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Manufacturing method of conical mica tube

A production method and technology of mica tubes, which are applied to electrical components, insulators, circuits, etc., can solve the problems of high mica tube strength and inability to make conical mica tubes, and achieve low production costs, reliable and effective production technical parameters, and a preparation method simple effect

Pending Publication Date: 2022-02-08
PAMICA TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a method for making a tapered mica tube, which can solve the problem that the existing mica tube making method cannot make a tapered mica tube, and the preparation method is simple and the production cost is low. , The produced mica tube has high strength

Method used

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  • Manufacturing method of conical mica tube
  • Manufacturing method of conical mica tube
  • Manufacturing method of conical mica tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present embodiment carries out the making of tapered mica pipe, comprises the following steps:

[0035] (1) Brush organic silica gel evenly on the surface of mica paper 1 with a glue brushing device, dry and gel for 120 seconds, and obtain mica glued paper 2 with a mass content of organic silica gel of 7.2%;

[0036] (2) Put 9 pieces of mica glued paper 2 into a molding machine, pressurize the mica glued paper 2 into a mica board 3 with a pressing pressure of 50 MPa, a pressurizing time of 5 minutes, and a heating temperature of 50° C.;

[0037] (3) the mica plate 3 is processed into the required fan-shaped mica plate 4 by machining technology;

[0038] (4) The fan-shaped mica plate 4 is slowly bent and bonded to the surface of the male mold 6, and then the fan-shaped mica plate 4 is put into the female mold 5 to surround and fit to form a truncated conical shape, and the male mold 6 is closed for shaping. The setting time is 200 seconds, and it becomes a tapered t...

Embodiment 2

[0042] The present embodiment carries out the making of tapered mica pipe, comprises the following steps:

[0043] (1) Evenly brush the organic silica gel on the surface of the mica paper 1 with a glue brushing device, dry and gel for 240 seconds, and obtain the mica glued paper 2 with a mass content of organic silica gel of 6%;

[0044] (2) Put 12 pieces of mica glued paper 2 into a molding machine, pressurize the mica glued paper 2 into a mica board 3 with a pressing pressure of 10 MPa, a pressurizing time of 20 minutes, and a heating temperature of 20° C.;

[0045] (3) the mica plate 3 is processed into the required fan-shaped mica plate 4 by machining technology;

[0046] (4) The fan-shaped mica plate 4 is slowly bent and bonded to the surface of the male mold 6, and then the fan-shaped mica plate 4 is put into the female mold 5 to surround and fit to form a truncated conical shape, and the male mold 6 is closed for shaping. The setting time is 300 seconds, and it becomes...

Embodiment 3

[0050] The present embodiment carries out the making of tapered mica pipe, comprises the following steps:

[0051] (1) Brush organic silica gel evenly on the surface of the mica paper 1 with a glue brushing device, dry and gel for 20 seconds, and obtain mica glued paper 2 with a mass content of organic silica gel of 15%;

[0052] (2) Put 5 pieces of mica glued paper 2 into a molding machine, pressurize the mica glued paper 2 into a mica plate 3 with a pressure of 200 MPa, a pressurization time of 1 minute, and a heating temperature of 80° C.;

[0053] (3) the mica plate 3 is processed into the required fan-shaped mica plate 4 by machining technology;

[0054] (4) The fan-shaped mica plate 4 is slowly bent and bonded to the surface of the male mold 6, and then the fan-shaped mica plate 4 is put into the female mold 5 to surround and fit to form a truncated conical shape, and the male mold 6 is closed for shaping. The setting time is 10 seconds, and it becomes a tapered tube pref...

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Abstract

The invention relates to a manufacturing method of a conical mica tube. The comprises the following steps: (1) brushing organic silica gel on the surface of mica paper, and drying and gelling to obtain mica laminated paper with the mass content of the organic silica gel of 6-15%; (2) putting a plurality of pieces of mica laminated paper into a molding press, and performing pressurizing and heating, and pressing the mica laminated paper into a mica plate; (3) processing the mica plate into a required fan-shaped mica plate; (4) making the fan-shaped mica plate subjected to mold closing forming to form a conical pipe prefabricated product; (5) putting a piece of release agent paper or a film on each of the inner wall and the outer wall of the conical pipe prefabricated product, closing the mold, heating, and then applying an instantaneous pressure; and (6) continuing to heat, then keeping constant-temperature baking, and opening the mold to obtain the conical mica tube. The conical mica tube can be effectively produced and prepared through the steps of glue brushing, press molding and plate making, machining and mold closing and heating, the preparation method is simple, the preparation cost is low, and the prepared mica tube is high in strength.

Description

technical field [0001] The invention relates to the technical field of mica material processing, in particular to a method for manufacturing a tapered mica tube. Background technique [0002] Among the refractory insulating materials currently under development in China, some mica tubes are used for electric heating equipment or its components. The mica tube is characterized by a hard tubular shape, high insulation, high mechanical strength and high temperature resistance. Mica tubes can be widely used in heating components in various hair dryers, motors, and electrical equipment, and are used to isolate heating wires (tubes), electrodes (rods), etc. Most of the mica tubes are in the shape of cylindrical tubes, and the processing method is relatively simple. In addition, the demand for tapered tubes in the market is gradually increasing, and the processing and production of tapered tubes is difficult. It is rare in the market and there is no mature one. Therefore, it is nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00H01B19/02H01B19/04
CPCH01B19/00H01B19/02H01B19/04
Inventor 吴学领况龙刚
Owner PAMICA TECH CORP
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