Transfer moulding forming method and apparatus thereof
A technology of transfer molding and forming equipment, which is applied in the field of transfer molding methods and equipment to improve work efficiency and realize the effect of automatic operation
Active Publication Date: 2015-06-03
ZHUZHOU HONGDA POLYMER MATERIALS
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a transfer molding method and equipment, which can solve the problems of pipe fittings, valves and various types of pump body linings in large-scale chemical anti-corrosion medium delivery pipelines through the organic combination of small equipment. production problems, and can achieve continuous production
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[0023] Such as figure 1 As shown in the transfer molding method, according to the characteristics of melt-processable plastics, the extruded plastic melt (FEP is used as an example in the present invention) is directly extruded into the storage tank for heat preservation by using an extruder, and then the plastic The melt is poured into the mold for molding, which realizes continuous operation of the equipment, and is suitable for the production of products of different specifications, varieties and grades, and improves work efficiency by 30-60 times. It is the development direction of lining product processing and molding, and can achieve automatic operation. The specific process includes: : (A) Heat and extrude the prepared plastic raw materials with an extruder to plasticize and squeeze the plastic melt directly into the storage tank; (B) keep the plastic melt squeezed into the storage tank insulated; (C ) While carrying out the above steps, put the prepared mold into the o...
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The invention discloses a transfer moulding forming method and an apparatus thereof. The transfer moulding forming method adopts an extruder to heat according to characteristics of molten plastics so as to directly extrude a plastic melt into a material storage cylinder to carry out thermal insulation, and comprises the following specific process: adopting an extruder to carry out heating extrusion plasticizing on a prepared plastic raw material, and directly extruding the plastic melt into a material storage cylinder to carry out thermal insulation; placing a prepared mold into an oven to carry out heating and thermal insulation, and transferring into a pressure injection position; adopting a pressure injection system to carry out mold locking, pressure injection and pressure holding; and after carrying out pressure holding cooling, demolding, taking the product, and carrying out inspection and warehousing. The transfer moulding forming apparatus comprises a single screw extruder, a material storage cylinder, a pressure injection system and an electrical device control system. With the invention, organic combination of small devices is adopted to solve manufacturing problems of pipes, valves and pump liners with various types in large-scale chemical industry corrosion resistance medium conveying pipelines, such that continuous production is achieved, work efficiency is improved by 30-60 times, and automated operation can be achieved.
Description
technical field [0001] The invention relates to a manufacturing method and manufacturing equipment of chemical components, in particular to a transfer molding method and equipment. Background technique [0002] With the rapid development of the chemical industry, the demand for various pipelines and supporting lining pipe fittings, valves and pump bodies used to transport chemical corrosive media is also rising. As we all know, due to the strong corrosion of various acid-base solutions and chemical reagents in chemical media, ordinary metal materials cannot resist corrosion, and metal materials containing rare elements such as titanium are expensive and require a large investment. In order to reduce the manufacturing cost of chemical corrosive medium transportation pipelines, a reasonable solution has been obtained according to the method of classification and treatment at home and abroad, namely: Class I is a general corrosive medium with a medium temperature ≤ 70°C and a t...
Claims
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IPC IPC(8): B29C45/02
Inventor 朱基贵
Owner ZHUZHOU HONGDA POLYMER MATERIALS