CN203741371U - Forged piece isothermal normalizing device - Google Patents
Forged piece isothermal normalizing device Download PDFInfo
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- CN203741371U CN203741371U CN201320631722.8U CN201320631722U CN203741371U CN 203741371 U CN203741371 U CN 203741371U CN 201320631722 U CN201320631722 U CN 201320631722U CN 203741371 U CN203741371 U CN 203741371U
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- cooling chamber
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Abstract
The utility model relates to a forged piece isothermal normalizing device. The forged piece isothermal normalizing device comprises a conveying mechanism, a slow cooling chamber, a quick-cooling chamber and an isothermal furnace, wherein the conveying mechanism is connected to the input end of the slow cooling chamber, the output end of the slow cooling chamber is connected to the output end of the quick-cooling chamber, the output end of the quick-cooling chamber is connected to the input end of the isothermal furnace, the quick-cooling chamber comprises a tank and an air blowing and discharging mechanism arranged on the top of the tank, two side support bodies on the top of a support of the tank are provided with hollow interlayers, the hollow interlayers are internally provided with cooling liquid, and a liquid storage tank is arranged below the tank and is communicated with the hollow interlayers on the tank through a circulating pump. The forged piece isothermal normalizing device has the advantages that the quick-cooling chamber can be used for improving the cooling efficiency of forged pieces, so that the forged pieces have appropriate treatment temperature before entering the isothermal furnace.
Description
Technical field
The utility model relates to a kind of isothermal normalizing device of forging.
Background technology
Normalizing is a kind of heat treatment step, be mainly used to improve the problem of converted steel product blank (hereinafter referred to as forging stock) coarse grains, inequality after high temperature forging, and eliminate the α-Widmannstatten structure and the astable tissue (as martensite, bainite) that occur, and for providing, later stage machining is applicable to hardness and desirable tissue (waiting axle proeutectoid ferrite+pearlitic structure).But traditional normalizing still usually occurs astable microstructure to processing automotive part forging stock, hardness scattered error is large, and forging a knife appears in machining, sticky cutter phenomenon, exists product working accuracy to improve difficulty, the overproof problem such as larger of product distortion after carburizing and quenching.For solving above-mentioned process quality issue, now generally adopt isothermal normalizing technique, automobile forging stock processing quality is significantly improved.
Because normalizing operation is carried out after forging process, and after forging finish-forging forging stock still in high temperature austenite state, while having possessed normalizing heating, need the condition of austenitizing, people can expect utilizing the high-temperature residual heat that forges rear forging stock directly to carry out normalizing naturally, thereby save the energy consumption of normalizing.But through the discovery that studies for a long period of time, because Forge Heating temperature is very high, final forging temperature is very high and temperature height inequality also, makes its austenite crystal thicker and inhomogeneous.And, in the time of air cooling subsequently, easily form α-Widmannstatten structure and astable tissue, the machinability of forging stock is reduced, and the final use properties of this converted steel product is obviously reduced.Therefore it is second-rate and unstable and be not employed so far that, the waste heat of forging stock utilization after forging directly carries out the positive cause of fire.
Chinese utility model patent CN202246747U discloses a kind of excess heat isothermal normalizing furnace, comprise transporting mechanism, slow cooling chamber, snap-chill cabinet, constant-temperature oven, Controlling System and transmission system, wherein, the two ends of transporting mechanism are connected with the front end of the gentle cold house of forging hammer station respectively, the rear end of slow cooling chamber is connected with snap-chill cabinet front end, the rear end of snap-chill cabinet is connected with the front end of constant-temperature oven, the operation of the whole device of Controlling System control, and the precooling temperature T1 to forging stock at least, strong cold temperature T 2, these four processing parameters of isothermal temperature Tiso and isothermal time tiso are controlled.It utilizes the processing waste heat alloy converted steel products such as forging to carry out the heat treatment process of isothermal normalizing, makes the thermal treatment quality of steelwork be better than or at least equal by prior heat treatment such as normalizing and isothermal normalizings simultaneously.But, the snap-chill cabinet of this excess heat isothermal normalizing furnace is to carry out cooling by air-cooled mode to workpiece, because the slow cooling chamber of forging is above also air cooling way, therefore, enter into snap-chill cabinet by slow cooling chamber not remarkable by air-cooled mode cooling performance again, thereby cause, to enter into the temperature of workpiece of constant-temperature oven by snap-chill cabinet higher, and the quality of forging is failed to obtain significantly and promoted.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of isothermal normalizing device of forging, and snap-chill cabinet of the present utility model can improve the cooling efficiency to forging, and forging himself is had by suitable treatment temp entering into before constant-temperature oven.
The technical scheme solving the problems of the technologies described above is as follows:
The isothermal normalizing device of forging, comprise transporting mechanism, slow cooling chamber, snap-chill cabinet, constant-temperature oven, transporting mechanism is connected with the input terminus of slow cooling chamber, the output terminal of slow cooling chamber is connected with snap-chill cabinet output terminal, the output terminal of snap-chill cabinet is connected with the input terminus of constant-temperature oven, what snap-chill cabinet comprised casing and was arranged on casing top blows air draft mechanism, two side supporters of the support, top of described casing are provided with hollow sandwich, in this hollow sandwich, be provided with cooling fluid, a liquid-storing box is set below casing, liquid-storing box is communicated with the hollow sandwich on casing by recycle pump.
Adopted such scheme, two side supporters of the support, top of described casing are provided with hollow sandwich, in this hollow sandwich, are provided with cooling fluid, and a liquid-storing box is set below casing, and liquid-storing box is communicated with the hollow sandwich on casing by recycle pump.Like this, to the cooling body that passes into circulation in the hollow sandwich of casing, forging when by casing, the effect of logical heat transfer, cooling fluid can absorb the temperature in casing rapidly, temperature in casing is obtained and reduce.The mode of air draft mechanism and logical heat transfer is blown in the utility model utilization, make the temperature of the forging by casing can obtain rapidly reduction, not only improve the cooling efficiency to forging, and forging himself is had by suitable treatment temp entering into before constant-temperature oven.
Further, in described liquid-storing box, be provided with heat exchanger, this heat exchanger comprises water inlet pipe, water pump, heat exchange box, heat exchanger fin and rising pipe, one end of water inlet pipe is connected with heat exchange box, the outside that the other end of water inlet pipe passes liquid-storing box is connected with water pump, one end of rising pipe is connected with heat exchange box, and the other end of rising pipe passes the outside of liquid-storing box, and described heat exchanger fin is arranged in the outside wall surface of heat exchange box.Due to cooling fluid in the hollow sandwich of casing by heat exchange after, the temperature of cooling fluid can improve a lot, cooling fluid proceeds to after liquid-storing box, if do not reduce its temperature, then enter into hollow sandwich can impact and the heat exchanger effectiveness of casing.Therefore, by the heat exchanger arranging in liquid-storing box, can make cooling fluid and heat exchanger carry out heat exchange, to reduce the temperature of cooling fluid.
Further, be also provided with control device on described liquid-storing box, this control device comprises temperature sensor, micro-chip, frequency transformer, temperature sensor is arranged in liquid-storing box, the output terminal of temperature sensor is connected with micro-chip, and the output terminal of micro-chip is connected with frequency transformer, and frequency transformer connects water pump.Detect the temperature of cooling fluid by temperature sensor, compared by micro-chip, if the temperature of cooling fluid is greater than the threshold value of setting in micro-chip, micro-chip output control signal, control frequency transformer and make water pump accelerate to flow through heat exchanger, to reduce as early as possible the temperature of cooling fluid in liquid-storing box.
