CN104014719A - High-performance alcohol-base casting paint and production method thereof - Google Patents

Abstract

The invention discloses high-performance alcohol-base casting paint. The high-performance alcohol-base casting paint is characterized by being prepared from the following raw materials in parts by weight: 1 to 2 parts of oxalic acid, 2 to 3 parts of expanded perlite, 1.1 to 2.1 parts of sepiolite fabric, 0.7 to 1.2 parts of clay, 45 to 60 parts of quartz, 35 to 50 parts of white corundum, 4 to 6 parts of rosin, 0.3 to 0.6 part of nano lanthanum oxide, 1.2 to 3.6 parts of glycol, 0.6 to 1.2 parts of butyl cellosolve, 10 to 13 parts of domestic garbage, 2 to 3 parts of waste engine oil, 40 to 60 parts of ethanol and 3 to 6 parts of additives. The paint prepared by the method has the advantages that great attachment force, difficulty in dropping, good ventilation property, high temperature resistance, small pouring resistance and the like. The product which is produced by coating the paint onto a grinding tool is free from burnt-on sand or sand hole, and the application range is wide.

Description

A kind of high-performance alcohol base casting coatings and preparation method thereof

Technical field

The present invention relates to cast paint field, be specifically related to a kind of high-performance alcohol base casting coatings and preparation method thereof.

Background technology

Cast paint refers to for being coated in die cavity or core surface, to change the casting auxiliary material of the performances such as its surperficial refractoriness, chemical stability, anti-metal erosion, anti-stick grittiness, the disperse system that it is made up of the material of multiple different in kind, its composition mainly comprises the compositions such as refractory material, suspending agent, carrier, binding agent and special additive.While acting on foundry goods, require coating have good processing performance, service behaviour, quality stability and apply reappearance, can play on the one hand heat insulation, equalization temperature, exempt the object of impingment corrosion of molten metal, can prevent on the other hand the defects such as cracking that cast product causes because Local cooling is too fast, sand holes, white iron formation.Cast paint is of a great variety, substantially can be divided into two classes: water based paint and alcohol-base paint.Wherein alcohol-base paint is both curable through lighting after coating, does not need to dry, and can shorten the production cycle, simplifies technique, reduces drying plant investment, is to be cast a kind of quick drying paint that boundary is widely used, and has been widely used in the production of steel, iron, coloured foundry goods.

But in prior art, alcohol-base foundry coating has many defects, such as: suspension stability is poor, in long-distance transport and easily layering in depositing process, resistance to elevated temperatures is poor, hardness is low, a little less than poor chemical stability, low, the anti-stick grittiness of anti-metal performance of flushing etc., make alcohol-base foundry coating function singleness, cannot meet large-scale industrial production.

Summary of the invention

Object of the present invention is just to provide a kind of high-performance alcohol base casting coatings and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of high-performance alcohol base casting coatings, it is characterized in that, made by the raw material of following weight portion: oxalic acid 1-2, expanded perlite 2-3, sepiolite cashmere 1.1-2.1, clay 0.7-1.2, quartzy 45-60, white fused alumina 35-50, rosin 4-6, nano lanthanum oxide 0.3-0.6, ethylene glycol 1.2-3.6, butyl glycol ether 0.6-1.2, house refuse 10-13, used oil 2-3, ethanol 40-60, auxiliary agent 3-6.

Described auxiliary agent is made up of following raw materials in part by weight: pig bone 25-30, rectorite 35-45, metakaolin 65-95, silicon ash 30-45, Silane coupling reagent KH-570 2-6, Ludox 0.4-0.8, nano carborundum powder 1-3, nano ferriferrous oxide 1.2-3.4, angelica powder 0.6-1.2, sodium carboxymethyl starch 0.4-0.9, carboxymethyl cellulose 4-7, suitable quantity of water, its preparation method is by pig bone, rectorite, metakaolin is put into calcining furnace and calcine 2-3 hour at 560-680 DEG C, take out, the hydrochloric acid solution of putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, stirring pulping adds water, simultaneously, add nano carborundum powder, Ludox, sodium carboxymethyl starch grinds, the dry xeraphium that makes of spraying, get silicon ash, angelica powder and add Silane coupling reagent KH-570 to stir to make slurry, plus nano tri-iron tetroxide grinds 20-30 minute, makes the silicon ash of modification, by the grinding granulation that adds water of the above-mentioned xeraphium making, modified silicon ash and other residual components, dry and get final product.

The preparation method of described a kind of high-performance alcohol base casting coatings, is characterized in that comprising the following steps:

(1) put into retort calcination processing 3-4 hour at 405-520 DEG C after house refuse is picked, take out, the hydrochloric acid solution of putting into 10-12% soaks 3-6 hour, filters and takes out, and use clear water cyclic washing, dries pulverizing, sprays vaporific used oil and stirs and evenly mixs;

(2) together with the ethanol of product above-mentioned steps being made and clay, 1/4 weight, grind and be heated to 140-160 DEG C, add nano lanthanum oxide to keep temperature to stir 1-2 hour, be cooled to 50-60 DEG C and add oxalic acid to grind 30-40 minute, the dry xeraphium that makes of spraying;

(3) expanded perlite and quartz are put into calcining furnace and calcine 2-4 hour at 530-680 DEG C, take out cooling, pulverize, add the ethanol of 1/5 weight to stir, leave standstill 10-12 hour, then add ethylene glycol, butyl glycol ether, rosin heating to 70-80 DEG C of stirring 30-40 minute;

(4) white fused alumina is dropped in reactor, add the ethanol agitation grinding 10-15 minute of sepiolite cashmere and surplus, add again step (2), (3) product, auxiliary agent, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grind until fineness reaches 50 μ m below.

The present invention has following beneficial effect: raw material sources of the present invention are convenient, cost is low, preparation technology is easy, easy control and non-environmental-pollution; The coating that the present invention makes has the advantages such as strong adhesion difficult drop-off, gas permeability is good, high temperature resistant, cast resistance is little, is coated in the product making on grinding tool without scab or sand holes, applied range.

Detailed description of the invention

Described a kind of high-performance alcohol base casting coatings, it is characterized in that, made by the raw material of following weight portion: oxalic acid 1, expanded perlite 2, sepiolite cashmere 1.1, clay 0.7, quartz 46, white fused alumina 50, rosin 4, nano lanthanum oxide 0.3, ethylene glycol 2.2, butyl glycol ether 1.2, house refuse 10, used oil 3, ethanol 46, auxiliary agent 3.

Described auxiliary agent is made up of following raw materials in part by weight: pig bone 27, rectorite 42, metakaolin 85, silicon ash 30, Silane coupling reagent KH-570 2, Ludox 0.4, nano carborundum powder 1, nano ferriferrous oxide 1.2, angelica powder 1.2, sodium carboxymethyl starch 0.4, carboxymethyl cellulose 4, suitable quantity of water, its preparation method is by pig bone, rectorite, metakaolin is put into calcining furnace and calcine 2-3 hour at 560-680 DEG C, take out, the hydrochloric acid solution of putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, stirring pulping adds water, simultaneously, add nano carborundum powder, Ludox, sodium carboxymethyl starch grinds, the dry xeraphium that makes of spraying, get silicon ash, angelica powder and add Silane coupling reagent KH-570 to stir to make slurry, plus nano tri-iron tetroxide grinds 20-30 minute, makes the silicon ash of modification, by the grinding granulation that adds water of the above-mentioned xeraphium making, modified silicon ash and other residual components, dry and get final product.

Preparation method comprises the following steps:

(1) put into retort calcination processing 3-4 hour at 405-520 DEG C after house refuse is picked, take out, the hydrochloric acid solution of putting into 10-12% soaks 3-6 hour, filters and takes out, and use clear water cyclic washing, dries pulverizing, sprays vaporific used oil and stirs and evenly mixs;

(2) together with the ethanol of product above-mentioned steps being made and clay, 1/4 weight, grind and be heated to 140-160 DEG C, add nano lanthanum oxide to keep temperature to stir 1-2 hour, be cooled to 50-60 DEG C and add oxalic acid to grind 30-40 minute, the dry xeraphium that makes of spraying;

(3) expanded perlite and quartz are put into calcining furnace and calcine 2-4 hour at 530-680 DEG C, take out cooling, pulverize, add the ethanol of 1/5 weight to stir, leave standstill 10-12 hour, then add ethylene glycol, butyl glycol ether, rosin heating to 70-80 DEG C of stirring 30-40 minute;

(4) white fused alumina is dropped in reactor, add the ethanol agitation grinding 10-15 minute of sepiolite cashmere and surplus, add again step (2), (3) product, auxiliary agent, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grind until fineness reaches 50 μ m below.

The operation technique index of processing the cast paint obtaining by above-described embodiment is as follows:

(1) solid content: 31.32%;

(2) coating abrasion performance: 0.49;

(3) coating density: 1.52g/cm ³;

(4) intensity of paint coatings: 550g/mm after 1200 DEG C of roastings;

(5) the normal temperature gas permeability of coating: 12.4cm ²(kpamin) ^-1;

(6) hot permeability of coating: 21.6 cm ²(kpamin) ^-1;

(7) coating, oven dry, cooling rear appearance of coat: the uniform coating of flawless, nothing foaming and macroscopic pin hole.

Claims (2)

1. a high-performance alcohol base casting coatings, it is characterized in that, made by the raw material of following weight portion: oxalic acid 1-2, expanded perlite 2-3, sepiolite cashmere 1.1-2.1, clay 0.7-1.2, quartzy 45-60, white fused alumina 35-50, rosin 4-6, nano lanthanum oxide 0.3-0.6, ethylene glycol 1.2-3.6, butyl glycol ether 0.6-1.2, house refuse 10-13, used oil 2-3, ethanol 40-60, auxiliary agent 3-6, described auxiliary agent is made up of following raw materials in part by weight: pig bone 25-30, rectorite 35-45, metakaolin 65-95, silicon ash 30-45, Silane coupling reagent KH-570 2-6, Ludox 0.4-0.8, nano carborundum powder 1-3, nano ferriferrous oxide 1.2-3.4, angelica powder 0.6-1.2, sodium carboxymethyl starch 0.4-0.9, carboxymethyl cellulose 4-7, suitable quantity of water, its preparation method is by pig bone, rectorite, metakaolin is put into calcining furnace and calcine 2-3 hour at 560-680 DEG C, take out, the hydrochloric acid solution of putting into 8-12% soaks 4-5 hour, filter and take out, use clear water cyclic washing, dry and pulverize, stirring pulping adds water, simultaneously, add nano carborundum powder, Ludox, sodium carboxymethyl starch grinds, the dry xeraphium that makes of spraying, get silicon ash, angelica powder and add Silane coupling reagent KH-570 to stir to make slurry, plus nano tri-iron tetroxide grinds 20-30 minute, makes the silicon ash of modification, by the grinding granulation that adds water of the above-mentioned xeraphium making, modified silicon ash and other residual components, dry and get final product.

2. the preparation method of a kind of high-performance alcohol base casting coatings according to claim 1, is characterized in that comprising the following steps:

(1) put into retort calcination processing 3-4 hour at 405-520 DEG C after house refuse is picked, take out, the hydrochloric acid solution of putting into 10-12% soaks 3-6 hour, filters and takes out, and use clear water cyclic washing, dries pulverizing, sprays vaporific used oil and stirs and evenly mixs;

(2) together with the ethanol of product above-mentioned steps being made and clay, 1/4 weight, grind and be heated to 140-160 DEG C, add nano lanthanum oxide to keep temperature to stir 1-2 hour, be cooled to 50-60 DEG C and add oxalic acid to grind 30-40 minute, the dry xeraphium that makes of spraying;

(3) expanded perlite and quartz are put into calcining furnace and calcine 2-4 hour at 530-680 DEG C, take out cooling, pulverize, add the ethanol of 1/5 weight to stir, leave standstill 10-12 hour, then add ethylene glycol, butyl glycol ether, rosin heating to 70-80 DEG C of stirring 30-40 minute;

(4) white fused alumina is dropped in reactor, add the ethanol agitation grinding 10-15 minute of sepiolite cashmere and surplus, add again step (2), (3) product, auxiliary agent, temperature of reaction kettle is slowly risen to 75-85 DEG C simultaneously, keep temperature to stir 20-40 minute, grind until fineness reaches 50 μ m below.