CN104894350A - Waste heat water toughening method and device for multi-mold assemblage casted high manganese steel casting - Google Patents
Waste heat water toughening method and device for multi-mold assemblage casted high manganese steel casting Download PDFInfo
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- CN104894350A CN104894350A CN201510291186.5A CN201510291186A CN104894350A CN 104894350 A CN104894350 A CN 104894350A CN 201510291186 A CN201510291186 A CN 201510291186A CN 104894350 A CN104894350 A CN 104894350A
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Abstract
The invention discloses a waste heat water toughening method and device for a multi-mold assemblage casted high manganese steel casting, and belongs to the technical field of metal casting and heat treatment. The method has the beneficial effects that step connection of the water toughing method is in order, and it is ensured that after waste heat water toughening is carried out on the multi-mold assemblage casted high manganese steel casting, a single-austenite structure is obtained, so that the use performance requirement of the high manganese steel casting is met; in the waste heat water toughening process, the casting is not cracked; and compared with a conventional waste heat water toughening method, the technology complexity is reduced, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The invention belongs to metal casting, technical field of heat treatment, particularly relate to a kind of heat treating method of High Manganese Steel Casting, also relate to a kind for the treatment of unit of the method.
Background technology
High Manganese Steel Casting is after waste heat water-tenacity treatment, and wear resisting property can strengthen, but the tough Disposal quality of remaining hot water will directly affect the work-ing life of High Manganese Steel Casting.Because single-piece High Manganese Steel Casting waste heat water-tenacity treatment needs the operations such as heating and thermal insulation, thus the production cycle is long, production cost is high, therefore High Manganese Steel Casting adopts more than one piece series pouring waste heat water-tenacity treatment at present, foundry goods is heated to 1000 DEG C ~ 1100 DEG C, water-cooled after insulation, makes to be dissolved in carbides in austenite and have little time to separate out, obtain single austenite structure, the wear resisting property of foundry goods is strengthened greatly.Problems existing is because during waste heat water-tenacity treatment, the series connection of more than one piece High Manganese Steel Casting abuts against together, especially wall thickness reaches the High Manganese Steel Casting of 100mm, radiating condition is poor and heat radiation is very uneven, when waste heat water-tenacity treatment, High Manganese Steel Casting easily cracks defect, casting wasted product rate is high, inefficiency, increases production cost; Cannot obtain single austenite structure, High Manganese Steel Casting cannot meet use properties requirement, and the work-ing life of High Manganese Steel Casting has a greatly reduced quality simultaneously.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide the tough treatment process of a kind of series pouring High Manganese Steel Casting remaining hot water, High Manganese Steel Casting obtains single austenite structure, reduces crack defect, reduces production cost, enhances productivity.
The tough treatment process of a kind of series pouring High Manganese Steel Casting remaining hot water, specifically carry out according to the following steps:
During step S101 molten steel, carbon content control between 0.9% ~ 1.0%, thus reduces the precipitation of carbide in process of setting;
After the tapping of step S102 molten steel, in ladle, add the titanium alloy of a certain amount of granularity at about 8 ~ 20mm, increase crystallization nucleus, with refined cast structure's crystal grain;
Water is piled in waste heat water-tenacity treatment pond by step S103, and keeps circulation water inlet, and water temperature is not more than 30 DEG C before foundry goods enters water, and after foundry goods enters water, temperature is not more than 60 DEG C, to ensure to obtain single austenite structure;
Step S104 teeming temperature is 1420 DEG C ~ 1450 DEG C, insulation 2.0 ~ 3.0h after cast, and driving a vehicle slings the High Manganese Steel Casting of series connection together with core immerses in waste heat water-tenacity treatment pond, makes water not have core upper surface;
Step S105 lifting rig moves back and forth High Manganese Steel Casting and stirs pond, translational speed is about 0.4m/s ~ 0.6m/s, keep even water temperature in pond, thus foundry goods each position speed of cooling is also more even, High Manganese Steel Casting cools 0.5h ~ 1h in pond, hung out pond, completed waste heat water-tenacity treatment.
Further, in described step S102, the add-on of titanium alloy is 0.05% ~ 0.15%.
Further, in described step S105, lifting rig is driving, cantilever crane or travelling car.
The present invention also provides a kind of device being suitable for the tough treatment process of above-mentioned series pouring High Manganese Steel Casting remaining hot water, comprise waste heat water-tenacity treatment pond, temperature sensor, electric control gear and water circulating pump, at the bottom of the pool wall surrounding and pond in described pond, all establish temperature sensor, temperature sensor and electric control gear are electrically connected; Prosopyle is offered on the side of temperature sensor, connection prosopyle, water inlet pipe one end, the other end connects water circulating pump, and water circulating pump and electric control gear are electrically connected, treated clear water passes through the control of temperature sensor and electric control gear, realizes the accurate evenly temper to water temperature in pond.
Further, described prosopyle is established drainage cap, it is the jet hole of 45 ° that the water collection cap pressed on ring at the bottom of pond is established with bottom surface, pond, and clear water is spouting obliquely by bottom, the water fully at the bottom of disturbance pond; The water collection cap of pool wall centrally axis offers horn-like jet hole, laterally accelerates the heat exchange of cast(ing) surface, ensures that the cooling of foundry goods various piece reaches unanimity.
Compared with prior art, advantage is that the step of this water-tenacity treatment method is connected in order, ensure that series pouring High Manganese Steel Casting obtains single austenite structure after waste heat water-tenacity treatment, meet the use properties requirement of High Manganese Steel Casting, and do not ftracture at the tough treating processes medium casting of remaining hot water, and compare the tough treatment process of conventional remaining hot water, reduce process complexity, improve production efficiency, reduce production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of the present invention's ten pieces of series pouring high manganese steel lining plate afterheat of casting water-tenacity treatment devices.
In figure: 1-pond, 2-water collection cap, 3-temperature sensor, 4-foundry goods.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
The present embodiment, in order to the tough treatment process of remaining hot water of the present invention is described, elaborates the practical application of the inventive method for the high manganese steel lining plate foundry goods of the thick series pouring of 100mm.Ten pieces of high manganese steel lining plate foundry goods series pouring process programs as shown in Figure 1.
The design parameter of this high manganese steel lining plate foundry goods is as follows:
Castings material: ZGMn13-4
The maximum physical dimension of foundry goods: 915mm × 800mm
Casting section thickness: 100mm
Spray weight: 570kg
The concrete implementation step of the technical scheme of the High Manganese Steel Casting waste heat waste heat water-tenacity treatment of this series pouring is as follows:
During step S101 molten steel, carbon content control between 0.9% ~ 1.0%, thus reduces the precipitation of carbide in process of setting;
After the tapping of step S102 molten steel, in ladle, add the titanium alloy of a certain amount of granularity at about 15mm, the add-on of titanium alloy is 0.10%.Increase crystallization nucleus, with refined cast structure's crystal grain;
Water is piled in waste heat water-tenacity treatment pond by step S103, and keeps circulation water inlet, and water temperature is not more than 30 DEG C before foundry goods enters water, and after foundry goods enters water, temperature is not more than 60 DEG C, to ensure to obtain single austenite structure;
Step S104 teeming temperature is 1420 DEG C ~ 1450 DEG C, is incubated 2.5h after cast, and driving a vehicle slings the High Manganese Steel Casting of series connection together with core immerses in waste heat water-tenacity treatment pond, makes water not have core upper surface;
Step S105 selects driving, cantilever crane or travelling car as lifting rig, lifting rig moves back and forth High Manganese Steel Casting and stirs pond, translational speed is greatly about about 0.5m/s, keep even water temperature in pond, thus foundry goods each position speed of cooling is also more even, High Manganese Steel Casting cools 0.5h ~ 1h in pond, is hung out pond, completes waste heat water-tenacity treatment.
The present invention also provides a kind of device being suitable for the tough treatment process of series pouring High Manganese Steel Casting remaining hot water, comprise waste heat water-tenacity treatment pond 1, temperature sensor 3, electric control gear (not marking in figure) and water circulating pump (not marking in figure), at the bottom of the pool wall surrounding and pond in described pond, all establish temperature sensor, temperature sensor and electric control gear are electrically connected; Prosopyle is offered on the side of temperature sensor, connection prosopyle, water inlet pipe one end, the other end connects water circulating pump, and water circulating pump and electric control gear are electrically connected, treated clear water passes through the control of temperature sensor and electric control gear, realizes the accurate evenly temper to water temperature in pond.
Described prosopyle is established drainage cap 2, and it is the jet hole of 45 ° that the water collection cap pressed on ring at the bottom of pond is established with bottom surface, pond, and clear water is spouting obliquely by bottom, the water fully at the bottom of disturbance pond; The water collection cap of pool wall centrally axis offers horn-like jet hole, laterally accelerates the heat exchange on foundry goods 4 surface, ensures that the cooling of foundry goods various piece reaches unanimity.
Claims (5)
1. the tough treatment process of series pouring High Manganese Steel Casting remaining hot water, is characterized in that specifically carrying out according to the following steps:
During step S101 molten steel, carbon content control between 0.9% ~ 1.0%, thus reduces the precipitation of carbide in process of setting;
After the tapping of step S102 molten steel, in ladle, add the titanium alloy of a certain amount of granularity at about 8 ~ 20mm, increase crystallization nucleus, with refined cast structure's crystal grain;
Water is piled in waste heat water-tenacity treatment pond by step S103, and keeps circulation water inlet, and water temperature is not more than 30 DEG C before foundry goods enters water, and after foundry goods enters water, temperature is not more than 60 DEG C, to ensure to obtain single austenite structure;
Step S104 teeming temperature is 1420 DEG C ~ 1450 DEG C, insulation 2.0 ~ 3.0h after cast, and driving a vehicle slings the High Manganese Steel Casting of series connection together with core immerses in waste heat water-tenacity treatment pond, makes water not have core upper surface;
Step S105 lifting rig moves back and forth High Manganese Steel Casting and stirs pond, translational speed is about 0.4m/s ~ 0.6m/s, keep even water temperature in pond, thus foundry goods each position speed of cooling is also more even, High Manganese Steel Casting cools 0.5h ~ 1h in pond, hung out pond, completed waste heat water-tenacity treatment.
2. the tough treatment process of series pouring High Manganese Steel Casting remaining hot water according to claim 1, is characterized in that the add-on of titanium alloy in described step S102 is 0.05% ~ 0.15%.
3. the tough treatment process of series pouring High Manganese Steel Casting remaining hot water according to claim 1, is characterized in that in described step S105, lifting rig is driving, cantilever crane or travelling car.
4. one kind is suitable for the device of method according to any one of claims 1 to 3, it is characterized in that comprising waste heat water-tenacity treatment pond (1), temperature sensor (3), electric control gear and water circulating pump, at the bottom of the pool wall surrounding and pond in described pond, all establish temperature sensor, temperature sensor and electric control gear are electrically connected; Offer prosopyle on the side of temperature sensor, connection prosopyle, water inlet pipe one end, the other end connects water circulating pump, and water circulating pump and electric control gear are electrically connected.
5. the tough treatment process of series pouring High Manganese Steel Casting remaining hot water according to claim 4, is characterized in that on described prosopyle, establish drainage cap (2), and it is the jet hole of 45 ° that the water collection cap pressed on ring at the bottom of pond is established with bottom surface, pond; The water collection cap of pool wall centrally axis offers horn-like jet hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291186.5A CN104894350A (en) | 2015-06-01 | 2015-06-01 | Waste heat water toughening method and device for multi-mold assemblage casted high manganese steel casting |
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| CN201510291186.5A CN104894350A (en) | 2015-06-01 | 2015-06-01 | Waste heat water toughening method and device for multi-mold assemblage casted high manganese steel casting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951555A (en) * | 2022-04-29 | 2022-08-30 | 哈尔滨玻璃钢研究院有限公司 | Serial water-soluble sand core mold and manufacturing method thereof |
| CN115839567A (en) * | 2023-01-09 | 2023-03-24 | 江苏福达新材料科技有限公司 | Energy-saving wear-resisting welt cooling arrangement |
-
2015
- 2015-06-01 CN CN201510291186.5A patent/CN104894350A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 丁建生等: "高锰钢耐磨铸件铸态余热水韧处理工艺研究", 《铸造技术》 * |
| 王仲珏等: "高锰钢水韧处理效果的控制", 《热处理》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951555A (en) * | 2022-04-29 | 2022-08-30 | 哈尔滨玻璃钢研究院有限公司 | Serial water-soluble sand core mold and manufacturing method thereof |
| CN115839567A (en) * | 2023-01-09 | 2023-03-24 | 江苏福达新材料科技有限公司 | Energy-saving wear-resisting welt cooling arrangement |
| CN115839567B (en) * | 2023-01-09 | 2023-10-24 | 山东齐帅耐磨设备有限公司 | Energy-saving wear-resistant lining board cooling equipment |
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Application publication date: 20150909 |