Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing pipe core and hetero-type rubber tube

A tube core and special-shaped technology, which is applied in the direction of tubular objects, household utensils, and other household utensils, can solve problems such as the deviation of the inner diameter of the special-shaped tube, and achieve the effect of improving product quality and reducing the difference in product inner diameter

Active Publication Date: 2014-03-12
昆山伟理塑汽车部件有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem in the prior art that the overall inner diameter of the special-shaped pipe has a large deviation when the special-shaped pipe is prepared by core-piercing and vulcanization after extrusion, the present invention provides a tube blank. The overall inner diameter of the special-shaped tube prepared by the tube blank is The deviation is small, which greatly improves the quality of special-shaped pipe products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing pipe core and hetero-type rubber tube

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The invention also discloses a preparation method of a special-shaped rubber hose, comprising:

[0025] a. Extruding the rubber material to obtain a hollow tube blank with a lumen inside;

[0026] b. Inserting the tube core into the tube cavity of the tube blank to obtain the tube tube to be vulcanized; wherein the tube core is the above tube core, and the front part of the tube core enters the tube cavity first when inserted;

[0027] c. Vulcanizing the tube blank to be vulcanized to obtain a special-shaped rubber tube precursor;

[0028] d. Pull out the tube core to obtain a special-shaped rubber tube.

[0029] According to the present invention, the sizing material used for preparing special-shaped hoses can be various sizing materials commonly used in this field, such as the sizing material can contain 100 parts of EPDM rubber, 5.0 parts of zinc oxide, 1.5 parts of stearic acid, 80 parts of Reinforcing agent, 40 parts of filler, 2.0 parts of anti-aging agent, 50 p...

Embodiment 1

[0047] This embodiment is used to illustrate the method for preparing the tube core and special-shaped rubber hose disclosed in the present invention.

[0048] The rubber material was placed in a compound extruder produced by Zhanjiang Equipment Co., Ltd., and extruded at 75°C with an extrusion speed of 8m / min. After cutting, the tube blank A1 is obtained, and the tube blank has a bend angle of 80°.

[0049] Take a pipe core corresponding to the configuration of the tube blank, which has a bend angle of 80°. The die is aluminum (coefficient of thermal expansion 2.3×10 -5 ℃ -1 ) and oxygen-free copper (the coefficient of thermal expansion is 1.86×10 -7 ℃ -1 ) are connected by threads at the corners.

[0050] The tube core is used to carry out core-piercing treatment on the tube blank to obtain the tube blank to be vulcanized. When threading the core, the end made of aluminum is used as the front section, and it first penetrates into the lumen of the tube blank.

[0051] ...

Embodiment 2

[0054] This embodiment is used to illustrate the method for preparing the tube core and special-shaped rubber hose disclosed in the present invention.

[0055] The preparation method of special-shaped rubber hose is identical with embodiment 1, and difference is to adopt iron (coefficient of thermal expansion is 1.2 * 10 -5 ℃ -1 ) and quartz (the coefficient of thermal expansion is 5.5×10 -7 ℃ -1 ) to replace the tube core in Embodiment 1 with a tube core connected at a bend by a screw thread.

[0056] Get the shaped hose S2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for preparing a pipe core and a hetero-type rubber tube. The pipe core comprises a straight forepart, a straight rear part and a bend; the forepart, blend and rear part are connected in order, and the thermal expansion coefficient of the forepart is larger than that of the rear part. The hetero-type rubber tube prepared by the method in the invention has a small pipe diameter deviation, and product quality is improved.

Description

technical field [0001] The invention relates to a tube core and a method for preparing a special-shaped rubber hose, in particular to a different-shaped tube core and a method for preparing a special-shaped rubber hose from the tube core. Background technique [0002] In daily life, rubber hoses, especially rubber hoses for automobiles, are used more and more widely. Generally, the preparation methods of rubber tubes are generally divided into two methods: compression molding and core-piercing vulcanization molding after extrusion. [0003] The method of compression molding refers to putting the rubber material into a mold for compression molding, and then putting it into a flat vulcanizing machine for vulcanization and molding. This method usually needs to process a molding die that conforms to the shape and angle of the product, and the die is composed of two parts, the upper and lower templates and the supporting tube core in the middle of the rubber hose. The surface o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29D23/00
Inventor 孙敬邹勇宫建坤梁燕锐
Owner 昆山伟理塑汽车部件有限公司