Anti-static resin sand preparation process

An antistatic resin and preparation technology, applied in the field of casting, can solve the problems of increasing preparation time, increasing material and labor costs, etc.

Inactive Publication Date: 2018-03-09
QINGDAO TIANDI CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Due to its particularity, the surface of the aircraft body must have an antistatic function, and the method commonly used in the world is to spray antistatic liquid in the resin sand, so that the surface of the sand has antistatic ability, and the surface of the aircraft body has an antistatic function; but It also brings a trouble, that is, the antistatic liquid needs to be sprayed repeatedly when the resin sand is reused, which not only increases the cost of materials and labor for each use, but also increases the preparation time

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0015] A kind of antistatic resin sand preparation process of the present embodiment comprises the following steps:

[0016] 1) Synthesis of urea-formaldehyde resin: Prepare 280 parts of urea, 490 parts of formaldehyde and 27 parts of urotropine according to the weight ratio required by the formula. First add 430 parts of formaldehyde required by the formula at one time and start stirring, then add 19 parts of urotropine until the urotropine is completely dissolved, measure the pH value, and add 270 parts of urea at one time after PH>7.5 and continue stirring Until dissolved, react at 65°C for 55 minutes to synthesize urea-formaldehyde resin;

[0017] 2) Kneading process: The urea-formaldehyde resin synthesized in 1) is gradually flowed into the kneader through the pipeline, and the amount of filler, color masterbatch, curing agent, titanium dioxide, mold release agent, antistatic agent and extender required by the formula is added at one time. For plasticizers, stir in one d...

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PUM

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Abstract

The invention discloses a preparation process of antistatic resin sand, which comprises the steps of synthesizing urea-formaldehyde resin, kneading process, drying process, crushing process, ball milling and powder sieving, granulation process and granulation process, mixing, packaging and the like. The antistatic resin sand provided by the invention and the preparation method thereof have antistatic ability and meet various requirements for the surface treatment of aircraft body, especially, the resin sand does not need to be sprayed with antistatic liquid during use.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a preparation process of antistatic resin sand. Background technique [0002] Due to its particularity, the surface of the aircraft body must have an antistatic function, and the method commonly used in the world is to spray antistatic liquid in the resin sand, so that the surface of the sand has antistatic ability, and the surface of the aircraft body has an antistatic function; but It also brings a trouble, that is, the antistatic liquid needs to be sprayed repeatedly when the resin sand is reused, which not only increases the cost of materials and labor for each use, but also increases the preparation time. Contents of the invention [0003] In order to overcome the above-mentioned problems existing in the prior art field, the purpose of the present invention is to provide a preparation process of antistatic resin sand, which can make the finally processed re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/22C08G12/12
CPCB22C1/22C08G12/12
Inventor 李玉敏
Owner QINGDAO TIANDI CASTING CO LTD
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