Mold pressing production technology for polytetrafluoroethylene plates

Abstract

The invention discloses a mold pressing production technology for polytetrafluoroethylene plates. The mold pressing production technology for the polytetrafluoroethylene plates comprises the following steps of preparing materials, sieving the raw materials, selecting a pressing mold, arranging dustproof operation during mold pressing, detecting semi-finished products, conducting sintering treatment, eliminating stress, conducting extension treatment, conducting trimming and shearing, conducting press fit treatment, conducting extension treatment for the second time, conducting surface treatment on the plates, conducting cooling, cutting the plates, detecting the finished products and conducting packaging treatment on the finished products. By the adoption of the mold pressing production technology for the polytetrafluoroethylene plates, the density of the processed plates is 2.2 gram per cubic centimeter, the tensile strength of the processed plates is larger than 15 MPA, the processed products meet the national industrial standard specifications, and the production technological process is reasonable in design and compact.

Description

technical field [0001] The invention relates to the field of fluoroplastic product processing, in particular to a polytetrafluoroethylene plate molding production process. Background technique [0002] Fluoroplastics are composed of carbon atoms and fluorine atoms, with stable chemical properties and small friction coefficient. Among fluoroplastics, polytetrafluoroethylene is the most common. Polytetrafluoroethylene is known as the king of plastics and is widely used in military and high-end products. , Alkali, and solvents have no corrosion on it. The electrical properties of fluoroplastics, especially high-frequency electrical properties, are unmatched by other materials, and the application of fluoroplastics in the fields of semiconductors, medical care, chemicals, and wire coatings is also expanding. With the acceleration of informatization, the demand for PTFE is increasing, and PTFE has high industry barriers. The core technology is mastered by Europe and the United St...

AI Technical Summary

Problems solved by technology

[0002] Fluoroplastics are composed of carbon atoms and fluorine atoms, with stable chemical properties and small friction coefficient. Among fluoroplastics, polytetrafluoroethylene is the most common. Polytetrafluoroethylene is known as the king of plastics and is widely used in military and high-end products. , Alkali, and solvents have no corrosion on it. The electrical properties of fluoroplastics, especially high-frequency electrical properties, are unmatched by other materials, and the application of fluoroplastics in the fields of semiconductors, medical care, chemicals, and wire coatings is also expanding. With the acceleration of informatization, the demand for PTFE is increasing, and PTFE has high industry barriers. The core technology is mastered by Europe and the United States. The dielectric loss factor of PTFE is low, but PTFE sheet is in In the process of processing, it works in a glass state, with unstable mechanical properties, easy deformation, difficult processing, long cycle, huge equipment, and cumbersome process. Therefore, the present invention provides a polytetrafluoroethylene sheet molding production process with compact process design. , the produced PTFE products can meet the needs of industrial production