CN104294024B - Large thin-wall rotary type steel-casting heat treatment tooling and using method thereof - Google Patents
Large thin-wall rotary type steel-casting heat treatment tooling and using method thereof Download PDFInfo
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- CN104294024B CN104294024B CN201410533153.2A CN201410533153A CN104294024B CN 104294024 B CN104294024 B CN 104294024B CN 201410533153 A CN201410533153 A CN 201410533153A CN 104294024 B CN104294024 B CN 104294024B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000005304 joining Methods 0.000 claims abstract description 7
- 230000000875 corresponding Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000001590 oxidative Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 24
- 238000010276 construction Methods 0.000 description 3
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 210000000589 Cicatrix Anatomy 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
The present invention relates to steel-casting technical field of heat treatment, particularly to a kind of large thin-wall rotary type steel-casting heat treatment tooling and using method thereof, wherein large thin-wall rotary type steel-casting heat treatment tooling, including two-layer or two-layer arrangement above in revolving body for supporting some radial direction lacing wires of revolving body inwall, each radially lacing wire of every layer is intersected in the revolving body centre of gyration and fixes, it is provided with vertical support bar between the adjacent lacing wire joining of radial direction up and down and below the joining of orlop radially lacing wire, between described radial direction lacing wire and revolving body inwall, spot welding is fixed, described radial direction lacing wire is welded and fixed in intersection, revolving body center.The heat treatment tooling of the present invention and using method can reduce thin-section casting deflection in heat treatment, simplify the operation after heat treating castings, improve castings production efficiency, shorten the production cycle.
Description
Technical field
The present invention relates to steel-casting technical field of heat treatment, particularly to a kind of large thin-wall rotary type steel-casting heat treatment tooling and using method thereof.
Background technology
During large thin-wall rotary type steel-casting heat treatment, owing to there is the reasons such as heat treatment stress (thermal stress and structural stress), uneven microstructure, phase transformation, it is easily caused casting deformation.Additionally, the factors such as the deadweight supporting improper and foundry goods itself when foundry goods heats in heat-treatment furnace and cools down all can cause casting deformation.It is exposed that this type of deformation will result in casting portion position, and repair welding expends great amount of cost；The correction carried out for deformation is same by expending certain human and material resources, has a strong impact on the castings production cycle simultaneously.
Not enough for this, traditional prevention method is to increase foundry goods subsidy in modeling process.Use the method increasing subsidy to prevent casting deformation from being relatively effective, but add the consumption of molten steel, make cast shape size differ bigger with drawing requirement, foundry goods is subsidy to be removed after casting out, correspondingly increase the workload of casting cleaning, too increase machining amount, make casting cost improve.Meanwhile, subsidy position can produce a serious oxyacetylene metal-cutting cicatrix, has a strong impact on the presentation quality of foundry goods, and cutting part needs gouge, cause hardness to increase, affect machining property.
Summary of the invention
An object of the present invention is for the problems referred to above present in prior art medium-and-large-sized thin-walled revolution workpiece class steel-casting heat treatment, a kind of large thin-wall rotary type steel-casting heat treatment tooling is provided, to reduce thin-section casting deflection in heat treatment, simplify the operation after heat treating castings, improve castings production efficiency, shorten the production cycle.
The object of the present invention is achieved like this, a kind of large thin-wall rotary type steel-casting heat treatment tooling, including two-layer or two-layer arrangement above in revolving body for supporting some radial direction lacing wires of revolving body inwall, each radially lacing wire of every layer is intersected in the revolving body centre of gyration and fixes, it is provided with vertical support bar between the adjacent lacing wire joining of radial direction up and down and below the joining of orlop radially lacing wire, between described radial direction lacing wire and revolving body inwall, spot welding is fixed, and described radial direction lacing wire is welded and fixed in intersection, revolving body center.
The heat treatment tooling of the present invention, by radially arranging radially lacing wire supporting construction and, with support equilibrium during holding thin-walled revolution workpiece heat treatment, prevent heat treatment deformation with longitudinal equalization in revolving body；And several radial direction lacing wires of equalization setting realize multi-faceted support, the Area of bearing of single support member and revolution body wall can be reduced, reduce size and the weight of single support member, each radially lacing wire only need to be connected by spot welding between revolution body wall, so that the dismounting of radially lacing wire after heat treatment, reduce the cutting damage of foundry goods spot welding support zone, reduce postorder process work, improve castings production efficiency, shorten the production cycle.
For realizing and radially uniform support upper and lower to revolving body foundry goods further, the described radial direction lacing wire of neighbouring layer is crisscross arranged along the radial angle of revolving body.The radial direction lacing wire being crisscross arranged up and down, the support to revolving body more equalizes, and can reduce the heat treatment deformation of non-supported position revolving body further.
Support for adapting to differing heights size revolving body further, described in adjacent layer, the vertical interval of radially lacing wire is 0.3 0.5 meters, and described in the superiors, radially lacing wire is 0.25 0.35 away from the radial direction lacing wire vertical dimension away from revolving body lower port described in revolving body upper port and orlop.
For realizing uniform support further, the angle between every layer of described radial direction lacing wire is 45 °, 60 ° or 90 °.
For making the synchronization telescope deformation in heat treatment of support member and revolving body, described radial direction lacing wire is that congruent with foundry goods and that size is suitable foundry goods running channel is made.
For preventing heat treatment deformation further, the lower end peripheral of described revolving body is equidistantly provided with some monolayer parallels, and undermost support bar lower end is supported by double-deck parallels.
It is a further object to provide a kind of using method using above-mentioned large thin-wall rotary type steel-casting heat treatment tooling to prevent heat treating castings from deforming, comprise the steps:
(1) according to pending revolving body ratio of height to diameter, the most radially the lacing wire number of plies and the quantity of every layer of radial direction lacing wire are set, if the height of revolving body is 0.8 1.2 meters, then radially lacing wire arranges two-layer, vertical dimension between two-layer is 0.3 0.4 meters, the height of revolving body is more than 1.2 meters, and the vertical dimension of adjacent radial lacing wire is 0.4 0.5 meters；The angle of the diameter revolving body every layer less than 5 meters radially lacing wire is 90 °, and the angle of the revolving body every layer of a diameter of 5 10 meters radially lacing wire is 60 °, and the angle of the diameter revolving body every layer more than 10 meters radially lacing wire is 45 °；
(2) choose the running channel of the length respective numbers suitable with revolving body radial dimension or the support rod member of corresponding size as radial direction lacing wire, two ends weld before cutting or grinding process, to remove the impurity on radially surface, lacing wire welding position；
(3) angle between the radial direction lacing wire number of plies determined by step (1), each interlamellar spacing and every layer radially lacing wire, radial direction lacing wire is fixed with revolving body spot welding, each radially lacing wire is welded and fixed in intersection, revolving body center, is welded and fixed support bar in intersection, revolving body center respectively between the radially lacing wire of each layer；
(4) oxidizing slag on heat treatment furnace trolley is cleaned up, chassis places smooth monolayer parallels at interval of 800 ~ 1000mm, equidistantly put with revolution shape, double-deck parallels is placed at revolving body center, and by the cross lacing wire of the chill they sup-port bottom of corresponding height, prevent double-deck lacing wire lower end without supporting tenesmus, thus cause foundry goods Leading Edge Deformation, when additionally putting parallels, parallels should be avoided and stop heat-treatment furnace burner, in order to avoid each regional temperature of heat treatment burner hearth is uneven, foundry goods is caused to be deformed by temperature differences effect.
Use the above-mentioned frock using method of the present invention, the radial direction lacing wire of corresponding number of plies sum amount is set according to the thin-walled revolution workpiece foundry goods of different blade diameter length ratio sizes, it is achieved during large thin wall casting heat treatment, multiple equilibrium supports, and prevents heat treating castings from deforming.
Accompanying drawing explanation
Fig. 1 is large thin-wall rotary type steel-casting heat treatment tooling supporting construction schematic diagram.
Fig. 2 is the top view of Fig. 1.
Wherein, 1 revolving body；2 radially lacing wires；3 support bars；4 monolayer parallels；5 double-deck parallels.
Detailed description of the invention
Embodiment 1
It is the large thin-wall rotary type steel-casting heat treatment tooling of the present invention as depicted in figs. 1 and 2, including two-layer or two-layer arrangement above in revolving body 1 for supporting some radial direction lacing wires 2 of revolving body 1 inwall, each radially lacing wire 2 of every layer is intersected in revolving body 1 centre of gyration and fixes, it is provided with vertical support bar 3 between adjacent lacing wire 2 joining of radial direction up and down and below the joining of orlop radially lacing wire 2, radially between lacing wire 2 and revolving body 1 inwall, spot welding is fixed, and radially lacing wire 2 is welded and fixed in intersection, revolving body 1 center.
For realizing and radially uniform support upper and lower to revolving body foundry goods further, the radial direction lacing wire 2 of neighbouring layer is crisscross arranged along the radial angle of revolving body 1.As shown in Figure 2, what bold portion referred to the radial direction lacing wire on upper strata arranges position, the instruction of dotted line position is that the radial direction lacing wire of lower floor arranges position, the radial direction lacing wire being crisscross arranged up and down on this figure, support to revolving body 1 foundry goods more equalizes, and can reduce the heat treatment deformation of non-supported position revolving body further.
Supporting for adapting to differing heights size revolving body 1 further, the vertical interval of adjacent layer radially lacing wire 2 is 0.3 0.5 meters, and the superiors' radially lacing wire is 0.25 0.35 away from the radial direction lacing wire vertical dimension away from revolving body lower port described in revolving body upper port and orlop.
For realizing uniform support further, the angle between the lacing wire 1 of every layer of radial direction is 45 °, 60 ° or 90 °.
For making the synchronization telescope deformation in heat treatment of support member and revolving body, radially lacing wire 1 is that congruent with foundry goods and that size is suitable foundry goods running channel is made.
For preventing heat treatment deformation further, the lower end peripheral of revolving body 1 is equidistantly provided with some single-layer pad 4 ferrum, and undermost support bar 3 lower end is supported by double-deck parallels 5.
The heat treatment tooling of the present invention, by radially arranging radially lacing wire 2 supporting construction and, with support equilibrium during holding thin-walled revolution workpiece 1 heat treatment, prevent heat treatment deformation with longitudinal equalization in revolving body 1；And several radial direction lacing wires 2 of equalization setting realize multi-faceted support, the support connection area of single support member and revolution body wall can be reduced, reduce size and the weight of single support member, each radially lacing wire 2 only need to be connected by spot welding between revolution body wall, so that the dismounting of radially lacing wire 2 after heat treatment, reduce the cutting damage of foundry goods spot welding support zone, reduce postorder process work, improve castings production efficiency, shorten the production cycle.