Brief description of the drawings
Fig. 1 is the schematic diagram of the isothermal normalizing device of forging of the present utility model;
Fig. 2 is the cross-sectional view of the snap-chill cabinet in the utility model;
1 is transporting mechanism, and 2 is slow cooling chamber, and 3 is snap-chill cabinet, and 4 is constant-temperature oven;
31 is casing, and 32 is air draft mechanism, and 33 is hollow sandwich, and 34 is cooling fluid, and 35 is liquid-storing box, and 36 is recycle pump, and 37 is water inlet pipe, and 38 is water pump, and 39 is heat exchange box, and 40 is heat exchanger fin, and 41 is rising pipe, and 42 is temperature sensor, and 43 is micro-chip, and 44 is frequency transformer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, the isothermal normalizing device of forging of the present utility model, comprises transporting mechanism 1, slow cooling chamber 2, snap-chill cabinet 3, constant-temperature oven 4.Transporting mechanism 1 is connected with the input terminus of slow cooling chamber 2, and the output terminal of slow cooling chamber 2 is connected with snap-chill cabinet 3 output terminals, and the output terminal of snap-chill cabinet 3 is connected with the input terminus of constant-temperature oven 4.What snap-chill cabinet comprised casing 31 and was arranged on casing top blows air draft mechanism 32, two side supporters of the support, top of described casing are provided with hollow sandwich 33, in this hollow sandwich 33, be provided with cooling fluid 34, a liquid-storing box 35 is set below casing, and liquid-storing box is communicated with the hollow sandwich 33 on casing by recycle pump 36.In described liquid-storing box 35, be provided with heat exchanger, this heat exchanger comprises water inlet pipe 37, water pump 38, heat exchange box 39, heat exchanger fin 40 and rising pipe 41, one end of water inlet pipe 37 is connected with heat exchange box 29, the outside that the other end of water inlet pipe 37 passes liquid-storing box 35 is connected with water pump 38, one end of rising pipe 41 is connected with heat exchange box 39, the other end of rising pipe 41 passes the outside of liquid-storing box 35, and described heat exchanger fin 40 is arranged in the outside wall surface of heat exchange box 29.On described liquid-storing box, be also provided with control device, this control device comprises temperature sensor 42, micro-chip 43, frequency transformer 44, temperature sensor 42 is arranged in liquid-storing box 35, the output terminal of temperature sensor 42 is connected with micro-chip 43, the output terminal of micro-chip 43 is connected with frequency transformer 44, and frequency transformer 44 connects water pump 38.
Claims (2)
1. the isothermal normalizing device of forging, comprise transporting mechanism, slow cooling chamber, snap-chill cabinet, constant-temperature oven, transporting mechanism is connected with the input terminus of slow cooling chamber, the output terminal of slow cooling chamber is connected with snap-chill cabinet output terminal, the output terminal of snap-chill cabinet is connected with the input terminus of constant-temperature oven, what snap-chill cabinet comprised casing and was arranged on casing top blows air draft mechanism, it is characterized in that: two side supporters of the support, top of described casing are provided with hollow sandwich, in this hollow sandwich, be provided with cooling fluid, a liquid-storing box is set below casing, liquid-storing box is communicated with the hollow sandwich on casing by recycle pump, in described liquid-storing box, be provided with heat exchanger, this heat exchanger comprises water inlet pipe, water pump, heat exchange box, heat exchanger fin and rising pipe, one end of water inlet pipe is connected with heat exchange box, the outside that the other end of water inlet pipe passes liquid-storing box is connected with water pump, one end of rising pipe is connected with heat exchange box, the other end of rising pipe passes the outside of liquid-storing box, described heat exchanger fin is arranged in the outside wall surface of heat exchange box.
2. the isothermal normalizing device of forging according to claim 1, it is characterized in that: on described liquid-storing box, be also provided with control device, this control device comprises temperature sensor, micro-chip, frequency transformer, temperature sensor is arranged in liquid-storing box, the output terminal of temperature sensor is connected with micro-chip, the output terminal of micro-chip is connected with frequency transformer, and frequency transformer connects water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631722.8U CN203741371U (en) | 2013-10-12 | 2013-10-12 | Forged piece isothermal normalizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631722.8U CN203741371U (en) | 2013-10-12 | 2013-10-12 | Forged piece isothermal normalizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203741371U true CN203741371U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320631722.8U Expired - Fee Related CN203741371U (en) | 2013-10-12 | 2013-10-12 | Forged piece isothermal normalizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203741371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881321A (en) * | 2017-11-21 | 2018-04-06 | 无锡市洗选设备厂 | A kind of metallurgical blank cooling device |
| CN108660296A (en) * | 2018-08-03 | 2018-10-16 | 天津鼎元热工工程有限公司 | Dual chamber isothermal normalizing air cooling system |
-
2013
- 2013-10-12 CN CN201320631722.8U patent/CN203741371U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881321A (en) * | 2017-11-21 | 2018-04-06 | 无锡市洗选设备厂 | A kind of metallurgical blank cooling device |
| CN108660296A (en) * | 2018-08-03 | 2018-10-16 | 天津鼎元热工工程有限公司 | Dual chamber isothermal normalizing air cooling system |
| CN108660296B (en) * | 2018-08-03 | 2019-07-30 | 天津鼎元热工工程有限公司 | Dual chamber isothermal normalizing air cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20171012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |