CN111590015A - Casting mold material for numerical control machining and mold manufacturing method - Google Patents
Casting mold material for numerical control machining and mold manufacturing method Download PDFInfo
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- CN111590015A CN111590015A CN202010282405.4A CN202010282405A CN111590015A CN 111590015 A CN111590015 A CN 111590015A CN 202010282405 A CN202010282405 A CN 202010282405A CN 111590015 A CN111590015 A CN 111590015A
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- numerical control
- casting mold
- mold material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/18—Finishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A casting mold material for numerical control machining and a mold manufacturing method comprise the following raw materials in parts by weight: 30-40 parts of industrial brine, 10-18 parts of magnesium oxide and 55-60 parts of sawdust. The suitable production temperature of the casting die material is 0-40 ℃. According to the invention, through improving the formula of the covering material of the casting die, the adaptability of the formula material to the production environment change is effectively improved, the adhesion degree of the covering material of the die to a wood frame is enhanced, the uniformity of coating and covering, the product forming degree and the overall strength of the die are improved, and the die product can be finely finished by matching with a numerical control machine tool, so that the processing precision, the quality and the yield of the die of the guide ring casting are improved.
Description
Technical Field
The invention relates to the production field of casting molds, in particular to a casting mold material for numerical control machining and a mold manufacturing method.
Background
With the continuous increase of production scale and production capacity of casting mold enterprises and the continuous improvement and innovation of production technology, the problems of high worker loss rate and failure of backup force of casting mold enterprises are increasingly highlighted, wherein how to reduce cost, improve productivity and improve product quality of casting mold enterprises becomes a focus of attention.
The traditional casting die method is characterized in that a skilled worker carries out manual drawing, manual cutting and manual assembly on a die, the production efficiency of a product is low, the production period is long, the product precision is low (the size error value is +/-2-3 mm), the outer surface of the product is rough, the surface coating treatment cannot be carried out, and the labor cost is high.
With the continuous improvement and innovation of the production technology of the casting mold, the numerical control machining process is tried and applied in the production field of the casting mold so as to achieve the aims of high yield, efficiency improvement and quality improvement of the numerical control machining casting mold.
The traditional casting die covering material is poor in product strength, wear resistance, adhesion, surface gloss, non-deformability and the like, only suitable for manual process operation and difficult to be applied to numerical control machine tool machining, especially large arc surfaces, and due to the fact that local strength of the die is not enough, the surface gloss of the product is difficult to guarantee after numerical control machining, and product quality is affected.
Disclosure of Invention
The invention aims to provide a casting die material for numerical control machining and a die manufacturing method, which effectively improve the adaptability of a formula material to production environment change, enhance the adhesion degree of the die covering material to a wood frame, improve the uniformity of coating and covering, the product forming degree and the overall strength of the die by improving the formula of the casting die covering material, and can be well matched with a numerical control machine to carry out fine finishing machining on a die product, thereby improving the machining precision, quality and yield of a guide ring casting die.
In order to achieve the purpose, the invention adopts the following technical scheme:
a casting mold material for numerical control machining comprises the following raw materials in parts by weight: 30-40 parts of industrial brine, 10-18 parts of magnesium oxide and 55-60 parts of sawdust.
The suitable production temperature of the casting die material is 0-40 ℃.
When the production temperature is 0-15 ℃, the casting mould material comprises the following raw materials in parts by weight: 30-40 parts of industrial brine, more than or equal to 15 parts and less than or equal to 18 parts of magnesium oxide, and more than or equal to 55 parts and less than or equal to 57 parts of sawdust.
When the production temperature is higher than 5 ℃ and lower than or equal to 40 ℃, the casting mold material comprises the following raw materials in parts by weight: 30-40 parts of industrial brine, less than 15 parts of magnesium oxide with the concentration of 10-60 parts of sawdust with the concentration of 57-60 parts.
A method of manufacturing a working mold using a casting mold material for numerical control machining, comprising the steps of:
1) manufacturing a wood frame according to the processed workpiece;
2) uniformly mixing the raw materials according to the weight parts, then covering and molding the frame, tamping, airing and solidifying to obtain a primary processing mold;
3) performing numerical control programming and tool path orientation positioning according to the size and precision requirements of the product, and performing finishing molding on the numerical control machine on the primary processing die obtained in the step 2);
4) the putty and the Xinna water are uniformly mixed, then uniformly and flatly coated on a mould after finishing and molding, and the nitryl varnish is sprayed after manual polishing.
And 3) adding fossil powder into the part of the product with the fillet of more than 15 degrees in the step 2) according to the raw material formula by combining the temperature, wherein the adding proportion is that the casting mould material: 4-5 of talcum powder: 1.
the mixing ratio of the atomic ash and the Xinna water in the step 4) is atomic ash: benenawater 95-99: 1.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a casting die material for numerical control machining and a die manufacturing method, which effectively improve the adaptability of a formula material to production environment change, enhance the adhesion degree of the die covering material to a wood frame, improve the uniformity of coating and covering, the product forming degree and the overall strength of a die by improving the formula of the casting die covering material, and can be well matched with a numerical control machine to carry out fine finishing machining on a die product, thereby improving the machining precision, quality and yield of a guide ring casting die.
The casting die material has strong adhesive force to a frame, has high cohesiveness, product forming degree and strength after being dried and solidified, has fine and compact structure and good uniformity at a coating covering part, is suitable for finish machining and finishing of a product by a numerical control machine tool, is smooth and fine in surface particularly after numerical control machining of a product fillet, is favorable for casting a sand mold and improves the surface quality of a casting.
The material of the invention adopts the numerical control machine tool to finish the material, thus improving the processing precision of the product (the size error value is +/-0.5 mm); the glossiness and the fine feeling of the surface of the die are increased, and the surface coating treatment is facilitated; effectively improve production efficiency and save labor cost.
Detailed Description
The following examples are provided to further illustrate the embodiments of the present invention:
example 1:
when the production temperature is 0-15 ℃, the casting mould material comprises the following raw materials in parts by weight: 30 parts of industrial brine, 15 parts of industrial brine and 55 parts of industrial brine.
A method of manufacturing a working mold using a casting mold material for numerical control machining, comprising the steps of:
1) manufacturing a wood frame according to the processed workpiece;
2) uniformly mixing the raw materials according to the weight parts, then covering and molding the frame, tamping, airing and solidifying to obtain a primary processing mold;
and (3) adding fossil powder into the part of the product with the fillet above 15 degrees according to the raw material formula in proportion by combining the temperature, wherein the adding proportion is that the casting mould material is as follows: talc powder 4: 1, adding 25 parts of talcum powder;
3) performing numerical control programming and tool path orientation positioning according to the size and precision requirements of the product, and performing finishing molding on the numerical control machine on the primary processing die obtained in the step 2);
4) the putty and the Xinna water are uniformly mixed, then are uniformly and flatly coated on a mould after finishing and shaping, are manually polished, are smooth and mellow visually from the appearance, and are sprayed with the nitro-varnish.
The mixing ratio of the atomic ash and the Xinna water in the step 4) is atomic ash: neral water 99: 1.
Example 2:
when the production temperature is higher than 5 ℃ and lower than or equal to 40 ℃, the casting mold material comprises the following raw materials in parts by weight: 30 parts, 10 parts and 60 parts of industrial brine.
A method of manufacturing a working mold using a casting mold material for numerical control machining, comprising the steps of:
1) manufacturing a wood frame according to the processed workpiece;
2) uniformly mixing the raw materials according to the weight parts, then covering and molding the frame, tamping, airing and solidifying to obtain a primary processing mold;
and (3) adding fossil powder into the part of the product with the fillet above 15 degrees according to the raw material formula in proportion by combining the temperature, wherein the adding proportion is that the casting mould material is as follows: talc powder 5: 1, adding 20 parts of talcum powder;
3) performing numerical control programming and tool path orientation positioning according to the size and precision requirements of the product, and performing finishing molding on the numerical control machine on the primary processing die obtained in the step 2);
4) the putty and the Xinna water are uniformly mixed, then are uniformly and flatly coated on a mould after finishing and shaping, are manually polished, are smooth and mellow visually from the appearance, and are sprayed with the nitro-varnish.
The mixing ratio of the atomic ash and the Xinna water in the step 4) is atomic ash: benalose water 98: 1.
The frame of the invention can also be processed by numerical control. Establishing a 3-dimensional model according to drawing design, and decomposing the established three-dimensional model according to actual manufacturing requirements; and carrying out numerical control programming and tool path orientation positioning according to the decomposition diagram, and preparing materials by utilizing a numerical control machine tool to accurately process the frame.
The product frame is assembled according to the exploded view.
The formula material is used for finishing and molding the frame, and the raw material formula is blended according to the production temperature to form the covering mixed material. The product part has more than 15 degrees of round angle, and talcum powder is required to be added according to the formula ratio of the product at the temperature.
And carrying out numerical control programming and tool path orientation positioning according to the size of the qualified product and delivery requirements, and automatically processing the die product according to the programmed processing program.
The product was then finished in appearance using putty, pinacol and nitrovarnish.
And (4) reaching the standard of qualified products from the aspects of appearance, quality and production process, finely boxing and packaging the products, and waiting for the products to leave the factory.
Claims (7)
1. A casting mould material for numerical control machining is characterized by comprising the following raw materials in parts by weight: 30-40 parts of industrial brine, 10-18 parts of magnesium oxide and 55-60 parts of sawdust.
2. The casting mold material for numerical control machining according to claim 1, characterized in that the production suitable temperature of the casting mold material is 0 ℃ to 40 ℃.
3. The casting mold material for numerical control machining according to claim 1, wherein the casting mold material comprises the following raw materials in parts by weight at a production temperature of 0-15 ℃: 30-40 parts of industrial brine, more than or equal to 15 parts and less than or equal to 18 parts of magnesium oxide, and more than or equal to 55 parts and less than or equal to 57 parts of sawdust.
4. The casting mold material for numerical control machining according to claim 1, wherein when the production temperature is more than 15 ℃ and less than or equal to 40 ℃, the casting mold material comprises the following raw materials in parts by weight: 30-40 parts of industrial brine, less than 15 parts of magnesium oxide with the concentration of 10-60 parts of sawdust with the concentration of 57-60 parts.
5. A method of manufacturing a working mold using the casting mold material for numerical control working according to any one of claims 1 to 4, characterized by comprising the steps of:
1) manufacturing a wood frame according to the processed workpiece;
2) uniformly mixing the raw materials according to the weight parts, then covering and molding the frame, tamping, airing and solidifying to obtain a primary processing mold;
3) performing numerical control programming and tool path orientation positioning according to the size and precision requirements of the product, and performing finishing molding on the numerical control machine on the primary processing die obtained in the step 2);
4) the putty and the Xinna water are uniformly mixed, then uniformly and flatly coated on a mould after finishing and molding, and the nitryl varnish is sprayed after manual polishing.
6. The method for manufacturing the processing mold from the casting mold material for numerical control processing according to claim 5, wherein the part of the product with the fillet of more than 15 degrees in the step 2) is added with the fossil meal according to the proportion by combining the temperature, and the proportion of the added fossil meal is that of the casting mold material: 4-5 of talcum powder: 1.
7. the method for manufacturing the processing mold from the casting mold material for numerical control processing according to claim 5, wherein the mixing ratio of the atomic ash to the water in the step 4) is atomic ash: benenawater 95-99: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282405.4A CN111590015A (en) | 2020-04-12 | 2020-04-12 | Casting mold material for numerical control machining and mold manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282405.4A CN111590015A (en) | 2020-04-12 | 2020-04-12 | Casting mold material for numerical control machining and mold manufacturing method |
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| Publication Number | Publication Date |
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| CN111590015A true CN111590015A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010282405.4A Pending CN111590015A (en) | 2020-04-12 | 2020-04-12 | Casting mold material for numerical control machining and mold manufacturing method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111706A (en) * | 1976-05-24 | 1978-09-05 | Bate Micheal Donald | Sealing and filling material for metallurgical applications |
| JPS589740A (en) * | 1981-07-10 | 1983-01-20 | Yamakawa Sangyo Kk | Mold coating method into multiple layers |
| CN102909317A (en) * | 2011-08-05 | 2013-02-06 | 广西玉柴机器股份有限公司 | Sand casting wood former and production method thereof |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN103537617A (en) * | 2013-10-09 | 2014-01-29 | 宁夏共享集团有限责任公司 | Manufacturing process of mold for casting novel environment-friendly wood substitute material |
| CN107900283A (en) * | 2017-11-17 | 2018-04-13 | 珠海万博科学服务有限公司 | A kind of casting molds of new generation wood environment-friendly materials |
-
2020
- 2020-04-12 CN CN202010282405.4A patent/CN111590015A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111706A (en) * | 1976-05-24 | 1978-09-05 | Bate Micheal Donald | Sealing and filling material for metallurgical applications |
| JPS589740A (en) * | 1981-07-10 | 1983-01-20 | Yamakawa Sangyo Kk | Mold coating method into multiple layers |
| CN102909317A (en) * | 2011-08-05 | 2013-02-06 | 广西玉柴机器股份有限公司 | Sand casting wood former and production method thereof |
| CN103537617A (en) * | 2013-10-09 | 2014-01-29 | 宁夏共享集团有限责任公司 | Manufacturing process of mold for casting novel environment-friendly wood substitute material |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN107900283A (en) * | 2017-11-17 | 2018-04-13 | 珠海万博科学服务有限公司 | A kind of casting molds of new generation wood environment-friendly materials |
Non-Patent Citations (3)
| Title |
|---|
| 孟玉兴: ""菱苦土制造中大件铸造模型"", 《机械工人技术资料》 * |
| 机械工业职业技能鉴定指导中心编: "《高级模样工技术》", 31 May 1999, 机械工业出版社 * |
| 陈国桢: "《造型工手册》", 30 June 1985, 中国农业机械出版社 * |
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Application publication date: 20200828 |