CN114558981A - Novel anti-sulfurization casting coating - Google Patents
Novel anti-sulfurization casting coating Download PDFInfo
- Publication number
- CN114558981A CN114558981A CN202011360315.9A CN202011360315A CN114558981A CN 114558981 A CN114558981 A CN 114558981A CN 202011360315 A CN202011360315 A CN 202011360315A CN 114558981 A CN114558981 A CN 114558981A
- Authority
- CN
- China
- Prior art keywords
- parts
- containing material
- sulfur
- casting
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Abstract
The invention discloses a novel anti-sulfur-seepage casting coating, which relates to the field of coatings and comprises 400 parts of high-activity calcium-containing magnesium-containing material 200-containing material, 500 parts of precipitated calcium carbonate 200-containing material, 300 parts of calcined kaolin 100-containing material, 65-95 parts of furan resin sand, 55-85 parts of zircon powder, 15-45 parts of titanium dioxide, 5-9 parts of vegetable gum, 8-15 parts of suspending agent, 4-12 parts of surface additive and 30-60 parts of fatty alcohol-polyoxyethylene ether. The sulfur seepage prevention coating adopts a high-activity calcium-containing magnesium-containing material, and the infiltration of sulfur into molten metal is reduced by the reaction of calcium and magnesium elements and sulfur at high temperature; the invention uses the superfine active powder, increases the infiltration reaction of the coating to the sand mold, increases the contact area of the coating and the sand mold, and increases the sintering reaction effect; the product of the reaction with the casting forms a sintering layer on the surfaces of the casting and the sand mold, so that the sulfur element in the sand mold is further prevented from permeating into molten metal, the variation of molten metal tissues is reduced, and the influence of the sulfur in the curing agent in the furan resin sand on the casting material is solved.
Description
Technical Field
The invention relates to the field of coatings, in particular to a novel anti-sulfurization casting coating.
Background
The casting coating is a casting auxiliary material which is covered on the surface of a core in the casting process so as to improve the properties of surface fire resistance, chemical stability, molten metal scouring resistance, sand adhesion resistance and the like; the ZD coating is used for insulating heat and balancing temperature, and avoids the impact and the corrosivity of molten metal, thereby achieving the purposes of protecting a mould and prolonging the service life of the mould by more than 1/3; the casting coating can effectively prevent the casting product from cracking and white iron from forming due to too fast local cooling; the adsorption time of the casting coating is as long as 7 days, the air permeability is good, the acetylene smoke treatment can be used for replacing the use of the release agent in each demoulding process, and one casting can be poured and smoked once.
Furan resin sand is brownish red and amber viscous liquid, is slightly soluble in water, is easily soluble in organic solvents such as ester and ketone, and is an ideal sand (mould) core binder in the casting industry.
Sulfur is a harmful element in general, and causes hot shortness of steel, reduces ductility and toughness of steel, causes cracks in forging and rolling, is also unfavorable for welding performance, and reduces corrosion resistance, so that a sulfur content of less than 0.055% is generally required, and a high-quality steel of less than 0.040% is required. Machinability is improved by adding 0.08-0.20% sulphur to the steel, commonly known as free-cutting steel.
The casting coating comprises a refractory filler, a solvent, a binder, a suspending agent and a surface additive, sand grains generate binding power through the reaction of furan resin and a sulfonic acid curing agent in the production process of casting furan resin, sulfur in the furan resin sand permeates into molten metal in a gas form in the high-temperature pouring process to increase the sulfur content of the furan resin sand, and various low-melting-point sulfides of iron are generated to cause the abnormal internal organization structure and the formation of cracks in the molten metal in the cooling process.
Disclosure of Invention
The invention aims to: in order to solve the problem of influence of sulfur in a curing agent on casting materials, a novel anti-sulfurization casting coating is provided.
In order to achieve the purpose, the invention provides the following technical scheme: a novel anti-seepage casting coating comprises 400 parts of high-activity calcium-containing magnesium-containing material 200-containing material, 500 parts of precipitated calcium carbonate 200-containing material, 300 parts of calcined kaolin 100-containing material, 65-95 parts of furan resin sand, 55-85 parts of zircon powder, 15-45 parts of titanium dioxide, 5-9 parts of vegetable gum, 8-15 parts of suspending agent, 4-12 parts of surface additive, 30-60 parts of fatty alcohol-polyoxyethylene ether, 50-60 parts of refractory filler, 20-50 parts of solvent and 15-45 parts of defoaming agent.
Preferably, the solvent is ethanol.
Preferably, the defoaming agent is polyether modified silicone oil.
Preferably, the production steps comprise sequentially putting the high-activity calcium-containing magnesium-containing material, the precipitated calcium carbonate, the calcined kaolin, the furan resin sand, the zircon powder, the titanium dioxide, the vegetable gum, the suspending agent, the surface additive, the fatty alcohol-polyoxyethylene ether, the refractory filler, the solvent and the defoaming agent into a high-speed dispersion machine, and uniformly dispersing the raw materials by the high-speed dispersion machine.
Compared with the prior art, the invention has the beneficial effects that:
1. the sulfur seepage prevention coating adopts a high-activity calcium-containing magnesium-containing material, and the infiltration of sulfur into molten metal is reduced by the reaction of calcium and magnesium elements and sulfur at high temperature;
2. the invention uses the superfine active powder, increases the infiltration reaction of the coating to the sand mold, increases the contact area of the coating and the sand mold, and increases the sintering reaction effect;
3. the product of the reaction with the casting forms a sintering layer on the surfaces of the casting and the sand mold, so that the sulfur element in the sand mold is further prevented from permeating into molten metal, the variation of molten metal tissues is reduced, and the influence of the sulfur in the curing agent in the furan resin sand on the casting material is solved.
Detailed Description
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
A novel anti-seepage casting coating comprises 400 parts of high-activity calcium-containing magnesium-containing material 200-containing material, 500 parts of precipitated calcium carbonate 200-containing material, 300 parts of calcined kaolin 100-containing material, 65-95 parts of furan resin sand, 55-85 parts of zircon powder, 15-45 parts of titanium dioxide, 5-9 parts of vegetable gum, 8-15 parts of suspending agent, 4-12 parts of surface additive, 30-60 parts of fatty alcohol-polyoxyethylene ether, 50-60 parts of refractory filler, 20-50 parts of solvent and 15-45 parts of defoaming agent.
The solvent is ethanol.
The defoaming agent is polyether modified silicone oil.
The production steps are that high-activity calcium-containing magnesium-containing material, precipitated calcium carbonate, calcined kaolin, furan resin sand, zircon powder, titanium dioxide, vegetable gum, suspending agent, surface additive, fatty alcohol-polyoxyethylene ether, refractory filler, solvent and defoaming agent are sequentially put into a high-speed dispersion machine, and the raw materials are uniformly dispersed by the high-speed dispersion machine.
Example one
200 parts of high-activity calcium-containing magnesium-containing material, 200 parts of precipitated calcium carbonate, 100 parts of calcined kaolin, 65 parts of furan resin sand, 55 parts of zircon powder, 15 parts of titanium dioxide, 5 parts of vegetable gum, 8 parts of suspending agent, 4 parts of surface additive, 30 parts of fatty alcohol-polyoxyethylene ether, 50 parts of refractory filler, 20 parts of solvent and 15 parts of defoaming agent.
Example two
400 parts of high-activity calcium-containing magnesium-containing material, 500 parts of precipitated calcium carbonate, 300 parts of calcined kaolin, 95 parts of furan resin sand, 85 parts of zircon powder, 45 parts of titanium dioxide, 9 parts of vegetable gum, 15 parts of suspending agent, 12 parts of surface additive, 60 parts of fatty alcohol-polyoxyethylene ether, 60 parts of refractory filler, 50 parts of solvent and 45 parts of defoaming agent.
EXAMPLE III
300 parts of high-activity calcium-containing magnesium-containing material, 450 parts of deposited calcium carbonate, 150 parts of calcined kaolin, 85 parts of furan resin sand, 75 parts of zircon powder, 35 parts of titanium dioxide, 9 parts of vegetable gum, 12 parts of suspending agent, 8 parts of surface additive, 55 parts of fatty alcohol-polyoxyethylene ether, 55 parts of refractory filler, 45 parts of solvent and 35 parts of defoaming agent.
The experimental analysis and practice of experimenters result in the best three effects of the embodiment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. A novel anti-seepage casting coating comprises 400 parts of high-activity calcium-containing magnesium-containing material 200-containing material, 500 parts of precipitated calcium carbonate 200-containing material, 300 parts of calcined kaolin 100-containing material, 65-95 parts of furan resin sand, 55-85 parts of zircon powder, 15-45 parts of titanium dioxide, 5-9 parts of vegetable gum, 8-15 parts of suspending agent, 4-12 parts of surface additive, 30-60 parts of fatty alcohol-polyoxyethylene ether, 50-60 parts of refractory filler, 20-50 parts of solvent and 15-45 parts of defoaming agent.
2. The novel impervious sulfur casting coating as claimed in claim 1, wherein: the solvent is ethanol.
3. The novel anti-sulfurization casting paint according to claim 1, characterized in that: the defoaming agent is polyether modified silicone oil.
4. The novel anti-sulfurization casting paint according to claim 1, characterized in that: the production steps are that high-activity calcium-containing magnesium-containing material, precipitated calcium carbonate, calcined kaolin, furan resin sand, zircon powder, titanium dioxide, vegetable gum, suspending agent, surface additive, fatty alcohol-polyoxyethylene ether, refractory filler, solvent and defoaming agent are sequentially put into a high-speed dispersion machine, and the raw materials are uniformly dispersed by the high-speed dispersion machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360315.9A CN114558981B (en) | 2020-11-27 | 2020-11-27 | Sulfur-seepage-proof casting coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360315.9A CN114558981B (en) | 2020-11-27 | 2020-11-27 | Sulfur-seepage-proof casting coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114558981A true CN114558981A (en) | 2022-05-31 |
| CN114558981B CN114558981B (en) | 2023-09-01 |
Family
ID=81711326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011360315.9A Active CN114558981B (en) | 2020-11-27 | 2020-11-27 | Sulfur-seepage-proof casting coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114558981B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844945A (en) * | 1981-09-11 | 1983-03-16 | Nippon Stainless Steel Co Ltd | Mold coating material for prevention of carburization and sulfurization used for organic self-hardening mold |
| JPH07132344A (en) * | 1993-11-09 | 1995-05-23 | Daihatsu Kinzoku Kogyo Kk | Method for preventing sulfurization of organic self-curing casting mold and its mold coat |
| CN101817058A (en) * | 2010-03-30 | 2010-09-01 | 深圳市景鼎现代科技有限公司 | Shield type coating composition and preparation process of coating thereof |
| CN102328018A (en) * | 2011-10-28 | 2012-01-25 | 上海市机械制造工艺研究所有限公司 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
| CN106180542A (en) * | 2016-08-17 | 2016-12-07 | 高红星 | Furan Resin-Bonded Sand wind-powered electricity generation G. Iron Castings surface anti-seepage sulfur coating |
| CN106734874A (en) * | 2016-12-13 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of resin bonded sand mould casts antisurlphuizing coating |
| CN106734873A (en) * | 2016-11-10 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of antisurlphuizing coating |
| CN109575746A (en) * | 2018-10-31 | 2019-04-05 | 安徽开林新材料股份有限公司 | A kind of marine water coating that surface is smooth |
-
2020
- 2020-11-27 CN CN202011360315.9A patent/CN114558981B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844945A (en) * | 1981-09-11 | 1983-03-16 | Nippon Stainless Steel Co Ltd | Mold coating material for prevention of carburization and sulfurization used for organic self-hardening mold |
| JPH07132344A (en) * | 1993-11-09 | 1995-05-23 | Daihatsu Kinzoku Kogyo Kk | Method for preventing sulfurization of organic self-curing casting mold and its mold coat |
| CN101817058A (en) * | 2010-03-30 | 2010-09-01 | 深圳市景鼎现代科技有限公司 | Shield type coating composition and preparation process of coating thereof |
| CN102328018A (en) * | 2011-10-28 | 2012-01-25 | 上海市机械制造工艺研究所有限公司 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
| CN106180542A (en) * | 2016-08-17 | 2016-12-07 | 高红星 | Furan Resin-Bonded Sand wind-powered electricity generation G. Iron Castings surface anti-seepage sulfur coating |
| CN106734873A (en) * | 2016-11-10 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of antisurlphuizing coating |
| CN106734874A (en) * | 2016-12-13 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of resin bonded sand mould casts antisurlphuizing coating |
| CN109575746A (en) * | 2018-10-31 | 2019-04-05 | 安徽开林新材料股份有限公司 | A kind of marine water coating that surface is smooth |
Non-Patent Citations (2)
| Title |
|---|
| 孙宝金;崔世海;李延春;: "防渗硫涂料的研究及应用", 铸造设备与工艺, no. 01, pages 439 - 441 * |
| 李世平, 吕德志, 李玲, 郑宏伟, 宋会宗, 周静一, 黄彦斌, 李朝社: "防渗硫涂料在呋喃树脂自硬砂铸钢件生产中的应用研究", 铸造, no. 07, pages 31 - 34 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114558981B (en) | 2023-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105170968B (en) | A kind of submersed nozzle | |
| CN103624220A (en) | Production technology of explosion-proof and corrosion-proof motor casing | |
| CN110655391A (en) | Semi-light ladle permanent layer castable and method for preparing ladle permanent layer by using same | |
| CN1390661A (en) | Paint for casting Mg alloy with metal mould and its preparing process | |
| CN111574208A (en) | Preparation method of corundum-zirconium mullite air brick with high thermal shock resistance | |
| CN114558981A (en) | Novel anti-sulfurization casting coating | |
| CN104289706B (en) | Submersed water gap applied to electromagnetic stirring process | |
| RU2297300C1 (en) | Protecting-releasing coating and its application method | |
| CN112756559A (en) | Sand core made of special precoated sand | |
| CN104032238A (en) | Preparation method of corrosion preventing and impact resisting valve | |
| CN106756585A (en) | A kind of production technology of automobile engine to exhaust joint | |
| CN103572118A (en) | Magnesium-aluminum alloy and production method thereof | |
| CN111618236A (en) | Water-based paint for aluminum-copper alloy casting lost foam | |
| CN102424592B (en) | Zirconia slide plate and preparation method thereof | |
| US20190224745A1 (en) | Refractory coating composition for making facings on temporary molds or on cores for iron and steel casting operations | |
| CN111014572B (en) | White corundum paint for water-based large steel castings and preparation method thereof | |
| CN107602137A (en) | A kind of moulding by casting converter taphole inner nozzle brick and preparation method thereof | |
| CN108273966A (en) | A kind of processing technology of rich chromium cast iron pipe | |
| CN104961486A (en) | Working lining castable | |
| CN114907038A (en) | Heat-insulating coating for ductile iron resin sand mold and preparation method and application thereof | |
| CN103372637B (en) | Crystallizer casting powder | |
| CN108500205A (en) | A kind of technique reducing sand casting cast(ing) surface stomata | |
| WO2015044378A1 (en) | Carbon-containing or carbon-bonded refractory products with a hybrid glazing system, and method for producing same | |
| KR20200054418A (en) | Reusable magnesia-carbon refractories | |
| CN107473753B (en) | High-thermal-shock microporous chromium-free unburned brick for RH refining furnace and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |