A rapid vulcanization molding process and mold for rubber parts
A technology of rapid vulcanization and molding process, applied in the field of rubber vulcanization, can solve the problems of low efficiency of secondary vulcanization treatment, achieve the effects of shortening vulcanization time, improving quality, and dense microstructure
Active Publication Date: 2017-12-26
HEFEI UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] In order to overcome the deficiencies of the prior art, the present invention provides a rapid vulcanization molding process for rubber parts to solve the problem of low efficiency of secondary vulcanization treatment in the prior art. Another purpose of the present invention is to provide a special mold for this process
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation,...
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
Login to View More Abstract
The invention relates to the field of rubber vulcanization, in particular to a rapid vulcanization molding process and mold for rubber parts. The invention adopts the injection vulcanization process, and the injection molding chamber used is divided into upper and lower parts, the upper part is a pre-sulfurization chamber, and the lower part is a vulcanization chamber. A point gate is provided at the bottom of the vulcanization chamber. The present invention heats two parts of the rubber material through the injection mold once, and injects and vulcanizes it twice. Since the rubber material in the vulcanization chamber is in the positive vulcanization stage, its physical properties are much higher than those in the pre-vulcanization stage in the pre-sulfurization chamber. Therefore, it can be guaranteed that the late added rubber will not mix with the rubber in the vulcanization cavity, and will not affect the quality of the rubber parts. Continuously repeating the cycle can reduce the vulcanization time of rubber parts by half, greatly improving production efficiency.
Description
technical field [0001] The invention relates to the field of rubber vulcanization, in particular to a rapid vulcanization molding process and mold for rubber parts. Background technique [0002] The process in which rubber macromolecules react chemically with crosslinking agent sulfur under heating to form a three-dimensional network structure. The vulcanized rubber is called vulcanized rubber. Vulcanization is the last process in rubber processing, and rubber molded products with practical value can be obtained. [0003] Rubber vulcanization is a complex chemical reaction process. The vulcanization process can be divided into four stages: vulcanization induction, pre-vulcanization, normal vulcanization and over-vulcanization (reversion to natural rubber). [0004] During the vulcanization induction period (scorch time), the crosslinking has not yet started, and the compound has good fluidity. This stage determines the scorch property and processing safety of the compound...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/02B29C45/32B29C35/02
CPCB29C35/02B29C45/02B29C45/32
Inventor 赵茂俞
Owner HEFEI UNIV