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Evanescent mold coating for producing automobile coverage piece die and preparing method and application method of evanescent mold coating

A technology for automotive panels and lost foam, applied in coatings, manufacturing tools, casting and molding equipment, etc., can solve the problems of high temperature resistance, coating hangability and poor leveling of lost foam coatings, and achieve rich sources and good air permeability The effect of high temperature resistance and low price

Inactive Publication Date: 2019-12-27
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the lost foam coatings currently used to produce automotive panel molds have poor high temperature resistance, coating and leveling properties.

Method used

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  • Evanescent mold coating for producing automobile coverage piece die and preparing method and application method of evanescent mold coating
  • Evanescent mold coating for producing automobile coverage piece die and preparing method and application method of evanescent mold coating
  • Evanescent mold coating for producing automobile coverage piece die and preparing method and application method of evanescent mold coating

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A kind of lost-foam coating used for producing automobile panel molds, comprising the following raw materials in percentage by weight: bauxite 50.94%, quartz powder 35%, silica sol 1.5%, sodium bentonite 3%, white latex 1.2%, ZnO 1.6 %, KMnO 4 0.5%, organic bentonite 1%, organic short fiber 0.6%, CMC 1.5%, iron oxide 3.0%, polyoxyethylene ether 0.1%, n-octanol 0.02%, formaldehyde aqueous solution 0.04%; -90% water as solvent.

[0028] The preparation method of the lost foam coating for the production of automobile panel molds is as follows: adding the raw materials of the formulation amount except bauxite and quartz powder into the water, stirring and mixing evenly, adding the formulation amount of bauxite, Quartz powder, stir and mix evenly, adjust the viscosity of the system to 22-26Pa.s, the lost foam coating for the production of automobile panel molds can be obtained, the Baume degree of the obtained coating is in the range of 65-68Be, and the density At 1.60-1.6...

Embodiment 2

[0030] A lost-foam coating for producing automobile panel molds, comprising the following raw materials in weight percent: bauxite 51%, quartz powder 34%, silica sol 2.3%, sodium bentonite 2%, white latex 1.3%, ZnO2. 26%, KMnO 4 0.5%, organic bentonite 1.2%, organic short fiber 0.7%, CMC 1.5%, iron oxide 3.0%, polyoxyethylene ether 0.2%, n-octanol 0.02%, formaldehyde aqueous solution 0.02%; -90% water as solvent.

[0031] The preparation method of the lost foam coating for the production of automobile panel molds is as follows: adding the raw materials of the formulation amount except bauxite and quartz powder into the water, stirring and mixing evenly, adding the formulation amount of bauxite, Quartz powder, stir and mix evenly, adjust the viscosity of the system to 22-26Pa.s, the lost foam coating for the production of automobile panel molds can be obtained, the Baume degree of the obtained coating is in the range of 65-68Be, and the density At 1.60-1.67g.cm 3 In the rang...

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Abstract

The invention discloses an evanescent mold coating for producing an automobile coverage piece die and a preparing method and an application method of the evanescent mold coating. The evanescent mold coating for producing the automobile coverage piece die comprises the following raw materials including bauxite, quartz powder, silica sol, sodium bentonite, white emulsion, ZnO, KMnO4, organic bentonite, organic short fiber, CMC, iron oxide, polyoxyethylene ether, n-caprylic alcohol, formalin and water. The provided evanescent mold coating for producing the automobile coverage piece die has good high temperature resistance, breathability, wettability, adhesion, coating hanging performance, sintering performance and peeling performance, the formed coating is small in gas volume and high in drying speed, and when the evanescent mold coating is used for automobile coverage piece die producing, the obtained die is smooth in surface, and air holes, sand burning and other defects are overcome.

Description

technical field [0001] The invention belongs to the technical field of coatings for lost foam, and in particular relates to a lost foam coating for producing automobile panel molds and a preparation and use method thereof. Background technique [0002] my country's lost foam casting is no longer in the previous stage of exploration, we are in the stage of technological innovation. For lost foam casting, lost foam coating is also indispensable, and the development of lost foam coating will directly affect the development of lost foam casting. The performance of the coating and the cost directly affect whether the lost foam casting can meet the production demand and the profit. [0003] In modern society, cars have come into our life. Cars are everywhere in our life. People not only enjoy the convenience brought by cars, but also put forward higher requirements for the quality of cars themselves. Automobiles have many covering parts, and the molds for automobile covering par...

Claims

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Application Information

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IPC IPC(8): B22C3/00B22C9/04
CPCB22C3/00B22C9/04
Inventor 柴知章张椿英王宜飞赵浩峰黄自成
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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