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Phenolic moulding plastic hot dicing process

A phenolic molding compound and hot pelletizing technology, which is applied in the field of thermosetting molding compounds, can solve the problems that a hot pulverizer cannot meet the production requirements of phenolic molding compounds, affect normal production operations, and have a low rate of screening and powder removal, and improve quality stability. And the effect of qualified rate, high production efficiency and stable product quality

Inactive Publication Date: 2017-02-15
韩喜梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production of phenolic molding compounds at home and abroad is produced by double-roll mills or screw machines, pressed into tablets, conveyed by conveyor belts or belts, and then pulverized by a pulverizer. During the pulverization process, the dust is very large, and the powder removal rate of screening Not high, and the thermal pulverizer cannot meet the production requirements of phenolic molding compound due to the hysteresis of heating. The heat generated during the pulverization process is large, which makes the phenolic molding compound soften in the pulverizer, clogging the pulverizer and the screen, and affecting normal production. operation; therefore, it is very necessary to provide a phenolic molding compound thermal pelletizing process with reasonable process, high production efficiency and stable product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A phenolic molding compound hot pelletizing process, the process steps are as follows:

[0020] Step 1): raw material pretreatment: crush the raw material to a particle size of less than 1mm to remove impurities;

[0021] Step 2): Use a ball mill, add ceramic balls into the ball mill, put the pretreated phenolic resin, catalyst and mold release agent into the ball mill and mill for 10-24 hours;

[0022] Step 3): Ingredients mixing: Put the raw materials into the mixer and mix for 20-40 minutes;

[0023] Step 4): Extrusion: Add the mixed raw materials into the extruder, and set the temperature of the extrusion port between 120-130 degrees Celsius;

[0024] Step 5): Rolling: Use a rolling machine with a diameter of 0.8-1.5m to press the material extruded by the extruder into a sheet with a thickness of 1-20mm. The inside of the roller is water-cooled and air-cooled. Cooling method to ensure that the temperature of the roller surface is below 40°C;

[0025] Step 6): Con...

Embodiment 2

[0029] A phenolic molding compound hot pelletizing process, the process steps are as follows:

[0030] Step 1): raw material pretreatment: crush the raw material to a particle size of less than 1mm to remove impurities;

[0031] Step 2): Use a ball mill, add ceramic balls to the ball mill, put the pretreated phenolic resin, catalyst and release agent into the ball mill and mill for 10-24 hours;

[0032] Step 3): Ingredients mixing: Put the raw materials into the mixer and mix for 20-40 minutes;

[0033] Step 4): Extrusion: Add the mixed raw materials into the extruder, and set the temperature of the extrusion port between 120-130 degrees Celsius;

[0034] Step 5): Rolling: Use a roller press with a diameter of 0.8-1.5m to press the material extruded by the extruder into a sheet with a thickness of 1-20mm. The inside of the roller is water-cooled and air-cooled. Cooling method to ensure that the temperature of the roller surface is below 40°C;

[0035] Step 6): Conveying the...

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Abstract

The invention relates to a phenolic moulding plastic hot dicing process. The phenolic moulding plastic hot dicing process comprises the following process steps: 1) raw materials are pretreated; 2) a ball mill is used; ceramic balls are added in the ball mill; and pretreated phenolic resins, catalysts and demolding agents are put in the ball mill for ball milling by 10-24 hours; 3) the ingredients are mixed; 4) the extrusion is performed; 5) the rolling is performed; 6) cut strips are conveyed; and 7) the screening and the packing are performed. The phenolic moulding plastic hot dicing process has the advantages of reasonable process, high production efficiency and stable product quality.

Description

technical field [0001] The invention belongs to the technical field of thermosetting molding compounds, in particular relates to a phenolic molding compound, in particular to a thermal pelletizing process of the phenolic molding compound. Background technique [0002] At present, the production of phenolic molding compounds at home and abroad is produced by double-roll mills or screw machines, pressed into tablets, conveyed by conveyor belts or belts, and then pulverized by a pulverizer. During the pulverization process, the dust is very large, and the powder removal rate of screening Not high, and the thermal pulverizer cannot meet the production requirements of phenolic molding compound due to the hysteresis of heating. The heat generated during the pulverization process is large, which makes the phenolic molding compound soften in the pulverizer, clogging the pulverizer and the screen, and affecting normal production. Therefore, it is very necessary to provide a thermal p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B13/10B29B9/02B29C69/00
CPCB29B13/10B29B9/02B29C48/0011B29C48/0022
Inventor 韩喜梅
Owner 韩喜梅
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