Embodiment 2
Use the using method that above-mentioned large thin-wall rotary type steel-casting heat treatment tooling prevents heat treating castings from deforming, a diameter of 4 meters of large thin-wall steel-casting in this method, a height of 1 meter, the wall thickness of revolving body is 40mm, it is big that the method using prior art carries out heat treatment deformation amount, later stage Shape correction workload is big, and the method for the present invention arranges the supporting tool within revolving body as follows before carrying out heat treatment:
1) in the present embodiment, radially lacing wire 1 arranges upper and lower two-layer, and between radial direction lacing wire adjacent in every layer, angle is 90 °, and levels radially lacing wire is 45 ° and is crisscross arranged, the vertical dimension of levels radially lacing wire is 0.4 meter, and far from upper end and lower floor, the distance away from lower end is 0.3 meter on upper strata；
(2) choose the running channel of the length respective numbers suitable with revolving body radial dimension or the support rod member of corresponding size as radial direction lacing wire, two ends weld before cutting or grinding process, to remove the impurity on radially surface, lacing wire welding position；
(3) parameters such as the angle between the radial direction lacing wire number of plies determined by step (1), each interlamellar spacing and every layer radially lacing wire, radial direction lacing wire 2 is fixed with revolving body 1 spot welding, each radially lacing wire 2 is welded and fixed in intersection, revolving body center, is welded and fixed support bar 3 in intersection, revolving body 1 center respectively between the radially lacing wire 2 of each layer；
(4) oxidizing slag on heat treatment furnace trolley is cleaned up, chassis places a monolayer parallels 4 at interval of about 800mm, equidistantly put with revolving body 1 shape, double-deck parallels 5 is placed at revolving body 1 center, and by the cross lacing wire of the chill they sup-port bottom of corresponding height, prevent bottom lacing wire lower end without supporting tenesmus, thus cause foundry goods Leading Edge Deformation, when additionally putting parallels, parallels should be avoided and stop heat-treatment furnace burner, in order to avoid each regional temperature of heat treatment burner hearth is uneven, foundry goods is caused to be deformed by temperature differences effect.
Claims (2)
1. large thin-wall rotary type steel-casting heat treatment tooling prevents the using method that heat treating castings deforms, and comprises the steps:
(1) according to pending revolving body ratio of height to diameter, the most radially the lacing wire number of plies and the quantity of every layer of radial direction lacing wire are set, if the height of revolving body is 0.8 1.2 meters, then radially lacing wire arranges two-layer, vertical dimension between two-layer is 0.3 0.4 meters, the height of revolving body is more than 1.2 meters, and the vertical dimension of adjacent radial lacing wire is 0.4 0.5 meters；The angle of the diameter revolving body every layer less than 5 meters radially lacing wire is 90 °, and the angle of the revolving body every layer of a diameter of 5 10 meters radially lacing wire is 60 °, and the angle of the diameter revolving body every layer more than 10 meters radially lacing wire is 45 °；
(2) choose the running channel of the length respective numbers suitable with revolving body radial dimension or the support rod member of corresponding size as radial direction lacing wire, two ends weld before cutting or grinding process, to remove the impurity on radially surface, lacing wire welding position；
(3) angle between the radial direction lacing wire number of plies determined by step (1), each interlamellar spacing and every layer radially lacing wire, radial direction lacing wire is fixed with revolving body spot welding, each radially lacing wire is welded and fixed in intersection, revolving body center, is respectively welded fixing support bar between each layer radially lacing wire joining；
(4) oxidizing slag on heat treatment furnace trolley is cleaned up, chassis places smooth monolayer parallels at interval of 800 ~ 1000mm, equidistantly put with revolution shape, double-deck parallels is placed at revolving body center, and by the radial direction lacing wire of the chill they sup-port bottom of corresponding height, prevent radially lacing wire lower end from dropping without supporting, thus cause foundry goods Leading Edge Deformation, when additionally putting parallels, parallels should be avoided and stop heat-treatment furnace burner, in order to avoid each regional temperature of heat treatment burner hearth is uneven, foundry goods is caused to be deformed by temperature differences effect.
Using method the most according to claim 1, it is characterised in that the described radial direction lacing wire of neighbouring layer is crisscross arranged along the radial angle of revolving body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533153.2A CN104294024B (en) | 2014-10-11 | Large thin-wall rotary type steel-casting heat treatment tooling and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533153.2A CN104294024B (en) | 2014-10-11 | Large thin-wall rotary type steel-casting heat treatment tooling and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104294024A CN104294024A (en) | 2015-01-21 |
| CN104294024B true CN104294024B (en) | 2017-01-04 |
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Address after: 750021 Tongxin Street 199, Xixia District, Yinchuan, the Ningxia Hui Autonomous Region Patentee after: Share cast steel Co., Ltd Address before: 750021 Tongxin Street 199, Xixia District, Yinchuan, the Ningxia Hui Autonomous Region Patentee before: Ningxia Kocel Group Co., Ltd. |