CN1322148C - Quenching for material rack by high pressure gas - Google Patents
Quenching for material rack by high pressure gas Download PDFInfo
- Publication number
- CN1322148C CN1322148C CNB2004100930755A CN200410093075A CN1322148C CN 1322148 C CN1322148 C CN 1322148C CN B2004100930755 A CNB2004100930755 A CN B2004100930755A CN 200410093075 A CN200410093075 A CN 200410093075A CN 1322148 C CN1322148 C CN 1322148C
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- high pressure
- pressure gas
- supporting
- shelf
- quenching
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- 238000010791 quenching Methods 0.000 title claims abstract description 32
- 230000000171 quenching effect Effects 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 15
- 230000008093 supporting effect Effects 0.000 claims description 45
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention relates to a high pressure gas quenching material frame which belongs to the technical field of heat treatment. The high pressure gas quenching material frame comprises a support plate, a support rod, support thimbles and a shelf, wherein the shelf, the support plate and the support rod are screwed by threads, and a framework of the material frame is formed. When the high pressure gas quenching material frame is used for shaft kind component parts, the support thimbles are directly cast on the support plate; holes for placing the shaft kind parts are arranged on the shelf; and the holes and the support thimbles are correspondingly distributed. When the high pressure gas quenching material frame is used for tray kind parts, movable sleeves and fixed pins are added; the fixed pins are directly cast on the support plate; the movable sleeves are directly sheathed on the fixed pins for fixing the tray kind parts of which the inner diameter is larger than that of the fixed pins; the staggered distance between the support thimbles or the fixed pins between different layers is 30 to 40 mm. The high pressure gas quenching material frame improves the flow uniformity of gases in the quenching process of high pressure gases, the purpose of quenching is achieved, and the temperature difference of the parts in different positions in the gas quenching process is reduced; on the other hand, the efficiency of a heat treatment furnace is fully exerted, and the cost requirements are satisfied.
Description
Technical field
The present invention relates to the heat treated bin of a kind of part, specifically is a kind of quenching for material rack by high pressure gas.Belong to the heat treatment technics field.
Background technology
At present, along with the heat treatment deformation control of part and the progressively raising of uniform quenching requirement, and the popularization of vacuum heat treatment technology, adopt the high pressure gas quenching technology to begin gradually to popularize.High pressure gas quenching mainly is that the cooling power by gas with various, the change of quenching pressure realize the change of through hardening ability; Stir and only can improve gaseous exchange intensity, can not change the through hardening ability of gas.Therefore the homogeneity that how to realize gas stirring is most important for the uniform quenching that improves high pressure gas.
Through the literature search of prior art is found, Chinese patent application number: 02216494.4, name is called: a kind of bin that is used for reduction furnace.This patent readme is: increased the pre-coated layer number of plies of the interior truck of stove along short transverse, and then in stove under the constant substantially condition of temperature, can carry out two-layer simultaneously so that the multiwalled reduction, the productivity of the unit's of making reductive straight-bottom furnace area improves greatly, the productivity of the unit occupied area of stove increases greatly, has reduced production cost and facility investment; Simultaneously, also make the furnace charge on the unsettled flitch obtain rate of heating faster, the bed of material temperature difference up and down reduces, and the temperature distribution of furnace charge is more even, and therefore reduction rate, reduction degree of uniformity will improve.But this patent just improves homogeneity by changing heating-surface area, and the air flow line that the multilayer charging can cause is flowed to the change of turbulent flow by the river rising in Ningxia and flowing into central Shaanxi, even can hinder the mobile gas quenching effect that influences of quenching gas, the increase of surface-area simultaneously also can influence the cooling performance of part, so this patent can't apply to quench, and can only be used for heat-processed.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of quenching for material rack by high pressure gas is provided, the homogeneity of air-flow and the consistence of different parts in the quenching process temperature in the time of can increasing gas quenching make it can effectively control part heat treatment deformation and every performance index homogeneity.
The present invention is achieved by the following technical solutions, the present invention includes: supporting plate, supporting bar, supporting thimble, shelf.Its mode of connection is: shelf, supporting bar, supporting plate are twisted by screw thread and are connect, and constitute the framework of bin; When being used for axial workpiece, the supporting thimble is cast directly on the supporting plate, uniform distribution, and the spacing of adjacent supporting thimble is that the maximum outside diameter of part adds 30 ~ 40mm sum, and the supporting thimble is with the fixing axial workpiece of minimum area, not only can stabilizer elements but also can not influence hardened face and amass; The hole of placing axial workpiece is arranged, with the corresponding distribution of supporting thimble on the shelf; When being used for disk-like accessory, increase movable sleeve, tumbler pin, tumbler pin is cast directly on the supporting plate, and uniform distribution is used for from the fixing disk-like accessory of internal diameter, and the spacing of adjacent fixed pin is that the maximum outside diameter of part adds 30 ~ 40mm sum; Movable sleeve is used for being enclosed within on the tumbler pin, helps the disk-like accessory of fixed inner diameter greater than tumbler pin, so activity is with various size; The distance that staggers between supporting thimble between the different layers or the tumbler pin is 30 ~ 40mm, makes the levels part be interspersed, and helps the runoff of air-flow.
The present invention adjusts that the minimum spacing between the part is 30 ~ 40mm on the same layered material frame, and the distance that staggers of different layers part is 30 ~ 40mm, the feature that makes part be rendered as to be interspersed; For disk-like accessory owing to want the horizontal positioned part, the moving and versatility that increases bin of the string of part in the high pressure gas quenching process, thus on supporting plate additional design and manufacturing tumbler pin and movable sleeve.
The invention enables the enough spacings of maintenance between the part, improve gas flow homogeneity in the high pressure gas quenching process, make part in the high pressure gas quenching process, temperature is reduced as early as possible, reaches the purpose of quenching and reduces the temperature difference in the gas quenching process between the different sites part.On the other hand, the efficient of heat treatment furnace is not fully exerted, satisfies cost requirement.The invention has the beneficial effects as follows: can be by above-mentioned technology so that after the thermal treatment, same stove product, the uniformity of hardness of part is controlled at ± 1.0HRC well.
Description of drawings
Fig. 1 axial workpiece bin of the present invention structural representation
Fig. 2 disk-like accessory bin of the present invention structural representation
Embodiment
As shown in Figure 1 and Figure 2, the present invention includes: supporting plate 1, supporting bar 2, supporting thimble 3, shelf 4.Its mode of connection is: shelf 4, supporting plate 1, supporting bar 2 are twisted by screw thread and are connect, and constitute the framework of bin; When being used for axial workpiece, supporting thimble 3 is cast directly on the supporting plate 1, uniform distribution, and the spacing of adjacent supporting thimble 3 is that the maximum outside diameter of axial workpiece 8 adds 30 ~ 40mm sum, and supporting thimble 3 is with the fixing axial workpiece 8 of minimum area; The hole 7 of placing axial workpiece 8 is arranged, with the 3 corresponding distributions of supporting thimble on the shelf 4; When being used for disk-like accessory 9, increase movable sleeve 5, tumbler pin 6, tumbler pin 6 is cast directly on the supporting plate 1, uniform distribution, be used for from the fixing disk-like accessory 9 of internal diameter, the spacing of adjacent fixed pin 6 is that the maximum outside diameter of disk-like accessory 9 adds 30 ~ 40mm sum, and movable sleeve 5 directly is enclosed within on the tumbler pin 6, be used for fixing the disk-like accessory 9 of internal diameter, so movable sleeve 5 has various size greater than tumbler pin 6; The distance that staggers between supporting thimble 3 between the different layers or the tumbler pin 6 is 30 ~ 40mm, makes the levels part be interspersed.
When part carried out high pressure gas quenching, axial workpiece 8 was put in the hole 7 by shelf 4, and the bottom is fixed on supporting plate 1 by 3 supportings of supporting thimble; The internal diameter of disk-like accessory 9 is fixed on supporting plate 1 by tumbler pin 6, if part 9 internal diameters greater than tumbler pin 6, just increase movable sleeve 5 and are used for fixing, has avoided the string of part in the high pressure gas quenching process moving and increased the versatility of bin; Between the part, keep the spacing of 30 ~ 40mm up and down, be interspersed, when air-flow down flows the river rising in Ningxia and flowing into central Shaanxi from the top of bin, owing to kept appropriate spacing, can not influence gas flow, make air-flow be distributed to down the part of one deck equably, kept the consistence of part simultaneously, can effectively control part thermal treatment homogeneity in the quenching process temperature.
Claims (3)
1, a kind of quenching for material rack by high pressure gas, comprise: supporting plate (1), supporting bar (2), shelf (4), it is characterized in that, also comprise: supporting thimble (3), its mode of connection is: shelf (4), supporting plate (1), supporting bar (2) are twisted by screw thread and are connect, and constitute the framework of bin, when being used for axial workpiece (8), supporting thimble (3) is cast directly on the supporting plate (1), and the hole (7) of placement axial workpiece (8) is arranged on the shelf (4), hole (7) and the corresponding distribution of supporting thimble (3);
When being used for disk-like accessory (9), also comprise: movable sleeve (5), tumbler pin (6), shelf (4), supporting plate (1), supporting bar (2) are twisted by screw thread and are connect, constitute the framework of bin, tumbler pin (6) is cast directly on the supporting plate (1), movable sleeve (5) directly is enclosed within on the tumbler pin (6), is used for fixing the disk-like accessory (9) of internal diameter greater than tumbler pin (6);
The distance that staggers between supporting thimble (3) between the different layers or the tumbler pin (6) is 30～40mm.
2, quenching for material rack by high pressure gas according to claim 1, it is characterized in that, when being used for axial workpiece (8), supporting thimble (3) uniform distribution, the spacing of adjacent supporting thimble (3) is that the maximum outside diameter of axial workpiece (8) adds 30～40mm sum, and supporting thimble (3) is with the fixing axial workpiece (8) of minimum area.
3, quenching for material rack by high pressure gas according to claim 1, it is characterized in that, when being used for disk-like accessory (9), tumbler pin (6) is cast directly on the supporting plate (1), uniform distribution, be used for from the fixing disk-like accessory (9) of internal diameter, the spacing of adjacent fixed pin (6) is that the maximum outside diameter of disk-like accessory (9) adds 30～40mm sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100930755A CN1322148C (en) | 2004-12-16 | 2004-12-16 | Quenching for material rack by high pressure gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100930755A CN1322148C (en) | 2004-12-16 | 2004-12-16 | Quenching for material rack by high pressure gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624173A CN1624173A (en) | 2005-06-08 |
| CN1322148C true CN1322148C (en) | 2007-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100930755A Expired - Fee Related CN1322148C (en) | 2004-12-16 | 2004-12-16 | Quenching for material rack by high pressure gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1322148C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739791B (en) * | 2017-11-02 | 2019-02-01 | 山东上汽汽车变速器有限公司 | A kind of flitch, material frame and workpiece arrangement method for heat treatment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1550344A (en) * | 1975-07-30 | 1979-08-15 | Deere & Co | Method of carburizing an article on a support |
| US4978109A (en) * | 1988-01-15 | 1990-12-18 | Societe Mancelle De Fonderie | Unitary construction multideck tray device for heat treatment of shafts or like members |
| EP0491451A1 (en) * | 1990-12-17 | 1992-06-24 | FIRMA FRIEDR. LOHMANN GmbH WERK FÜR SPEZIAL- UND EDELSTÄHLE | Magazine-like stackable support grid for the positioning of axles |
| US5417567A (en) * | 1993-01-30 | 1995-05-23 | Ipsen Industries International Gesellschaft Mit Beschrankter Haftung | Holder means for the partial thermal treatment of workpieces |
| CN2387491Y (en) * | 1999-09-30 | 2000-07-12 | 程春根 | Bracket for heat treatment furnace |
| US6401941B1 (en) * | 1999-05-05 | 2002-06-11 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation S.N.E.C.M.A. | Rack for loading parts for heat treatment |
| CN2532082Y (en) * | 2002-03-29 | 2003-01-22 | 宝山钢铁股份有限公司 | Material shelf for reduction furnace |
| CN2569077Y (en) * | 2002-09-29 | 2003-08-27 | 赵保恒 | Zigzag tile bracket |
| CN2758272Y (en) * | 2004-12-16 | 2006-02-15 | 上海汽车股份有限公司 | High pressure gas quenching material shelf |
-
2004
- 2004-12-16 CN CNB2004100930755A patent/CN1322148C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1550344A (en) * | 1975-07-30 | 1979-08-15 | Deere & Co | Method of carburizing an article on a support |
| US4978109A (en) * | 1988-01-15 | 1990-12-18 | Societe Mancelle De Fonderie | Unitary construction multideck tray device for heat treatment of shafts or like members |
| EP0491451A1 (en) * | 1990-12-17 | 1992-06-24 | FIRMA FRIEDR. LOHMANN GmbH WERK FÜR SPEZIAL- UND EDELSTÄHLE | Magazine-like stackable support grid for the positioning of axles |
| US5417567A (en) * | 1993-01-30 | 1995-05-23 | Ipsen Industries International Gesellschaft Mit Beschrankter Haftung | Holder means for the partial thermal treatment of workpieces |
| US6401941B1 (en) * | 1999-05-05 | 2002-06-11 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation S.N.E.C.M.A. | Rack for loading parts for heat treatment |
| CN2387491Y (en) * | 1999-09-30 | 2000-07-12 | 程春根 | Bracket for heat treatment furnace |
| CN2532082Y (en) * | 2002-03-29 | 2003-01-22 | 宝山钢铁股份有限公司 | Material shelf for reduction furnace |
| CN2569077Y (en) * | 2002-09-29 | 2003-08-27 | 赵保恒 | Zigzag tile bracket |
| CN2758272Y (en) * | 2004-12-16 | 2006-02-15 | 上海汽车股份有限公司 | High pressure gas quenching material shelf |
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| Publication number | Publication date |
|---|---|
| CN1624173A (en) | 2005-06-08 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: SHANGHAI AUTOMOTIVE TRANSMISSION CO.; SHANGHAI QI Free format text: FORMER OWNER: SHANGHAI AUTOMOBILE CO. LTD. Effective date: 20080711 |
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Effective date of registration: 20080711 Address after: Shanghai city Jiading District Road No. 189 Patentee after: Shanghai Automotive Transmission Co., Ltd. Patentee after: Shanghai Qichun Thermal Treatment Co., Ltd. Address before: Shanghai City Songtao road in Zhangjiang High Tech Park of Pudong No. 563 A block 5 layer Patentee before: Shanghai Automobile Co., Ltd. |
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Free format text: FORMER OWNER: SHANGHAI QICHUN THERMAL TREATMENT CO., LTD. |
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Free format text: CORRECT: ADDRESS; FROM: 201822 NO.189, JIALUO HIGHWAY, JIADING DISTRICT, SHANGHAI TO: 201821 NO.506, YECHENG ROAD, JIADING DISTRICT, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110228 Address after: 201821 No. 506, Yecheng Road, Shanghai, Jiading District Patentee after: Shanghai Automotive Transmission Co., Ltd. Address before: 201822 Shanghai city Jiading District Road No. 189 Co-patentee before: Shanghai Qichun Thermal Treatment Co., Ltd. Patentee before: Shanghai Automotive Transmission Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20181216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |