CN1644274A - Continuous double-metal cast forming method - Google Patents
Continuous double-metal cast forming method Download PDFInfo
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- CN1644274A CN1644274A CN 200510004890 CN200510004890A CN1644274A CN 1644274 A CN1644274 A CN 1644274A CN 200510004890 CN200510004890 CN 200510004890 CN 200510004890 A CN200510004890 A CN 200510004890A CN 1644274 A CN1644274 A CN 1644274A
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Abstract
A continuous casting technology for the bimetal workpiece includes such steps as preparing lower metal mould and upper sand mould, respectively smelting the hard metal and the ordinary metal, pouring the molten hard metal, pouring the molten ordinary metal, solidifying, demoulding, ordinary-temp ageing, and removing sand and riser head. Its advantages are high productivity and low cost.
Description
Technical field
The present invention relates to a kind of continuous double-metal cast forming method.
Background technology
At present, twice moulding generally adopted in the casting of bimetallic material, with the first moulding of hard metal material part, is parallels moulding again with it after unpacking then, carries out common metal material part moulding by casting again, and its complex process, bimetallic junction are poor with joint efforts; And traditional high manganese steel casting then through quench hot, obtains the austenitic matrix tissue by sand casting, and above-mentioned two kinds of method complex process are difficult for grasping, and simultaneously, the cycle is long, the cost height.
Summary of the invention
Its purpose of the present invention is: improve a kind of continuous double-metal cast forming method, its technology is simple, and operation is simplified, and is with short production cycle, and cost reduces, and production efficiency improves, and the part of two kinds of materials of production is in conjunction with firm, and improve service life.
The present invention is achieved in that a kind of continuous double-metal cast forming method, comprising: hard metal mark material and common metal material, and it is characterized in that: (one) moulding: nowel is a metal mold, top box is a sand mold; (2) melting: above-mentioned two kinds of metal materials are distinguished melting to tapping temperature by two stoves simultaneously; (3) cast: cast hard metal material is to flask joint earlier, and then, cast common metal material is to the rising head top; (4) post-solidification open type, room temperature ageing is handled; (5) rising head is cut in sand removal.Described hard metal material is the rich chromium cast iron material, and it is matrix with Fe, wherein contains C:2.4-2.6%, Si:0.6-0.8%, Mn:0..6-0.8%, Cr:12%, Mo:0.6-1%, Cu:0.5%, S＜0.1%, P＜01%; Described common metal material is the medium carbon steel material, and it is matrix with Fe, wherein contains C:0.3-0.5%, Si:0.3-0.5%, Mn:0.7-0.9%, Cr:0.4-0.5%, S＜0.05%, P＜0.02%.Described hard metal mark material and common metal material are carried out stokehold chemical examination program before coming out of the stove, modified in stove, come out of the stove when composition reaches mentioned component and tapping temperature.Described rich chromium cast iron material molten iron tapping temperature is 1400-1450 ℃, and pouring temperature is 135-1420 ℃.The tapping temperature of described medium carbon steel material molten steel is 1550-1600 ℃, and pouring temperature is 1450-1520 ℃.The poring rate of described rich chromium cast iron material molten iron is faster than the poring rate of medium carbon steel material.800-900 ℃ of described open form temperature.Described metal mold is a mould heat resisting steel, and described sand mold is a greensand mold.In upper and lower type, be coated with the interfacial separation agent of refractory material.
The moulding of two kinds of metal material continuous pourings of the present invention one-step casting forms metallographic structure and intensity, toughness and the hardness that needs, its technology is simple, operation is simplified, with short production cycle, cost has reduced 40-50%, production efficiency has improved more than 2 times, and its two kinds of materials of the part of production are in conjunction with firm, and improved more than the twice service life.
Elaborate with accompanying drawing in conjunction with the embodiments.
Description of drawings
Hammer embodiment schematic diagram is got rid of in Fig. 1 the present invention casting;
Fig. 2 the present invention casts the firm and hard illustration intention of executing in Hubei Province;
Fig. 3 casting liner plate embodiment of the present invention schematic diagram;
Accompanying drawing number
1, part 101, hard metal material 102, common metal material 2, case clamp
3, rising head guiding principle water 301, cast gate 4, rising head 5, nowel 501, top box
The specific embodiment
Embodiment 1: cast with the present invention and get rid of hammer technology
(1) moulding:
As shown in Figure 1: adopt mould steel, high chromium heat resisting steel to make nowel, top box adopts wet sandbox type combined, and black (in vain) lead powder and or its coating are adopted in the interfacial separation agent of (being general cold type moulding) above-mentioned refractory material.
(2) melting of selecting materials: with the melting respectively of two electric furnaces.Described hard metal mark material 10 and common metal material 102 are carried out stokehold chemical examination program before coming out of the stove: the hard metal material is the rich chromium cast iron material, it is matrix with Fe, wherein contain C:2.4-2.6%, Si:0.6-0.8%, Mn:0..6-0.8%, Cr:12%, Mo:0.6-1%, Cu:0.5%, S＜0.1%, P＜01%; Described common metal material is the medium carbon steel material, and it is matrix with Fe, wherein contains C:0.3-0.5%, Si:0.3-0.5%, Mn:0.7-0.9%, Cr:0.4-0.5%, S＜0.05%, P＜0.02%.The tapping temperature of described rich chromium cast iron material molten iron is 1400-1450 ℃, and the tapping temperature of described medium carbon steel material molten steel is 1550-1600 ℃.
(3) cast: pour into a mould rich chromium cast iron material molten iron earlier, its pouring temperature is 1350-1420 ℃.Then pour into a mould medium carbon steel material molten steel, its pouring temperature is 1450-1520 ℃.
(4) post-solidification open type, the low temperature aging of 800-900 ℃ of open form is handled.
(5) sand removal, cut rising head.
Embodiment 2: cast Hubei Province plate technology with the present invention
As shown in Figure 2, moulding, the melting of selecting materials, cast, post-solidification open type, sand removal, cut rising head, repeat no more with embodiment 1.
With casting liner plate technology of the present invention: as shown in Figure 3, moulding, the melting of selecting materials, cast, post-solidification open type, sand removal, cut rising head, repeat no more with embodiment 1.
Experimental results show that: the product of producing with the present invention as: get rid of hammer, Hubei Province plate, liner plate etc., its technology is simple, with short production cycle, cost has reduced 40-50%, production efficiency improves more than 2 times, the bound fraction of two kinds of materials of producing is austenite+cementite, it is the natural transition of two kinds of materials, it is in conjunction with firm, make the workpiece working position adopt the rich chromium cast iron material, reach hardness high abrasion damage and have intensity and toughness, but not the working position adopts the medium carbon steel material that required intensity and toughness are arranged again, both saved the precious metal material, improved more than 2 times service life and improve.
Claims (9)
1, a kind of continuous double-metal cast forming method comprises: hard metal mark material and common metal material, and it is characterized in that: (one) moulding: nowel is a metal mold, top box is a sand mold;
(2) melting: above-mentioned two kinds of metal materials are distinguished melting to tapping temperature by two stoves simultaneously; (3) cast: cast hard metal material is to flask joint earlier, and then, cast common metal material is to the rising head top; (4) post-solidification open type, room temperature ageing is handled; (5) rising head is cut in sand removal.
2, the method for claim 1, it is characterized in that: described hard metal material is the rich chromium cast iron material, it is matrix with Fe, wherein contains C:2.4-2.6%, Si:0.6-0.8%, Mn:0..6-0.8%, Cr:12%, Mo:0.6-1%, Cu:0.5%, S＜0.1%, P＜01%; Described common metal material is the medium carbon steel material, and it is matrix with Fe, wherein contains C:0.3-0.5%, Si:0.3-0.5%, Mn:0.7-0.9%, Cr:0.4-0.5%, S＜0.05%, P＜0.02%.
3, as claim 1,2 described methods, it is characterized in that: described hard metal mark material and common metal material are carried out stokehold chemical examination program before coming out of the stove, modified in stove, come out of the stove when composition reaches mentioned component and tapping temperature.
4, as claim 1,2 described methods, it is characterized in that: described rich chromium cast iron material molten iron tapping temperature is 1400-1450 ℃, and pouring temperature is 1350-1420 ℃.
5, as claim 1,2 described methods, it is characterized in that: the tapping temperature of described medium carbon steel material molten steel is 1550-1600 ℃, and pouring temperature is 1450-1520 ℃.
6, as claim 1,2 described methods, it is characterized in that: the poring rate of described rich chromium cast iron material molten iron is faster than the poring rate of medium carbon steel material.
7, as claim 1,2 described methods, it is characterized in that: described open form temperature is 800-900 ℃.
8, the method for claim 1 is characterized in that: described metal mold is a mould heat resisting steel, and described sand mold is a greensand mold.
9, the method for claim 1 is characterized in that: be coated with the interfacial separation agent of refractory material in upper and lower type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100048904A CN1311938C (en) | 2005-02-03 | 2005-02-03 | Continuous double-metal cast forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100048904A CN1311938C (en) | 2005-02-03 | 2005-02-03 | Continuous double-metal cast forming method |
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| CN1644274A true CN1644274A (en) | 2005-07-27 |
| CN1311938C CN1311938C (en) | 2007-04-25 |
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| CNB2005100048904A Expired - Fee Related CN1311938C (en) | 2005-02-03 | 2005-02-03 | Continuous double-metal cast forming method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773464A (en) * | 2012-08-06 | 2012-11-14 | 铜陵红星铜艺有限公司 | Method for simultaneously casting copper artware by different copper alloy solutions |
| CN104162647A (en) * | 2013-05-15 | 2014-11-26 | 通用电气公司 | Casting method, cast article and casting system |
| CN114147181A (en) * | 2021-10-21 | 2022-03-08 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1016235B (en) * | 1986-10-11 | 1992-04-15 | 机械工业部沈阳铸造研究所 | White cast-iron and cast steel bimetal composite casting |
| CN1012670B (en) * | 1988-07-31 | 1991-05-29 | 华北电力学院 | Process for casting double metals compound ball mill lining palte |
| CN1022674C (en) * | 1991-03-07 | 1993-11-10 | 余杭县南山不锈钢铸造厂 | Method for double liquid double metal compound casting of jaw plates |
-
2005
- 2005-02-03 CN CNB2005100048904A patent/CN1311938C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773464A (en) * | 2012-08-06 | 2012-11-14 | 铜陵红星铜艺有限公司 | Method for simultaneously casting copper artware by different copper alloy solutions |
| CN102773464B (en) * | 2012-08-06 | 2015-10-14 | 铜陵铜官府文化创意股份公司 | A kind of different Cu alloy solution is cast simultaneously and is made the method for copper artware |
| CN104162647A (en) * | 2013-05-15 | 2014-11-26 | 通用电气公司 | Casting method, cast article and casting system |
| GB2515889A (en) * | 2013-05-15 | 2015-01-07 | Gen Electric | Casting method, cast article, and casting system |
| GB2515889B (en) * | 2013-05-15 | 2016-05-25 | Gen Electric | Casting method |
| US9656321B2 (en) | 2013-05-15 | 2017-05-23 | General Electric Company | Casting method, cast article and casting system |
| CN104162647B (en) * | 2013-05-15 | 2019-05-17 | 通用电气公司 | Casting method, cast article and casting system |
| CN114147181A (en) * | 2021-10-21 | 2022-03-08 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
| CN114147181B (en) * | 2021-10-21 | 2023-12-29 | 浙江林家昌隆阀门铸造有限公司 | Double-furnace casting method |
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| CN1311938C (en) | 2007-04-25 |
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