CN104260318A - 改善pe实壁管道内外壁粗糙度的方法 - Google Patents

改善pe实壁管道内外壁粗糙度的方法 Download PDF

Info

Publication number
CN104260318A
CN104260318A CN201410394829.4A CN201410394829A CN104260318A CN 104260318 A CN104260318 A CN 104260318A CN 201410394829 A CN201410394829 A CN 201410394829A CN 104260318 A CN104260318 A CN 104260318A
Authority
CN
China
Prior art keywords
wall
ring set
plug
water tank
roughness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410394829.4A
Other languages
English (en)
Inventor
阮洪良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING RUAN'S PLASTIC INDUSTRY Co Ltd
Original Assignee
CHONGQING RUAN'S PLASTIC INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING RUAN'S PLASTIC INDUSTRY Co Ltd filed Critical CHONGQING RUAN'S PLASTIC INDUSTRY Co Ltd
Priority to CN201410394829.4A priority Critical patent/CN104260318A/zh
Publication of CN104260318A publication Critical patent/CN104260318A/zh
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Abstract

本发明公开了一种改善PE实壁管道内外壁粗糙度的方法，包括以下步骤：混料、烘干；吸料机吸料至料斗进行二次烘干；下料到螺杆料筒；螺杆剪切、挤压、熔融、预塑；模具成型加工；真空水箱冷却、定径套定型；一级水箱冷却定型；二级水箱冷却。采用本发明的工艺流程加工出来的PE实壁管道，由于在模具加工成型的过程中增设了模板环套和芯棒环套，在挤出管型坯料的同时也对管形坯料的内、外壁挤压刮擦，再经过定径套的二次挤压刮擦，提高成品PE实壁管道内、外壁的外观和粗糙度质量。

Description

改善PE实壁管道内外壁粗糙度的方法
技术领域
本发明涉及PE实壁管道加工，特别涉及一种改善PE实壁管道内外壁粗糙度的方法。 
背景技术
PE材料现在普遍应用在管道制造领域，PE材料的管壁整体是块状的，而PE材料是块状存在的时候，由于拉伸强度较低，抗蠕变性不好，再加上材料本身存在大量的晶体，在拉伸变薄的成型加工过程中，形成的管道内、外壁会显得颗粒较多或出现很多气孔产生的坑洼之处，严重影响产品的外观和质量。 
发明内容
本发明要解决的技术问题是提供了一种可改善PE实壁管道内外壁粗糙度的方法。 
本发明的技术方案如下： 
改善PE实壁管道内外壁粗糙度的方法，它包括以下工艺步骤： 
(1)混料、烘干； 
(2)吸料机吸料至料斗进行二次烘干； 
(3)下料到螺杆料筒； 
(4)螺杆剪切、挤压、熔融、预塑； 
(5)模具成型加工，具体方法是：根据口模的模套内径尺寸加 工一个模套环套；再根据芯棒的外径尺寸加工一个芯棒环套，所述模板环套和芯棒环套由聚四氟乙烯材料制成；把模套环套嵌套入模套内，把芯棒环套套装在芯棒外侧；启动模具，模具挤出机挤出PE料坯，模套环套与PE料坯的内壁挤压刮擦，同时芯棒环套与PE料坯的外壁挤压刮擦，使PE料坯内、外壁的粗糙度达到Ra(0.1～0.3)μm；用色标机附上四条蓝色带； 
(6)真空水箱冷却、定径套定型。 
采用以上工艺流程，在模具加工成型的过程中增设了模板环套和芯棒环套，利用模板环套和芯棒环套装配时形成的间隙大小，在挤出管型坯料的同时也对管形坯料的内、外壁挤压刮擦，使PE料坯内、外壁的粗糙度达到Ra(0.1～0.3)μm，满足外观和质量的工艺要求，加上模板环套和芯棒环套采用聚四氟乙烯材料制成，不仅耐高温，提高了机械性能，还不易粘附杂质而影响产品的粗糙度，再经过定径套的二次挤压刮擦和定型，可进一步提高和稳定成品PE实壁管道内、外壁的外观和粗糙度质量。 
为了满足粗糙度的工艺要求，在挤压刮擦过程中需要通过调整挤压间隙大小来实现，作为优选，所述模套环板套的内径比模套的内径小0.2～1mm，所述芯棒环套的外径比芯棒的外径大0.1～0.5mm。 
为了减少成型摩擦力，防止管型坯料的成型受损，作为优选，所述模板环套和芯棒环套的长度范围是5～8mm。 
为了生产出满足客户要求的产品，作为优选，还包括以下步骤：一级水箱冷却定型、二级水箱冷却、牵引机拉出、喷码机打字、切割 机切割定长、放入翻料架和检验入库。 
有益效果：采用本发明的工艺流程加工出来的PE实壁管道，由于在模具加工成型的过程中增设了模板环套和芯棒环套，在挤出管型坯料的同时也对管形坯料的内、外壁挤压刮擦，再经过定径套的二次挤压刮擦，提高成品PE实壁管道内、外壁的外观和粗糙度质量。 
具体实施方式
本发明提供的这种改善PE实壁管道内外壁粗糙度的方法，具体步骤如下： 
实施例1 
加工粗糙度为Ra0.1μm的PE实壁管道： 
(1)混料、烘干：把PE材料和色母料混合，在80℃的温度下烘干2小时； 
(2)吸料机吸料至料斗进行二次烘干：在80℃的温度下再烘干半个小时，继续挥发原料中的水份； 
(3)下料到螺杆料筒：把原料送入螺杆料筒； 
(4)螺杆剪切、挤压、熔融、预塑：根据设定的产品工艺要求，对PE混合原料进行坯料下料剪切，然后对料坯进行挤压预成型，再将已预压成型的料坯熔融，最后用螺杆对熔融的料坯进行预塑工序的加工； 
(5)模具成型加工，具体方法是：根据口模的模套内径尺寸加工一个聚四氟乙烯制成的模套环套，所述模套环套的内径比模套的内径小0.2mm；再根据芯棒的外径尺寸加工一个芯棒环套，所述芯棒环 套的外径比芯棒的外径大0.5mm，所述模板环套和芯棒环套的长度范围都是8mm；把模套环套嵌套入模套内，把芯棒环套套装在芯棒外侧；启动模具，模具挤出机挤出已预塑加工的PE料坯，模套环套与PE料坯的外壁挤压刮擦，同时芯棒环套与PE料坯的内壁挤压刮擦，使PE料坯内、外壁的粗糙度达到Ra0.1μm；用色标机附上四条材料标识的蓝色带； 
(6)真空水箱冷却、定径套定型：模具成型后的管形料坯套接在定径套的外表，由于模具成型时温度较高，管形料坯质地还比较软，定径套的外表面可以给管形料坯的内壁起到二次挤压刮擦的作用，在真空水箱25～30℃的温度下冷却定型的同时，保持10m/h的传送速度，进一步稳定管形料坯内壁的平整和粗糙度 
(7)一级水箱冷却定型：在保证10m/h的传送速度以及25～30℃的温度下持续给管形料坯冷却； 
(8)二级水箱冷却：继续保证10m/h的传送速度，并在25～30℃的温度下持续给管形料坯冷却； 
(9)牵引机拉出并用喷码机打字：牵引机的传送装置拉出管形坯料，并在对应位置用喷码机喷涂用来区别材料的相关字码； 
(10)切割机切割定长：根据工艺要求把管型坯料按规定尺寸定长切割； 
(11)放入翻料架：把切割好的管料成品通过翻料架自动翻料摆放在翻料架上； 
(12)检验入库：根据工艺要求提供的尺寸数据检测，合格品入 库。 
实施例2 
加工粗糙度为Ra0.3μm的PE实壁管道： 
步骤1～步骤4按实施例1进行，在步骤5)中所述模套环套的内径加工到比模套的内径小1mm，再把所述芯棒环套的外径加工到比芯棒的外径大0.1mm，所述模板环套和芯棒环套的长度都加工成5mm，加大了模板环套和芯棒环套与PE料坯的挤压刮擦间隙，同时，在真空水箱、一级水箱和二级水箱之间的传送过程中保证15m/h的传送速度并保证25～30℃的温度，其余后面工序的工艺要求同实施例1一致，这样就可使PE料坯内、外壁的粗糙度达到Ra0.3μm。 
另外，在所述步骤5)中，根据生产实际需要，可将模套环套和芯棒环套用螺栓分别固定在口模的模套内和芯棒的外表面上，防止磨损脱落。 
以上仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构，直接或间接运用在其他相关的技术领域，均同理在本发明的专利保护范围之内。 

Claims (4)

1.改善PE实壁管道内外壁粗糙度的方法，其特征是：包括以下步骤：
(1)混料、烘干；
(2)吸料机吸料至料斗进行二次烘干；
(3)下料到螺杆料筒；
(4)螺杆剪切、挤压、熔融、预塑；
(5)模具成型加工，具体方法是：根据口模的模套内径尺寸加工一个模套环套；再根据芯棒的外径尺寸加工一个芯棒环套，所述模板环套和芯棒环套由聚四氟乙烯材料制成；把模套环套嵌套入模套内，把芯棒环套套装在芯棒外侧；启动模具，模具挤出机挤出PE料坯，模套环套与PE料坯的外壁挤压刮擦，同时芯棒环套与PE料坯的内壁挤压刮擦，使PE料坯内、外壁的粗糙度达到Ra(0.1～0.3)μm；用色标机附上四条蓝色带；
(6)真空水箱冷却、定径套定型。
2.根据权利要求1所述的改善PE实壁管道内外壁粗糙度的方法，其特征在于：步骤5)中所述模套环套的内径比模套的内径小0.2～1mm，所述芯棒环板的外径比芯棒的外径大0.1～0.5mm。
3.根据权利要求1所述的改善PE实壁管道内外壁粗糙度的方法，其特征在于：步骤5)中所述模板环套和芯棒环套的长度范围是5～8mm。
4.根据权利要求1到权利要求4所述的改善PE实壁管道内外壁粗糙度的方法，其特征在于：还包括以下步骤：一级水箱冷却定型、二级水箱冷却、牵引机拉出、喷码机打字、切割机切割定长、放入翻料架和检验入库。
CN201410394829.4A 2014-08-12 2014-08-12 改善pe实壁管道内外壁粗糙度的方法 Pending CN104260318A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410394829.4A CN104260318A (zh) 2014-08-12 2014-08-12 改善pe实壁管道内外壁粗糙度的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410394829.4A CN104260318A (zh) 2014-08-12 2014-08-12 改善pe实壁管道内外壁粗糙度的方法

Publications (1)

Publication Number Publication Date
CN104260318A true CN104260318A (zh) 2015-01-07

Family

ID=52151961

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410394829.4A Pending CN104260318A (zh) 2014-08-12 2014-08-12 改善pe实壁管道内外壁粗糙度的方法

Country Status (1)

Country Link
CN (1) CN104260318A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107383559A (zh) * 2017-08-31 2017-11-24 芜湖凡达机械科技有限公司 一种耐冲击pe实壁管的制备方法
CN112477054A (zh) * 2020-11-11 2021-03-12 常州恩多科宁医疗器械有限公司 一种内窥镜用水泵管循环生产装置及系统
CN113895014A (zh) * 2021-10-26 2022-01-07 雄县顺财塑胶制品有限公司 Pe管用挤出机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080138A (en) * 1975-11-17 1978-03-21 The Dow Chemical Company Extrusion process and apparatus
JPH02289326A (ja) * 1989-01-16 1990-11-29 Manfred A A Lupke 熱可塑性管形成用成形装置
CN2180444Y (zh) * 1993-10-18 1994-10-26 大连威亚程控塑料机械公司 硬聚氯乙烯双壁波纹管成型机头
CN101249717A (zh) * 2008-04-03 2008-08-27 李建国 一种水龙带的制造方法及水龙带制造设备
CN101352916A (zh) * 2007-07-24 2009-01-28 上海上丰集团有限公司 耐热聚乙烯管的生产方法
CN102380944A (zh) * 2011-11-14 2012-03-21 浙江伟星新型建材股份有限公司 高光度聚乙烯管道生产模具及处理方法
CN203391270U (zh) * 2013-07-22 2014-01-15 青岛世泽机械设备制造有限公司 一种管材挤出模具

