Unlock instant, AI-driven research and patent intelligence for your innovation.

Surface machining process for lost foam

A surface processing and lost foam technology, applied in metal processing equipment, manufacturing tools, coatings, etc., can solve problems such as reducing pouring quality, affecting pouring, and failing to apply, so as to improve pouring quality, avoid coating after coating, and improve The effect of uniformity

Inactive Publication Date: 2018-02-02
六安万邦机械科技有限公司
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of the industrial level, people's production and processing level of the lost foam is getting higher and higher, and they will soon enter the integrated mass production. In the existing technology, the surface coating of the lost foam is generally done manually. Smear, but due to the different shapes and sizes of the lost foam, the thickness of the surface is different when applied, so that some parts will not be smeared, resulting in white space, and at the same time, the lost foam smear layer will be too thick, resulting in insufficient air permeability for smearing , which is not conducive to the discharge of lost foam pyrolysis gas, affects the pouring of the entire lost foam, and greatly reduces the quality of pouring

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A surface processing technology of lost foam, the processing of its surface comprises the following steps:

[0021] (1) The preparation of the lost foam coating, its materials and their weight ratios are: 24 parts of mullite powder, 23 parts of quartz sand, 5 parts of sodium bentonite, 15 parts of polyvinyl acetate, 3 parts of polyvinyl alcohol, alkylbenzene 0.3 parts of sodium sulfonate, 5 parts of T-805, 0.7 parts of n-octanol, 0.5 parts of iron oxide powder, 10 parts of graphite powder, mix the above ingredients with water according to the weight ratio, and stir into a viscous shape;

[0022] (2) The coating process of the lost foam surface, the lost foam coating prepared in step 1 is evenly coated on the lost foam surface, and the dipping method is used for coating when coating, and the lost foam is quickly immersed in the lost foam coating for dip coating, During dip coating, dip coating by rinse method, the dip coating time is 10s;

[0023] (3) Then place the los...

Embodiment 2

[0032] A surface processing technology of lost foam, the processing of its surface comprises the following steps:

[0033] (1) The preparation of the lost foam coating, its materials and their weight ratios are: 20 parts of mullite powder, 24 parts of quartz sand, 4 parts of sodium bentonite, 10 parts of polyvinyl acetate, 3 parts of polyvinyl alcohol, alkylbenzene 0.6 parts of sodium sulfonate, 7 parts of T-807, 0.7 parts of n-octanol, 0.8 parts of iron oxide powder, and 9 parts of graphite powder, mix the above ingredients with water according to the weight ratio, and stir into a viscous shape;

[0034] (2) The coating process of the lost foam surface, the lost foam coating prepared in step 1 is evenly coated on the lost foam surface, and the dipping method is used for coating when coating, and the lost foam is quickly immersed in the lost foam coating for dip coating, During dip coating, dip coating by rinse method, the dip coating time is 10s;

[0035] (3) Then place the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention aims at providing a surface machining process for lost foam. The surface machining process comprises the following steps: (1) preparing a lost foam coating, that is, proportioning components in ratio by weight and then mixing the components with water, and stirring to achieve a sticky state; (2) carrying out a surface applying process for the lost foam, that is, uniformly applying the lost foam coating prepared in the step 1 onto the surface of the lost foam, applying in a manner of dip-coating, and rapidly dipping the lost foam into the lost foam coating and carrying out the dip-coating; (3) then uniformly placing the lost foam subjected to the dip-coating in the step 2 onto a placement frame and carrying out primary drying; and (4) finally placing the aired lost foam into alost foam drying box and carrying out secondary drying for 20-30min. The applying uniformity can be effectively improved through a brush-coating manner, and blanks are avoided, so that the casting quality is improved.

Description

technical field [0001] The present invention relates to the field of the processing technology of the lost foam, in particular to the improvement of the surface coating of the lost foam, and in particular to a surface processing technology of the lost foam. Background technique [0002] With the improvement of the industrial level, people's production and processing level of the lost foam is getting higher and higher, and they will soon enter the integrated mass production. In the existing technology, the surface coating of the lost foam is generally done manually. Smear, but due to the different shapes and sizes of the lost foam, the thickness of the surface is different when applied, so that some parts will not be smeared, resulting in white space, and at the same time, the lost foam smear layer will be too thick, resulting in insufficient air permeability for smearing , is not conducive to the discharge of the lost foam pyrolysis gas, affects the pouring of the entire los...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22C3/00B22C9/12
CPCB22C9/04B22C3/00B22C9/12
Inventor 李谦伟
Owner 六安万邦机械科技有限公司