+SI)-CF30	RTP 1085 TFE 13 SI 2
(PBT+PTFE+SI)-GF	Lubricomp WFP36
(PBT+PTFE+SI)-GF30	RTP 1005 TFE 13 SI 2
(PBT+SAN)-GF20	Crastin® LW9320 BK851
(PBT+SAN)-GF30	Crastin® LW9330 BK851
(PBT+SAN)-I-GF20	Crastin® LW9320 NC010
(PBT+SAN)-I-GF20	Crastin® LW9320LM BK591
(PBT+SAN)-I-GF30	Crastin® LW9330 NC010
(PBT+SI)	Denilub B 00U 1Si
销售热线：13528694940 张先生在线 QQ：813986068 E - mail：sales@rfxsj.com 企业网址：http://www.rfxsj.com