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080138A (en) * 1975-11-17 1978-03-21 The Dow Chemical Company Extrusion process and apparatus
JPH02289326A (ja) * 1989-01-16 1990-11-29 Manfred A A Lupke 熱可塑性管形成用成形装置
CN2180444Y (zh) * 1993-10-18 1994-10-26 大连威亚程控塑料机械公司 硬聚氯乙烯双壁波纹管成型机头
CN101352916A (zh) * 2007-07-24 2009-01-28 上海上丰集团有限公司 耐热聚乙烯管的生产方法
CN101249717A (zh) * 2008-04-03 2008-08-27 李建国 一种水龙带的制造方法及水龙带制造设备
CN102380944A (zh) * 2011-11-14 2012-03-21 浙江伟星新型建材股份有限公司 高光度聚乙烯管道生产模具及处理方法
CN203391270U (zh) * 2013-07-22 2014-01-15 青岛世泽机械设备制造有限公司 一种管材挤出模具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周殿明: "《塑料管挤出成型》", 31 October 2011, 机械工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107383559A (zh) * 2017-08-31 2017-11-24 芜湖凡达机械科技有限公司 一种耐冲击pe实壁管的制备方法
CN112477054A (zh) * 2020-11-11 2021-03-12 常州恩多科宁医疗器械有限公司 一种内窥镜用水泵管循环生产装置及系统
CN113895014A (zh) * 2021-10-26 2022-01-07 雄县顺财塑胶制品有限公司 Pe管用挤出机

Similar Documents

Publication Publication Date Title
KR101421101B1 (ko) 블로우 성형장치
CN108338482B (zh) 环保高刚性防静电单管眉笔及其制备方法
CN205185277U (zh) 一种pvb管挤出机
CN104260318A (zh) 改善pe实壁管道内外壁粗糙度的方法
CN105754215A (zh) 一种pp双壁波纹管的制作方法
CN104228050A (zh) 花盆的吸塑成型加工方法
CN103831966B (zh) 一种制造耐热聚乳酸水瓶的方法
CN208247411U (zh) 一种用于电缆生产的塑料挤出机
CN107471607A (zh) 一种废料挤出吹塑及消除熔接线的制备方法
CN111347699A (zh) 一种pe给水管的制备方法
CN105500659A (zh) 一种尼龙托辊管体制造装置及制造工艺
CN206623376U (zh) 一种吹瓶机的边角料回收机构
CN204658901U (zh) 一种塑料挤出模具
CN205326235U (zh) 单螺杆挤塑机
CN202241920U (zh) 一种双壁波纹管口模部件
CN207172718U (zh) 一种塑料吹塑机
CN202318902U (zh) Pc吹塑机用芯棒式机头
CN205058444U (zh) 一种自动对准的模压制造特种塑料瓶盖模具及模压设备
CN105269795A (zh) 一种机头温度控制中空吹塑制品壁厚分布的成型工艺
CN205112209U (zh) 一种模压制造特种塑料瓶盖模具及模压设备
CN220742097U (zh) 一种带有脱泡功能的吹塑机
CN108891006A (zh) 一种双色瓶的生产工艺
CN204019968U (zh) 用于生产塑料瓶的中空挤吹成型机
CN210501293U (zh) 一种ptfe管材挤出机
CN213860470U (zh) Pet瓶胚群腔模具用热流道喷嘴结构

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150107