CN203820849U - Quenching equipment capable of completing quenching, isothermal treatment or tempering in same tank through transferring with hanging basket - Google Patents
Quenching equipment capable of completing quenching, isothermal treatment or tempering in same tank through transferring with hanging basket Download PDFInfo
- Publication number
- CN203820849U CN203820849U CN201420210303.1U CN201420210303U CN203820849U CN 203820849 U CN203820849 U CN 203820849U CN 201420210303 U CN201420210303 U CN 201420210303U CN 203820849 U CN203820849 U CN 203820849U
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- China
- Prior art keywords
- quenching
- isothermal
- hanging basket
- tank
- tempering
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 80
- 230000000171 quenching effect Effects 0.000 title claims abstract description 67
- 238000005496 tempering Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000012266 salt solution Substances 0.000 claims description 30
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 13
- 238000005187 foaming Methods 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000012267 brine Substances 0.000 abstract 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The utility model relates to heat treatment equipment and particularly relates to quenching equipment capable of completing quenching, isothermal treatment or tempering in the same tank through transferring with a hanging basket. The quenching equipment comprises a heating furnace, a discharging station, a quenching tank, an isothermal tank, an air cooling tank, a brine cleaning tank, a clean water cleaning tank and an unloading station, wherein the quenching tank, the isothermal tank, the air cooling tank, the brine cleaning tank and the clean water cleaning tank are sequentially arranged between the discharging station and the unloading station, the quenching tank and the isothermal tank are formed through dividing a big tank communicated with liquid by an adjustable baffle, a transferring mechanical arm is arranged above a position between the discharging station and the unloading station, and a material fetching hook of the transferring mechanical arm is provided with the hanging basket which is used for lifting and transferring a workpiece. According to the quenching equipment, heat energy can be fully utilized, and the cost of heat treatment is reduced; a manner that heat is transferred to the workpiece by liquid is adopted, so that the tempering and isothermal treatment for the workpiece are more uniform in temperature, and a better heat treatment effect is obtained; the automatic transfer of the workpiece in different working media can be realized through the transferring mechanical arm, and a variety of quenching processes can be realized.
Description
Technical field
The utility model relates to equipment for Heating Processing, specifically a kind of quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket.
Background technology
At present, such as bearing ring, the equipment for Heating Processing of the workpiece such as gear ring adopts roller rod or meshbeltfurnace heating more, then enter in the quenching tank by roller rod or guipure and quench, enter roller rod or guipure air-cooled, cleaning equipment, enter isothermal or tempering in roller rod or meshbeltfurnace, the problem existing is: the heat of 1. transferring to quenching salt bath due to workpiece quenching make the to quench salt temperature of salt bath raises, blower fan need to be configured separately or alternate manner carries out cooling to quenching saline solution, heat is discharged in atmosphere, and isothermal or tempering process constant-temperature oven (salt bath) or tempering stove used thereafter needs to be equipped with separately heating system, make workpiece be heated to isothermal or the tempering temperature of processing requirement and keep certain hour, quenching tank need to be managed cooling, constant-temperature oven (salt bath) or tempering stove need additional heat, energy dissipation is serious.2. because workpiece need to enter multiple working medium, equipment needs many group transmission rigs, device structure complexity, and cost of investment, running cost are high.3. transmission rig contacts with working medium, and burn into distortion is serious, and failure rate is high.
Utility model content
The utility model is intended to address the above problem, and provides a kind of heat energy to make full use of, and mechanism is simple and reliable, shifts the quenching apparatus that completes quenching, isothermal or tempering in same groove with hanging basket.
The technical scheme that the utility model solves described problem employing is:
One shifts and complete quenching in same groove with hanging basket, the quenching apparatus of isothermal or tempering, comprise process furnace, discharge pedestal, quenching tank, isothermobath, air-cooled groove, salt solution rinse bath, clear water rinse bath, discharging platform, between described discharge pedestal and described discharging platform, order arranges described quenching tank, isothermobath, air-cooled groove, salt solution rinse bath, clear water rinse bath, described quenching tank and described isothermobath by a liquid together with vat be split to form by fender plate, top between discharge pedestal and discharging platform is provided with transfer robot arm, the feeding hook of described transfer robot arm is provided with lifting, shift the hanging basket of workpiece.
The utility model that adopts technique scheme, compared with prior art, its outstanding feature is:
1. liquid transfers to together with, workpiece quenching that heat in salt bath is transported to the isothermal of same salt bath or refined zone from quench zone and for isothermal insulation or tempering heating and the insulation of workpiece in quenching tank and isothermobath (or tempering bath) groove.Heat energy recycling, has reduced the thermal treatment cost of salt bath quenching and isothermal thereafter (or tempering) technique.
2. adopt the mode of liquid to workpiece transferring heat, make the tempering of workpiece, isothermal temperature more even, obtain better thermal effectiveness.
3. the transfer organization that adopts hanging basket to separate with transfer robot arm, feeding action is simple, reliable, and mechanical manipulator shifts, and makes production unit drive mechanism simple, has improved the reliability of production line.
4. transfer robot arm separates with hanging basket, and transfer robot arm does not contact with hardening liquid, has improved the work-ing life of transfer robot arm.
5. by transfer robot arm, can realize the automatic transfer of workpiece at different operating medium, can realize multiple quenching technology, make miscellaneous equipment mechanism simple simultaneously, cost of investment reduces greatly.
As preferably, the utility model further technical scheme is:
Described discharge pedestal and described discharging platform are made up of the roller bar type workpiece conveying mechanism of support, rack-mount portion respectively, on described roller bar type workpiece conveying mechanism, are provided with detection grating.
Described transfer robot arm comprises two end supports, on described two end supports, X direction guiding rail is housed respectively, on described X direction guiding rail, be respectively arranged with X to dolly, two X are to being fixed with Y-direction guide rail between dolly, on described Y-direction guide rail, be provided with Y-direction dolly, on described Y-direction dolly, Z-direction lift rail is housed, described Z-direction lift rail lower end is provided with described feeding hook.
Described hanging basket is skeleton construction, base of frame is equipped with the back up pad that is spaced layout, described each back up pad is corresponding with the roller rod gap institute in the roller bar type workpiece conveying mechanism operating on described discharge pedestal and discharging platform, when hanging basket declines or promotes described in each back up pad through the excellent gap of corresponding roller.
On described framework, heat insulating board is housed.
In described quenching tank, middle part arranges a quench station, and quench station both sides are provided with agitator and fan.
Described isothermobath inside circumference is equipped with heating unit, is furnished with three rows, three isothermal stations of every row in groove, is provided with flow and adjusts plate in groove.
Described air-cooled groove inside circumference is equipped with blower fan, is furnished with a row totally three air-cooled stations in groove.
Described salt solution rinse bath and clear water rinse bath are the dual-slot structures being split to form at a large cell body inner route clapboard, large cell body inside circumference is equipped with heater element, in salt solution rinse bath, be furnished with a row totally three salt solution washing stations, salt solution rinse bath inner bottom part is provided with salt solution foaming tube, in clear water rinse bath, be furnished with a row totally three clear water washing stations, clear water rinse bath inner bottom part is provided with clear water foaming tube.
Brief description of the drawings
Fig. 1 is the utility model embodiment equipment layout structural representation.
Fig. 2 is discharge pedestal structural representation.
Fig. 3 is roller bar type workpiece conveying mechanism vertical view.
Fig. 4 is barrel structure schematic diagram.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is quenching tank and isothermobath structural representation vertical view.
Fig. 7 is air-cooled groove structural representation vertical view.
Fig. 8 is salt solution rinse bath and clear water rinse bath structural representation.
Fig. 9 is the vertical view of Fig. 8
Figure 10 is discharging platform structural representation.
Figure 11 is transfer robot arm structural representation.
In figure: process furnace 1, discharge pedestal 2, hanging basket 3, quenching tank 4, fender plate 5, isothermobath 6, air-cooled groove 7, salt solution rinse bath 8, clear water rinse bath 9, discharging platform 10, workpiece 11, transfer robot arm 12, feeding hook 13, discharge pedestal support 21, roller bar type workpiece conveying mechanism 22, detect grating 23, roller rod 24, back up pad 31, framework 32, heat insulating board 33, suspension rod 34, quench station 41, agitator 42, fan 43, flow is adjusted plate 61, heating unit 62, isothermal station 63A, 63B, 63C, blower fan 71, air-cooled station 72A, 72B, 72C, salt solution foaming tube 81, dividing plate 82, heater element 83, salt solution washing station 84A, 84B, 84C, clear water foaming tube 91, clear water washing station 92A, 92B, 92C, discharging platform support 101, two end supports 111, X direction guiding rail 112, X is to dolly 113, Y-direction guide rail 114, Y-direction dolly 115, Z-direction lift rail 116.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, and object is only to understand better the utility model content.Therefore, the cited case unrestricted protection domain of the present utility model.
Referring to Fig. 1, shifting and completing quenching in same groove with hanging basket described in the present embodiment, the quenching apparatus of isothermal or tempering, by process furnace 1, discharge pedestal 2, hanging basket 3, quenching tank 4, isothermobath 6, air-cooled groove 7, salt solution rinse bath 8, clear water rinse bath 9, discharging platform 10, transfer robot arm 12, feeding hook 13 forms, wherein, quenching tank 4, isothermobath 6, air-cooled groove 7, salt solution rinse bath 8, clear water rinse bath 9 arranges to discharging platform 10 orders successively from discharge pedestal 2, transfer robot arm 12 arranges the top between discharge pedestal 2 and discharging platform 10, the feeding hook 13 of transfer robot arm 12 is provided with lifting, shift the hanging basket 3 of workpiece 11.
Referring to Fig. 2, Fig. 3, Figure 10, discharge pedestal 2 is made up of discharge pedestal support 21, the roller bar type workpiece conveying mechanism 22 that is arranged on discharge pedestal support 21 tops, discharging platform 10 is made up of discharging platform support 101, the roller bar type workpiece conveying mechanism 22 that is arranged on discharging platform support 101, is provided with and detects grating 23 on roller bar type workpiece conveying mechanism 22.
Referring to Figure 11, transfer robot arm 12 is made up of to parts such as dolly 113, Y-direction guide rail 114, Y-direction dolly 115, Z-direction lift rail 116 two end supports 111, X direction guiding rail 112, X, on two end supports 111, X direction guiding rail 112 is housed respectively, on X direction guiding rail 112, be respectively arranged with X to dolly 113, two X are fixed with Y-direction guide rail 114 between dolly 113, on Y-direction guide rail 114, be provided with Y-direction dolly 115, Z-direction lift rail 116 is housed on Y-direction dolly 115, and Z-direction lift rail 116 lower ends are provided with feeding hook 13.
Referring to Fig. 4, Fig. 5, hanging basket 3 is skeleton construction, the back up pad 31 that is spaced layout is equipped with in framework 32 bottoms, heat insulating board 33 is housed on framework 32, framework 32 tops are provided with suspension rod 34, each back up pad 31 is corresponding with the roller rod 24 gap (see figure 3) institutes in the roller bar type workpiece conveying mechanism 22 operating on discharge pedestal 2 and discharging platform 10, and when hanging basket 3 declines or promotes, each back up pad 31 is through the gap of corresponding roller rod 24.
Referring to Fig. 6, quenching tank 4 and isothermobath 6 by a liquid together with vat be split to form by fender plate 5, the interior middle part of quenching tank 4 arranges a quench station 41, quench station 41 both sides are provided with agitator 42 and fan 43; Isothermobath inside circumference is equipped with heating unit 62, is furnished with three rows, three isothermal station 63A of every row, 63B, 63C in groove, is provided with flow and adjusts plate 61 in groove.
Referring to Fig. 7, air-cooled groove 7 inside circumferences are equipped with blower fan 71, are furnished with a row totally three air-cooled station 72A, 72B, 72C in groove.
Referring to Fig. 8, Fig. 9, salt solution rinse bath 8 and clear water rinse bath 9 are the dual-slot structures that are split to form at a large cell body inner route clapboard 82, large cell body inside circumference is equipped with heater element 83, in salt solution rinse bath 8, be furnished with a row totally three salt solution washing station 84A, 84B, 84C, salt solution rinse bath 8 inner bottom parts are provided with salt solution foaming tube 81; In clear water rinse bath 9, be furnished with a row totally three clear water washing station 92A, 92B, 92C, clear water rinse bath 9 inner bottom parts are provided with clear water foaming tube 91.
Describe for the quenching technology that example is realized aforesaid device with the bainitic hardening of bearing salt bath below.
Bearing salt bath bainite adopts hanging basket to shift, and with groove quenching, isothermal quenching technique, carries out in the steps below:
A. workpiece 11 is after the interior heating of process furnace 1 completes, and quick roll moves on the roller bar type workpiece conveying mechanism 22 on discharge pedestal 2.
B. workpiece 11 is to after on roller bar type workpiece conveying mechanism 22, and transfer robot arm 12 is mentioned hanging basket 3 together with workpiece 11.
C. after hanging basket 3 and workpiece 11 are mentioned, transfer robot arm 12 moves quickly into quench station 41 tops of quenching tank 4, and transfer robot arm 12 drops in hardening liquid.
D. transfer robot arm 12 drops to after lower limit, and transfer robot arm 12 rises to upper limit after mobile 50mm backward, and hanging basket 3 and workpiece 11 are placed on to quenching in quench station 41, completes blowing action.
E. transfer robot arm 12 moves quickly into the isothermal station 63A top of isothermobath 6; Fast-descending.
F. transfer robot arm 12 drops to after lower limit, and transfer robot arm 12 rises to upper limit after moving forward 50mm, and the hanging basket 3 that isothermal is completed is mentioned together with workpiece 11, completes feeding action.
G. transfer robot arm 12 moves quickly into the air-cooled station 72A top of air-cooled groove 7, and fast-descending is put into air-cooled groove 7 by hanging basket 3 and workpiece 11 and carried out air-cooled.Hanging basket 3 and the workpiece 11 of the interior air-cooled station 72C of air-cooled groove 7 are mentioned simultaneously.Taking, putting material action be not repeated in this description with d/f.
H. transfer robot arm 12 moves quickly into the salt solution washing station 84A top of salt solution rinse bath 8, and fast-descending is put into salt solution rinse bath 8 by hanging basket 3 and workpiece 11 and cleaned.The hanging basket 3 of interior salt solution rinse bath 8 salt solution washing station 84C and workpiece 11 are mentioned simultaneously.Taking, putting material action be not repeated in this description with d/f.
I. transfer robot arm 12 moves quickly into the clear water washing station 92A top of clear water rinse bath 9, and fast-descending is put into clear water rinse bath 9 by hanging basket 3 and workpiece 11 and cleaned.The hanging basket 3 of interior clear water rinse bath 9 clear water washing station 92C and workpiece 11 are mentioned simultaneously.Taking, putting material action be not repeated in this description with d/f.
J. transfer robot arm 12 moves quickly into the top of discharging platform 10, and hanging basket 3 and workpiece 11 are put into roller rod 24 gaps on the roller bar type workpiece conveying mechanism 22 on discharging platform 10 by fast-descending.
K. transfer robot arm 12 drops to after lower limit, and the roller rod electric motor starting of roller bar type workpiece conveying mechanism 22, is sent to workpiece 11 to unload material level, and unloading material level has material detector switch to send signal, and roller rod motor stops, and completes discharging action.
L. transfer robot arm 12 fast rise, mention hanging basket 3.
M. transfer robot arm 12 moves quickly into the top of discharge pedestal 2, and hanging basket 3 is put into roller rod 24 gaps on roller bar type workpiece conveying mechanism 22 by fast-descending.
N. transfer robot arm 12 blowings break off relations, and fast rise, moves to quench station 41 tops.The isothermal station 63A that the hanging basket 3 that fast-descending completes quenching and workpiece 11 are put into isothermobath 6 carries out isothermal.Taking, putting material action be not repeated in this description with d/f.
O. transfer robot arm 12 moves quickly into the top of discharge pedestal 2, fast-descending, and transfer robot arm 12 drops to after lower limit, and transfer robot arm 12 moves forward after 50mm, waits for next cycle discharging, enters next circulation.
For meeting the process time requirements such as isothermal, air-cooled, cleaning, maximum production requirement; Isothermal, air-cooled, washing station have been set up A, B, many stations of C side by side.Transfer robot arm 12 take, put position computer control, course of action no longer repeats.
Claims (9)
1. one kind is shifted and complete quenching in same groove with hanging basket, the quenching apparatus of isothermal or tempering, comprise process furnace, discharge pedestal, quenching tank, isothermobath, air-cooled groove, salt solution rinse bath, clear water rinse bath, discharging platform, it is characterized in that, between described discharge pedestal and described discharging platform, order arranges described quenching tank, isothermobath, air-cooled groove, salt solution rinse bath, clear water rinse bath, described quenching tank and described isothermobath by a liquid together with vat be split to form by fender plate, top between discharge pedestal and discharging platform is provided with transfer robot arm, the feeding hook of described transfer robot arm is provided with lifting, shift the hanging basket of workpiece.
2. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, it is characterized in that, described discharge pedestal and described discharging platform are made up of the roller bar type workpiece conveying mechanism of support, rack-mount portion respectively, on described roller bar type workpiece conveying mechanism, are provided with detection grating.
3. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, it is characterized in that, described transfer robot arm comprises two end supports, on described two end supports, X direction guiding rail is housed respectively, on described X direction guiding rail, be respectively arranged with X to dolly, two X, to being fixed with Y-direction guide rail between dolly, are provided with Y-direction dolly on described Y-direction guide rail, on described Y-direction dolly, Z-direction lift rail is housed, described Z-direction lift rail lower end is provided with described feeding hook.
4. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, it is characterized in that, described hanging basket is skeleton construction, base of frame is equipped with the back up pad that is spaced layout, described each back up pad is corresponding with the roller rod gap institute in the roller bar type workpiece conveying mechanism operating on described discharge pedestal and discharging platform, when hanging basket declines or promotes described in each back up pad through the excellent gap of corresponding roller.
5. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 4, is characterized in that, on described framework, heat insulating board is housed.
6. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, is characterized in that, in described quenching tank, middle part arranges a quench station, and quench station both sides are provided with agitator and fan.
7. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, it is characterized in that, described isothermobath inside circumference is equipped with heating unit, is furnished with three rows, three isothermal stations of every row in groove, is provided with flow and adjusts plate in groove.
8. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, is characterized in that, described air-cooled groove inside circumference is equipped with blower fan, is furnished with a row totally three air-cooled stations in groove.
9. the quenching apparatus that completes quenching, isothermal or tempering in same groove that shifts with hanging basket according to claim 1, it is characterized in that, described salt solution rinse bath and clear water rinse bath are the dual-slot structures being split to form at a large cell body inner route clapboard, large cell body inside circumference is equipped with heater element, in salt solution rinse bath, be furnished with a row totally three salt solution washing stations, salt solution rinse bath inner bottom part is provided with salt solution foaming tube, in clear water rinse bath, be furnished with a row totally three clear water washing stations, clear water rinse bath inner bottom part is provided with clear water foaming tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210303.1U CN203820849U (en) | 2014-04-28 | 2014-04-28 | Quenching equipment capable of completing quenching, isothermal treatment or tempering in same tank through transferring with hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210303.1U CN203820849U (en) | 2014-04-28 | 2014-04-28 | Quenching equipment capable of completing quenching, isothermal treatment or tempering in same tank through transferring with hanging basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820849U true CN203820849U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420210303.1U Expired - Lifetime CN203820849U (en) | 2014-04-28 | 2014-04-28 | Quenching equipment capable of completing quenching, isothermal treatment or tempering in same tank through transferring with hanging basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924047A (en) * | 2014-04-28 | 2014-07-16 | 唐山亚捷机械有限公司 | Quenching equipment for completing quenching, isothermal treatment or tempering in same slot by transferring through hanging basket |
| CN108285961A (en) * | 2018-03-15 | 2018-07-17 | 芜湖超源力工业设计有限公司 | A kind of Gear Processing fast quenching apptss |
-
2014
- 2014-04-28 CN CN201420210303.1U patent/CN203820849U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924047A (en) * | 2014-04-28 | 2014-07-16 | 唐山亚捷机械有限公司 | Quenching equipment for completing quenching, isothermal treatment or tempering in same slot by transferring through hanging basket |
| CN108285961A (en) * | 2018-03-15 | 2018-07-17 | 芜湖超源力工业设计有限公司 | A kind of Gear Processing fast quenching apptss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 064002 village north of song he Ma Zhuang village, north of Tangshan City Road, Hebei Province Patentee after: Yajie science and Technology (Tangshan) Limited by Share Ltd Address before: 064002 village north of song he Ma Zhuang village, south of Tangshan City, Hebei Province Patentee before: Tangshan Yajie Machinery Co., Ltd. |
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| CP03 | Change of name, title or address |