CN106319170A - Pit furnace quenching tool for heat treatment and assembling method thereof - Google Patents
Pit furnace quenching tool for heat treatment and assembling method thereof Download PDFInfo
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- CN106319170A CN106319170A CN201610912645.1A CN201610912645A CN106319170A CN 106319170 A CN106319170 A CN 106319170A CN 201610912645 A CN201610912645 A CN 201610912645A CN 106319170 A CN106319170 A CN 106319170A
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- hanging
- suspension
- axle part
- heat treatment
- suspension rod
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/005—Furnaces in which the charge is moving up or down
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a pit furnace quenching tool for heat treatment and an assembling method thereof. A tool mechanism comprises a hanging base, a hanging rod and a hanging bracket. The hanging bracket is in a disc shape. A connecting hole connected with the hanging rod is formed in the middle of the hanging bracket. A plurality of pairs of hanging claws are distributed around the center in the circumferential direction of the hanging bracket at equal angles and intervals. A hanging opening is formed between the hanging claws in each pair. A cross pin which is inserted between the two corresponding hanging claws in a penetrating mode is arranged in the corresponding hanging opening. A hanging ring is arranged in the middle of each cross pin. A shaft part is fixed to the lower portion of each hanging ring. The assembling method of the tool comprises the steps of manufacturing of the tool, assembling of the tool, installing of the shaft parts, installing of the tool and the like. In the step of installing of the shaft parts, the number of shaft parts needing to be installed is judged manually, and the shaft parts are symmetrically hung around the center of the hanging bracket. By the adoption of the structure, multiple workpieces can be treated at the same time, so that the production efficiency is improved, and the production cost is reduced; and in addition, the workpieces are hung overhead, so that the probability of heat-treatment distortion is lowered; and by adoption of the assembling method, the adaptability of the tool to heat treatment can be improved, and the stability in the process of hanging the workpieces on the tool is improved.
Description
Technical field
The present invention relates to a kind of heat treatment pit-type furnace quenching frock and assembly method thereof, belong to heat treatment hanger frock technology
Field.
Background technology
Carburizing, quenching are the important contents of Technology for Heating Processing, generally use large-scale shaft furnace and quench workpiece in practice
Burning hot process, the general weight of handled workpiece is relatively big, and needs higher heating-up temperature and longer heat time heating time.Have
Workpiece even weigh 2-3 ton, heating-up temperature reaches 860 DEG C, and for up to 25 hours, common frock was difficult to bear.When
Front most of frock single-piece hanging can only produce or there is the problem of steadiness, and production efficiency is low.
Summary of the invention
It is an object of the invention to: a kind of heat treatment pit-type furnace quenching frock is provided, more than one piece workpiece can be processed simultaneously, improve
Production efficiency, reduces production cost, and the unsettled hanging of workpiece, decreases the generation of Heat Treatment Distortion；Further, the present invention also carries
For a kind of method making heat treatment pit-type furnace quenching frock, the method can improve the frock adaptability to heat treatment, and
Improve the steadiness during frock hanging workpiece, and simple and easy to operate, save manpower.
In order to reach object above, technical scheme is as follows: a kind of heat treatment pit-type furnace quenching frock, including hanging
Seat, be located at the suspension rod that flap seat bottom is connected with flap seat, be located at the suspension bracket of suspension rod bottom, it is characterised in that: described flap seat is set up in
Outside shaft furnace, described suspension rod bottom is positioned at shaft furnace, and the suspension bracket connected bottom it is disc-shaped, have in the middle part of described suspension bracket with
The connecting hole that suspension rod connects, they are some to hanging pawl circumferentially around the equiangularly spaced distribution in center, and every pair is hung formation hanger between pawl,
Being provided with in described hanger and be interspersed in two lateral pins hanging between pawl, be provided with suspension ring in the middle part of described lateral pin, axle zero is fixed in suspension ring bottom
Part；Rugosity d of described suspension ring1The quality G(units/kg of (unit mm) and axle part) relation meet: G=κ π d1 2/ 4, its
Middle k is safety coefficient, and span is 0.8 ~ 0.9；The width d of described hanger2Meet: d1≤d2≤3d1/2.For ensureing work
The bearing capacity of dress, during shove charge, suspension rod is placed on outside stove through bell hole together with flap seat, prevents coordinating of suspension rod and latch
Unstability occurs under the influence of furnace high-temperature；Suspension bracket and axle part that suspension rod bottom connects are placed in stove so that axle part
Can be heat-treated.Suspension bracket has and multipair hangs pawl, can hang multiple axle part by one-step and process more than one piece workpiece, improve work effect
Rate.Hanging pawl around the equiangularly spaced distribution in suspension bracket center, beneficially suspension bracket balance, enhances the stability of frock.Suspension ring rugosity is
The important indicator of its bearing capacity, the two is satisfied with certain relation, it is ensured that the steadiness of carrying.After in hanger, suspension ring are set,
Therebetween the gap width formed is unsuitable excessive, excessive, improves the requirement to lateral pin bearing capacity.
Further, described suspension rod top is provided with pin hole, has a diameter bracer more than connecting hole diameter bottom it,
Described suspension rod is connected with flap seat by latch.After frock assembles, a bracer is supported on suspension bracket bottom, plays the effect of load-bearing lifting-frame.
Further, described suspension ring are similar V-arrangement, are overlapped on lateral pin inside its drift angle, and fixing end is extended in its underpart
Fix with axle part, suitable with the outer surface of described lateral pin inside the drift angle of described suspension ring.The suspension ring of V-arrangement have to a certain degree
Stability, match with lateral pin inside suspension ring drift angle, after axle part is fixed in its underpart, suspension ring are difficult to double swerve, improve
Consolidating of axle part,.
Further, described suspension bracket is sulky derrick, and angularly distribution three is to hanging pawl with 120 ° for its circumference, and its underpart is hung
Gross mass G of axle part1≤2600kg.Or, described suspension bracket is corner suspension bracket, and it is right that its circumference is angularly distributed four with 90 °
Hang pawl, gross mass G of the axle part of its underpart hanging2≤2000kg。
A kind of heat treatment pit-type furnace quenching frock assembly method, comprises the steps: the first step, makes frock: make and hang
Seat, flap seat uses ZG25 material to cast, and normalized treatment after casting, normalizing process is: 930 DEG C × 3.5H, air cooling；Make latch, insert
Pin uses 20 steel or A3 steel rolling to form；Making suspension rod, suspension rod uses 20 steel forgings to form, normalized treatment after forging, normalizing process
For: 930 DEG C × 3.5H, air cooling, make pin hole at suspension rod top afterwards, add a bracer at bottom machine；Make suspension bracket, suspension bracket
Using ZG200-400 material to cast, normalized treatment after casting, normalizing process is: 930 DEG C × 3.5H, air cooling；Make suspension ring, suspension ring
20 steel rollings are used to form；Making lateral pin, lateral pin uses 20 steel rollings to form；Second step, assembly tool: by suspension rod top under
Up insert the connecting hole in the middle part of suspension bracket so that it is a bracer of bottom abuts suspension bracket, bottom suspension rod top alignment flap seat, use
Latch connects；3rd step, installs axle part: preheat axle part, at axle part welded top suspension ring after preheating, by suspension ring after welding
Penetrating two and hang between pawl, then every pair at suspension bracket hangs interspersed lateral pin between pawl, allows lateral pin pass suspension ring hole；4th, lay
Frock；Suspension bracket and the axle part hung thereof are put into inside shaft furnace, and adjusts its height so that the pin hole at suspension rod top
It is positioned at outside shaft furnace with latch, then fixes flap seat.
Further, in described 3rd step: before preheating axle part, axle part to be mounted needed for artificial judgment
Number, and at axle part welded top suspension ring；If hanger quantity is even number, then all hang in each hanger axle part or
Axle part less than the even number axle part of hanger quantity and is hung by person's hanging around suspension bracket centrosymmetry；If hanger quantity is
Odd number, then all hang axle part in each hanger.Adopt in this way, be conducive to keeping the balance of frock, stability.
Further, described suspension ring bottom is welded and fixed with axle part, and its fusion length L span is 120 ~ 150mm.
Fusion length meets this condition and then can not come off with holding shaft part.
Further, described axle part preheating temperature is 450 DEG C, time 2h ~ 4h.Preheating is favorably improved the essence of axle part
Degree.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail, wherein:
Fig. 1 is that embodiment one quenches frock overall structure schematic diagram；
Fig. 2 is embodiment one axle part hanging structure schematic diagram；
Fig. 3 is embodiment one sulky derrick structural representation；
Fig. 4 is two or four jiaos of hanger structure schematic diagrams of embodiment.
In figure: 1 flap seat, 2 suspension rods, 2-1 pin hole, 2-2 props up bracer, 3 sulky derricks, 3-1 sulky derrick connecting hole, 3-2
Sulky derrick hangs pawl, 3-3 sulky derrick hanger, 4 four jiaos of suspension brackets, tetra-jiaos of suspension bracket connecting holes of 4-1, and tetra-jiaos of suspension brackets of 4-2 hang pawl,
Tetra-jiaos of suspension bracket hanger of 4-3,5 lateral pins, 6 suspension ring, 7 axle parts, 8 latches.
Detailed description of the invention
Embodiment one
In order to be more fully understood that the present invention, below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.Such as Fig. 1
To shown in Fig. 3, a kind of heat treatment pit-type furnace quenching frock, including flap seat 1, it is located at the suspension rod 2 that flap seat 1 bottom is connected with flap seat,
Being located at the sulky derrick 3 of suspension rod 2 bottom, flap seat 1 is set up in outside shaft furnace, and suspension rod 2 bottom is positioned at shaft furnace.
As it is shown on figure 3, the sulky derrick 3 connected bottom it is disc-shaped, there is in the middle part of it triangle being connected with suspension rod 2 and hang
Frame connecting hole 3-1, it hangs pawl 3-2 circumferentially around center with hexagonal angle degree three pairs of sulky derricks spaced apart, and every pair is hung shape between pawl
Become sulky derrick hanger 3-3, be provided with in it and be interspersed in two lateral pins 5 hanging between pawl, in the middle part of lateral pin 5, be provided with suspension ring 6, suspension ring 6
Gross mass G is fixed in bottom1Axle part 7 equal to 2600kg.Rugosity d of suspension ring 61The quality G(unit of (unit mm) and axle part
Kg) relation meets: G=κ π d1 2/ 4, wherein k is safety coefficient, and value is 0.85；The width of sulky derrick hanger 3-3
d2Meet: d2=6d1/5.Suspension ring 6 rugosity is the important indicator of its bearing capacity, and the two meets this relation, it is ensured that consolidating of carrying
Property.For ensureing the bearing capacity of frock, during shove charge, suspension rod 2 is placed on outside stove together with flap seat 1 through bell hole, prevents suspension rod 2
With coordinating of latch 8, unstability occurs under the influence of furnace high-temperature；The sulky derrick 3 of suspension rod 2 bottom connection and axle part
It is placed in stove so that axle part 7 can be heat-treated.Sulky derrick 3 can once hang three axle parts and process, and improves work
Make efficiency.Sulky derrick hangs pawl 3-2 around the equiangularly spaced distribution in sulky derrick 3 center, all must overwork 3 during each heat treatment
Axle part, beneficially sulky derrick 3 keep balance, enhance the stability of frock.After in hanger, suspension ring are set, therebetween
The gap width formed is unsuitable excessive, excessive, improves the requirement to lateral pin 5 bearing capacity.Suspension rod 2 top is provided with pin hole
2-1, has a diameter bracer 2-2 more than sulky derrick connecting hole 3-1 diameter bottom it, suspension rod 2 is by latch 8 and flap seat 1
Connect.After frock assembles, a bracer 2-2 is supported on suspension bracket bottom, plays the effect of load-bearing lifting-frame.Suspension ring 6 are in similar V-arrangement, and it pushes up
Being overlapped in inside angle on lateral pin 5, its underpart is extended fixing end and is fixed, with lateral pin 5 inside the drift angle of suspension ring 6 with axle part 7
Outer surface is suitable.The suspension ring of V-arrangement have a certain degree of stability, match with lateral pin 5 inside suspension ring 6 drift angle, its underpart
After fixing axle part 7, suspension ring 6 are difficult to double swerve, improve the steadiness of axle part.
A kind of heat treatment pit-type furnace quenching frock assembly method, comprises the steps: the first step, makes frock: make and hang
Seat 1, flap seat 1 uses ZG25 material to cast, normalized treatment after casting, and normalizing process is: 930 DEG C × 3.5H, air cooling；Make latch 8,
Latch 8 uses 20 steel or A3 steel rolling to form；Making suspension rod 2, suspension rod 2 uses 20 steel forgings to form, normalized treatment after forging, normalizing
Technique is: 930 DEG C × 3.5H, air cooling, makes pin hole at suspension rod 2 top afterwards, adds a bracer 2-2 at bottom machine；Make
Sulky derrick 3, uses ZG200-400 material to cast, and normalized treatment after casting, normalizing process is: 930 DEG C × 3.5H, air cooling；Make
Suspension ring 6, suspension ring 6 use 20 steel rollings to form；Making lateral pin 5, lateral pin 5 uses 20 steel rollings to form；Second step, assembly tool:
Suspension rod 2 top is inserted from the bottom up the sulky derrick connecting hole 3-1 in the middle part of sulky derrick so that it is a bracer 2-2 for bottom supports
Connect sulky derrick 3 bottom, bottom suspension rod 2 top alignment flap seat 1, use latch 8 to connect；3rd step, installs axle part 7: pre-
Hot axle part 7, axle part preheating temperature is 450 DEG C, time 3h.Before preheating axle part 7, axle to be mounted needed for artificial judgment
Part 7 number, and at axle part 7 welded top suspension ring；Owing to sulky derrick hanger quantity is odd number, 3, then each
Axle part 7 is all hung in sulky derrick hanger 3-3.Adopt in this way, be conducive to keeping the balance of frock, stability.
At axle part 7 welded top suspension ring 6 after preheating, after welding, suspension ring are penetrated two sulky derricks and hangs between pawl 3-2, then at triangle
Every pair of suspension bracket 3 hangs interspersed lateral pin 5 between pawl, allows lateral pin 5 through suspension ring hole；4th step, lays frock；By suspension bracket and hung
The axle part hung is put into inside shaft furnace, and adjusts its height so that pin hole 2-1 and the latch 8 at suspension rod 2 top are positioned at well formula
Outside stove, then fix flap seat.During shove charge, suspension rod is placed on outside stove through bell hole together with flap seat, prevents suspension rod and latch
Coordinate and unstability occurs under the influence of furnace high-temperature.Suspension ring bottom is welded and fixed with axle part, its fusion length L value model
Enclose for 140mm.Fusion length meets this condition and then can not come off with holding shaft part.
Embodiment two
As shown in Figure 4, suspension bracket is corner suspension bracket 4, has corner suspension bracket connecting hole 4-1 in the middle part of it, and its circumference is angularly divided with 90 °
Corner suspension bracket is hung pawl 4-2, gross mass G of the axle part of its underpart hanging by cloth four2=2000kg.Before preheating axle part 7, people
Work judges required axle part 7 number to be mounted, and at axle part 7 welded top suspension ring；Due to corner suspension bracket hanger 4-3
Quantity is even number, 4, then can all hang axle part 7 in each corner suspension bracket hanger 4-3 or hang at symmetrical two
2 axle parts of hanging in mouth hanging.Once can process 2 or 4 workpiece.The present embodiment remainder is with embodiment one.Corner is hung
Frame can be sling 2 or 4 axle parts simultaneously, improves heat treatment efficiency.
In addition to the implementation, the present invention can also have other embodiments.All employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (9)
1. a heat treatment pit-type furnace quenching frock, including flap seat (1), is located at the suspension rod (2) that flap seat bottom is connected with flap seat, if
Suspension bracket in suspension rod bottom, it is characterised in that: described flap seat (1) is set up in outside shaft furnace, and described suspension rod (2) bottom is positioned at well formula
In stove, the suspension bracket connected bottom it is disc-shaped, has the connecting hole being connected with suspension rod (2) in the middle part of described suspension bracket, its circumferentially around
The equiangularly spaced distribution in center is some to hanging pawl, and every pair is hung formation hanger between pawl, is provided with and is interspersed in two in described hanger
Hanging the lateral pin between pawl, be provided with suspension ring in the middle part of described lateral pin, axle part is fixed in suspension ring bottom；Rugosity d of described suspension ring1(unit
Mm) with the quality G(units/kg of axle part) relation meet: G=κ π d1 2/ 4, wherein k is safety coefficient, and span is
0.8~0.9；The width d of described hanger2Meet: d1≤d2≤3d1/2。
A kind of heat treatment pit-type furnace quenching frock the most according to claim 1, it is characterised in that: described suspension rod top is provided with
Pin hole (2-1), has its diameter bracer (2-2) more than connecting hole diameter bottom it, described suspension rod (2) passes through latch
(8) it is connected with flap seat (1).
A kind of heat treatment pit-type furnace quenching frock the most according to claim 1, it is characterised in that: described suspension ring (6) are in class
Like V-arrangement, being overlapped on lateral pin (6) inside its drift angle, its underpart is extended fixing end and is fixed with axle part, described suspension ring (6)
Inside drift angle suitable with the outer surface of described lateral pin (5).
A kind of heat treatment pit-type furnace quenching frock the most according to claim 1, it is characterised in that: described suspension bracket is that triangle hangs
Frame (3), its circumference with 120 ° angularly distribution three to hanging pawl, gross mass G of the axle part of its underpart hanging1≤2600kg。
A kind of heat treatment pit-type furnace quenching frock the most according to claim 1, it is characterised in that: described suspension bracket is that corner is hung
Frame (4), its circumference with 90 ° angularly distribution four to hanging pawl, gross mass G of the axle part of its underpart hanging2≤2000kg。
6. a heat treatment pit-type furnace quenching frock assembly method, for assembling the heat described in above-mentioned 1-5 any one claim
Process shaft furnace quenching frock, comprise the steps:
The first step, makes frock: make flap seat, and flap seat uses ZG25 material to cast, and normalized treatment after casting, normalizing process is: 930
DEG C × 3.5H, air cooling；Making latch, latch uses 20 steel or A3 steel rolling to form；Make suspension rod, suspension rod use 20 steel forging and
Becoming, normalized treatment after forging, normalizing process is: 930 DEG C × 3.5H, and air cooling makes pin hole at suspension rod top afterwards, at bottom machine
Add a bracer；Making suspension bracket, suspension bracket uses ZG200-400 material to cast, normalized treatment after casting, and normalizing process is: 930 DEG C ×
3.5H, air cooling；Making suspension ring, suspension ring use 20 steel rollings to form；Making lateral pin, lateral pin uses 20 steel rollings to form；
Second step, assembly tool: the connecting hole in the middle part of suspension bracket is inserted at suspension rod (2) top from the bottom up so that it is the support of bottom
Block (2-2) abuts suspension bracket, by suspension rod top alignment flap seat (1) bottom, uses latch (8) to connect；
3rd step, installs axle part (7): preheat axle part (7), at axle part (7) welded top suspension ring (6) after preheating, weld
After suspension ring (6) penetrated two hang between pawl, then every pair at suspension bracket hangs and interts lateral pin (5) between pawl, allows lateral pin (5) through hanging
Annular distance；
4th step, lays frock；Suspension bracket and the axle part hung thereof are put into inside shaft furnace, and adjust its height so that
Pin hole (2-1) and the latch (8) at suspension rod (2) top are positioned at outside shaft furnace, then fix flap seat (1).
A kind of heat treatment pit-type furnace quenching frock assembly method the most according to claim 6, it is characterised in that: described the
In three steps: before preheating axle part, axle parts count to be mounted needed for artificial judgment, and at axle part welded top suspension ring
(6)；If hanger quantity is even number, then in each hanger, all hang axle part or hanging less than hanger quantity
Axle part is also hung by even number axle part around suspension bracket centrosymmetry；If hanger quantity is odd number, then in each hanger
All hanging axle parts.
A kind of heat treatment pit-type furnace quenching frock assembly method the most according to claim 6, it is characterised in that: described suspension ring
(6) bottom is welded and fixed with axle part (7), and its fusion length L span is 120 ~ 150mm.
A kind of heat treatment pit-type furnace quenching frock assembly method the most according to claim 6, it is characterised in that: described axle zero
Part preheating temperature is 450 DEG C, time 2h ~ 4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912645.1A CN106319170B (en) | 2016-10-20 | 2016-10-20 | A kind of heat treatment pit-type furnace quenching tooling and its assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912645.1A CN106319170B (en) | 2016-10-20 | 2016-10-20 | A kind of heat treatment pit-type furnace quenching tooling and its assembly method |
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| CN106319170B CN106319170B (en) | 2018-08-03 |
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Cited By (3)
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| CN107619917A (en) * | 2017-09-28 | 2018-01-23 | 重庆市云阳曲轴有限责任公司 | A kind of connecting rod heating frock |
| CN110129533A (en) * | 2019-05-15 | 2019-08-16 | 南京中船绿洲机器有限公司 | A kind of heat treatment pit-type furnace built-in type quenching tooling and its assembly method |
| CN113699354A (en) * | 2021-09-27 | 2021-11-26 | 南京中船绿洲机器有限公司 | Heat treatment pit furnace single part built-in quenching tool and assembly method |
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| CN206244834U (en) * | 2016-10-20 | 2017-06-13 | 南京中船绿洲机器有限公司 | A kind of heat treatment pit-type furnace quenching frock |
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| WO2005073413A1 (en) * | 2004-01-30 | 2005-08-11 | Rodolfo Napoli | Pit furnace closing system |
| CN202465809U (en) * | 2012-01-19 | 2012-10-03 | 淄博元绪冶金机械有限公司 | Well type thermal-treatment lifting device |
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| CN110129533A (en) * | 2019-05-15 | 2019-08-16 | 南京中船绿洲机器有限公司 | A kind of heat treatment pit-type furnace built-in type quenching tooling and its assembly method |
| CN113699354A (en) * | 2021-09-27 | 2021-11-26 | 南京中船绿洲机器有限公司 | Heat treatment pit furnace single part built-in quenching tool and assembly method |
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| Publication number | Publication date |
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| CN106319170B (en) | 2018-08-03 |
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