CN108796200A - Hot rolling steel ball tempering process - Google Patents
Hot rolling steel ball tempering process Download PDFInfo
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- CN108796200A CN108796200A CN201810605323.1A CN201810605323A CN108796200A CN 108796200 A CN108796200 A CN 108796200A CN 201810605323 A CN201810605323 A CN 201810605323A CN 108796200 A CN108796200 A CN 108796200A
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- steel ball
- plate
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- tempering
- hot rolling
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of hot rolling steel ball tempering process of the present invention, the technique are：First uniformly tempering is evenly heated after cooling；When uniformly cooling, push plate item follows driving chain to move, so that push plate item pushes the steel ball on cooling platform constantly to be rolled during forward, so that heat dissipation is more uniformly distributed；Steel ball on cooling platform tumbles after being fallen on guide plate when being pushed to discharge end by push plate item to the upper link plate of transporting chain plate；When being evenly heated tempering, transporting chain plate drives steel ball to enter furnace body, burner heats the indoor gas that burns, gas after heating is blown into via wind turbine in inner can, then evenly distribute uniformly to be blown to afterwards on the steel ball above transporting chain plate upper link plate by upper air uniform plate and carry out tempering heating, subsequent gas by lower air uniform plate enter return airway rising be again introduced into burning in recycled.A kind of hot rolling steel ball tempering process of the present invention, effectively raises production efficiency and steel ball quality.
Description
Technical field
The present invention relates to a kind of tempering process, more particularly, to the tempering process employed in a kind of production of hot rolling steel ball,
Belong to hot-rolled steel ball technical field.
Background technology
Currently, for hot rolling steel ball, the residual stress to eliminate steel ball needs to carry out tempering process, such as " Wuxi City scud
One kind " heat treatment of long-life bearing steel ball that the China Patent No. of Qiu Ye Co., Ltds " application is CN201610386721.X
In technique " steel ball performance is improved by increasing tempering process；It needs first to carry out cooling down operation to steel ball before tempering；But it is existing
There is the cooling efficiency of cooling technique relatively low, the face heat dissipation effect that steel ball is contacted with transmission belt when especially cooling is poor, therefore
Steel ball metal inside institutional framework after cooling is influenced, it is relatively low to directly result in steel ball intensity after cooling；Meanwhile traditional steel
Ball tempering furnace heating temperature is uneven, and the regional temperature close from heating source is high, conversely, then temperature is low for distal end, non-uniform temperature
Seriously affect the tempering property of steel ball；Therefore, there is an urgent need for a kind of tempering process that can improve steel ball quality.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of hot rolling steel ball tempering process, effectively raise
Production efficiency and steel ball quality.
The object of the present invention is achieved like this：
In a kind of hot rolling steel ball tempering process, the technique is：
First uniformly tempering is evenly heated after cooling；
Uniformly cooling to use a kind of hot rolling ball milling steel ball homogeneous cooling apparatus, described device includes to be installed in rack
The both sides of cooling platform, the cooling platform are provided with two driving chains being mutually parallel, two transmissions along its length
More push plate items are provided between chain, and push plate item is located at the top of cooling platform；
It is evenly heated tempering and uses a kind of full-automatic tempering furnace of hot rolling steel ball, the tempering furnace includes multiple mutual cascades
Furnace body unit, the furnace body unit includes the furnace body being mounted on the base, and inner can, the stove are provided in the furnace body
Return airway, the top inner wall and inner can of the furnace body are constituted between the front and rear inner side walls of body and the front and back lateral wall of inner can
Top exterior walls between constitute combustion chamber, worn on the side wall of the furnace body and be connected to burner, the burner is inserted in combustion chamber
It is interior, wind turbine is installed, the bottom of inner can is equipped with lower air uniform plate, and the inner can is equipped with even wind at the top of inner can
Be both provided with multiple ventilation holes on plate, the upper air uniform plate and lower air uniform plate, the upper link plate of transporting chain plate be located at upper air uniform plate and
Between lower air uniform plate, the lower carrier bar of transporting chain plate is between lower air uniform plate and pedestal；
When uniformly cooling, push plate item follows driving chain to move, so that push plate item pushes the steel ball on cooling platform
It is constantly rolled during forward, so that heat dissipation is more uniformly distributed；Steel ball on cooling platform is pushed to out by push plate item
Expect to tumble to the upper link plate of transporting chain plate after falling on guide plate when end；
When being evenly heated tempering, transporting chain plate drives steel ball to enter furnace body, and burner adds the indoor gas that burns
Heat, the gas after heating are blown into via wind turbine in inner can, are uniformly blown in defeated after then being evenly distributed by upper air uniform plate
It send and carries out tempering heating on the steel ball above carrier bar upper link plate, subsequent gas enters return airway by lower air uniform plate and rises again
It is recycled in into burning.
A kind of hot rolling steel ball tempering process of the present invention, the gap between the push plate item and cooling platform are less than the straight of steel ball
Diameter；The top of the cooling platform is provided with more cooling fans along its length；When steel ball is pushed by push plate item and roll
In forward process, the cooling wind acceleration that cooling fan is blown out vertically downward cools down steel ball, and steel ball rolling
During the whole heat wind that is quickly cooled is blown away.
A kind of hot rolling steel ball tempering process of the present invention has wrapped insulating layer on the outer wall of the furnace body.
A kind of hot rolling steel ball tempering process of the present invention is equipped with temperature sensor in the inner can.
Compared with prior art, the beneficial effects of the invention are as follows：
By push plate item steel ball is constantly rolled during transmitting cooling in present invention process, it is a certain to avoid
Face contacts shelving plane for a long time and influences heat dissipation effect；Meanwhile so that heat dissipation is more uniformly distributed and fast, improves scattered after rolling
The thermal efficiency reduces the heat dissipation time, is conducive to the quality for improving steel ball；The unit of tempering furnace structure in present invention process simultaneously
Tandem type structure, which is convenient for being cascaded according to actual demand, to be used, and to be blown to by even air holes plate more equal in the hot wind on steel plate
It is even, to improve tempering quality；And and temperature uniformity energy saving by hot air circulation is more preferably；And conveyer belt type transmission knot
Structure ensure that the efficiency of large-scale industrial production.
Description of the drawings
Fig. 1 is the local overlooking of the hot rolling ball milling steel ball homogeneous cooling apparatus in a kind of hot rolling steel ball tempering process of the present invention
Figure.
Fig. 2 is the partial elevational of the hot rolling ball milling steel ball homogeneous cooling apparatus in a kind of hot rolling steel ball tempering process of the present invention
Figure.
Fig. 3 is the schematic cross-section of the full-automatic tempering furnace of hot rolling steel ball in a kind of hot rolling steel ball tempering process of the present invention.
Fig. 4 is the structural schematic diagram of the full-automatic tempering furnace of hot rolling steel ball in a kind of hot rolling steel ball tempering process of the present invention
(partial sectional view).
Wherein：
Rack 101, cooling platform 102, driving chain 103, push plate item 104
Transporting chain plate 201；
Furnace body 1, inner can 2, wind turbine 3, burner 4, upper air uniform plate 5, lower air uniform plate 6, temperature sensor 7.
Specific implementation mode
Referring to Fig. 1~4, in a kind of hot rolling steel ball tempering process of the present invention, the technique is：
First uniformly tempering is evenly heated after cooling；
Uniformly cooling to use a kind of hot rolling ball milling steel ball homogeneous cooling apparatus, described device includes to be installed on rack 101
On cooling platform 102, the both sides of the cooling platform 102 are provided with two driving chains being mutually parallel along its length
103, more push plate items 104 are provided between two driving chains 103, and push plate item 104 is located at the top of cooling platform 102；
It is evenly heated tempering and uses a kind of full-automatic tempering furnace of hot rolling steel ball, the tempering furnace includes multiple mutual cascades
Furnace body unit, the furnace body unit includes the furnace body 1 being mounted on the base, and inner can 2, institute are provided in the furnace body 1
It states and constitutes return airway, the top inner wall of the furnace body 1 between the front and rear inner side walls of furnace body 1 and the front and back lateral wall of inner can 2
Combustion chamber is constituted between the top exterior walls of inner can 2, is worn on the side wall of the furnace body 1 and is connected to burner 4, the burner 4
It is inserted in combustion chamber, the top of inner can 2 is equipped with wind turbine 3, and the bottom of inner can 2 is equipped with lower air uniform plate 6, the inner cover
Shell 2 is equipped with air uniform plate 5, and multiple ventilation holes are both provided on the upper air uniform plate 5 and lower air uniform plate 6, transporting chain plate 201
Upper link plate between upper air uniform plate 5 and lower air uniform plate 6, the lower carrier bar of transporting chain plate 201 be located at lower air uniform plate 6 and pedestal it
Between；
When uniformly cooling, push plate item 104 follows driving chain 103 to move, so that push plate item 104 pushes cooling platform
Steel ball on 102 constantly rolls during forward, so that heat dissipation is more uniformly distributed；The steel ball of cooling platform 102 is pushed away
Lath 104 is tumbled after being fallen to when being pushed to discharge end on guide plate to the upper link plate of transporting chain plate 201；
When being evenly heated tempering, transporting chain plate 201 drives steel ball to enter furnace body 1, burner 4 to burn indoor gas into
Row heating, the gas after heating are blown into inner can 2 via wind turbine 3, are uniformly blown after then being evenly distributed by upper air uniform plate 5
As for tempering heating is carried out on the steel ball above 201 upper link plate of transporting chain plate, subsequent gas enters return air wind by lower air uniform plate 6
Road rising, which is again introduced into burning, to be recycled, and the utilization rate to improve the energy reduces energy consumption；
Further, the gap between the push plate item 104 and cooling platform 102 is less than the diameter of steel ball；The cooling
The top of platform 102 is provided with more cooling fans and (concretely, is provided with multiple gantry in rack 101 along its length
Frame, the air outlet of the cooling fan installed on portal frame is towards cooling platform 102；To further increase heat dissipation performance, shorten
It radiates the time)；When the cooling that steel ball is by the promotion of push plate item 104 and during rolling moves ahead, and cooling fan is blown out vertically downward
Wind acceleration cools down steel ball, and enable the quickly cooled wind of whole heat during steel ball rolling
It walks；
Further, insulating layer has been wrapped on the outer wall of the furnace body 1；
Further, the density of the ventilation hole on the lower air uniform plate 6 is successively increased by intermediate both sides forwards, backwards, this be by
In front and back side since close to return airway, pressure is big, slower according to Bernoulli Jacob's gas flow equation pressure general goal flow velocity, therefore need
Increase ventilation hole density and ensures that the return-air amount of entire lower air uniform plate 6 is consistent；
Further, temperature sensor is installed in the inner can 2, for being monitored to temperature；
In addition：It should be noted that above-mentioned specific implementation mode is only a prioritization scheme of this patent, the skill of this field
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent..
Claims (4)
1. a kind of hot rolling steel ball tempering process, it is characterised in that：The technique is：
First uniformly tempering is evenly heated after cooling；
Uniformly cooling to use a kind of hot rolling ball milling steel ball homogeneous cooling apparatus, described device includes to be installed in rack (101)
Cooling platform (102), the both sides of the cooling platform (102) are provided with two transmission chains being mutually parallel along its length
Item (103) is provided with more push plate items (104) between two driving chains (103), and push plate item (104) is located at cooling platform
(102) top；
It includes multiple mutually cascade stoves to be evenly heated tempering and use a kind of full-automatic tempering furnace of hot rolling steel ball, the tempering furnace
Body unit, the furnace body unit include the furnace body (1) being mounted on the base, and inner can (2) is provided in the furnace body (1),
Return airway is constituted between the front and rear inner side walls and the front and back lateral wall of inner can (2) of the furnace body (1), the furnace body (1)
Combustion chamber is constituted between top inner wall and the top exterior walls of inner can (2), is worn on the side wall of the furnace body (1) and is connected to burner
(4), the burner (4) is inserted in combustion chamber, and wind turbine (3), the bottom of inner can (2) are equipped at the top of inner can (2)
Lower air uniform plate (6) is installed, the inner can (2) is equipped with air uniform plate (5), the upper air uniform plate (5) and lower air uniform plate (6)
On be both provided with multiple ventilation holes, the upper link plate of transporting chain plate (201) is defeated between upper air uniform plate (5) and lower air uniform plate (6)
The lower carrier bar of carrier bar (201) is sent to be located at lower air uniform plate (6) between pedestal；
When uniformly cooling, push plate item (104) follows driving chain (103) mobile, so that push plate item (104) pushes cooling flat
Steel ball on platform (102) constantly rolls during forward, so that heat dissipation is more uniformly distributed；On cooling platform (102)
Steel ball is tumbled after being fallen on guide plate when being pushed to discharge end by push plate item (104) to the upper link plate of transporting chain plate (201)；
When being evenly heated tempering, transporting chain plate (201) drives steel ball to enter furnace body (1), and burner (4) is to the indoor gas that burns
It is heated, the gas after heating is blown into via wind turbine (3) in inner can (2), after then being evenly distributed by upper air uniform plate (5)
Uniform be blown on the steel ball above transporting chain plate (201) upper link plate carries out tempering heating, and subsequent gas passes through lower air uniform plate
(6) it is again introduced into burning and is recycled into return airway rising.
2. a kind of hot rolling steel ball tempering process as described in claim 1, it is characterised in that：The push plate item (104) is put down with cooling
Gap between platform (102) is less than the diameter of steel ball；The top of the cooling platform (102) is provided with more along its length
Cooling fan；When the cooling that steel ball is by push plate item (104) promotion and during rolling moves ahead, and cooling fan is blown out vertically downward
Wind acceleration cools down steel ball, and enable the quickly cooled wind of whole heat during steel ball rolling
It walks.
3. a kind of hot rolling steel ball tempering process as described in claim 1, it is characterised in that：It is wrapped on the outer wall of the furnace body (1)
There is insulating layer.
4. a kind of hot rolling steel ball tempering process as described in claim 1, it is characterised in that：Temperature is installed in the inner can (2)
Spend sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605323.1A CN108796200A (en) | 2018-06-13 | 2018-06-13 | Hot rolling steel ball tempering process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605323.1A CN108796200A (en) | 2018-06-13 | 2018-06-13 | Hot rolling steel ball tempering process |
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| Publication Number | Publication Date |
|---|---|
| CN108796200A true CN108796200A (en) | 2018-11-13 |
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ID=64087088
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810605323.1A Pending CN108796200A (en) | 2018-06-13 | 2018-06-13 | Hot rolling steel ball tempering process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042216A (en) * | 2019-03-27 | 2019-07-23 | 江阴市华正金属科技有限公司 | The ultralow abrasion hot rolling ball milling steel ball tempering furnace thermometric technique of specification in high-carbon type |
Citations (6)
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|---|---|---|---|---|
| US5242156A (en) * | 1992-04-03 | 1993-09-07 | Can-Eng Holdings, Ltd. | Dual belt furnace |
| CN2372327Y (en) * | 1999-05-11 | 2000-04-05 | 淄博中元工程有限公司 | Fuel (gas) tempering equipment for plate spring |
| CN202849501U (en) * | 2012-10-19 | 2013-04-03 | 湖北中冶窑炉有限公司 | Crawler-type aging oven for heat treatment of wear-resistant steel balls |
| CN103773939A (en) * | 2012-10-19 | 2014-05-07 | 湖北中冶窑炉有限公司 | High-efficiency wearable steel ball aging oven |
| CN204803358U (en) * | 2015-07-20 | 2015-11-25 | 江阴东邦钢球机械有限公司 | Secondary translation formula quenching mechanism |
| CN107893158A (en) * | 2017-12-14 | 2018-04-10 | 苏州中门子工业炉科技有限公司 | A kind of solid solution furnace of feed inlet and outlet band sealing gas curtain |
-
2018
- 2018-06-13 CN CN201810605323.1A patent/CN108796200A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242156A (en) * | 1992-04-03 | 1993-09-07 | Can-Eng Holdings, Ltd. | Dual belt furnace |
| CN2372327Y (en) * | 1999-05-11 | 2000-04-05 | 淄博中元工程有限公司 | Fuel (gas) tempering equipment for plate spring |
| CN202849501U (en) * | 2012-10-19 | 2013-04-03 | 湖北中冶窑炉有限公司 | Crawler-type aging oven for heat treatment of wear-resistant steel balls |
| CN103773939A (en) * | 2012-10-19 | 2014-05-07 | 湖北中冶窑炉有限公司 | High-efficiency wearable steel ball aging oven |
| CN204803358U (en) * | 2015-07-20 | 2015-11-25 | 江阴东邦钢球机械有限公司 | Secondary translation formula quenching mechanism |
| CN107893158A (en) * | 2017-12-14 | 2018-04-10 | 苏州中门子工业炉科技有限公司 | A kind of solid solution furnace of feed inlet and outlet band sealing gas curtain |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042216A (en) * | 2019-03-27 | 2019-07-23 | 江阴市华正金属科技有限公司 | The ultralow abrasion hot rolling ball milling steel ball tempering furnace thermometric technique of specification in high-carbon type |
| CN110042216B (en) * | 2019-03-27 | 2020-08-11 | 江阴市华正金属科技有限公司 | Temperature measurement technology of high carbon type medium size ultra low wear hot rolling ball mill steel ball tempering furnace |
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Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |