CN105861786B - The method that iron filings make bearing material - Google Patents
The method that iron filings make bearing material Download PDFInfo
- Publication number
- CN105861786B CN105861786B CN201610384289.0A CN201610384289A CN105861786B CN 105861786 B CN105861786 B CN 105861786B CN 201610384289 A CN201610384289 A CN 201610384289A CN 105861786 B CN105861786 B CN 105861786B
- Authority
- CN
- China
- Prior art keywords
- seamless steel
- steel pipe
- iron filings
- heat
- iron
- Prior art date
- 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 - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/119—Refining the metal by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
Abstract
The invention discloses a kind of method that iron filings make bearing material, comprise the following steps, Step 1: iron filings collection and preheating, Step 2: melting, Step 3: casting crystallization trombone slide, Step 4: seamless steel pipe is incubated, Step 5: seamless steel pipe is cut, seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting.The relatively former technique of present device investment is substantially reduced, enterprise is conducive to save production cost, this method major ingredient is using leftover bits and pieces such as the waste iron filings produced in machining, turn waste into wealth, the problem of not only solving these waste entrainment environment, these waste materials can be made full use of again simultaneously, the recycling of scrap iron material resource is may advantageously facilitate.
Description
Technical field
The present invention relates to technical field of bearing processing, the method that specifically a kind of iron filings make bearing material.
Background technology
The application of present bearing is more and more extensive, and market yield is incrementally increased, and traditional processing technology is：Strand → roll compacting
→ perforation → Continuous Seamless Tube Mill → essence is pulled out → subtracts the processes such as sizing, and it is that this method is very crucial that the perforation of solid billet rod is made into hollow ingot
Process.Because perforation process spends huge fund, it is necessary to build heating furnace, upper punch and buy other corollary equipments, this is not only
The investment of equipment is added, but also has elongated technological process, production cost is further increased.In order to improve traditional production
Technique, people have done many researchs and exploration, such as centrifugal casting, arc centreless continuous metal cast process, cover die strand method, but these sides
Method all generally existings different degrees of defect.
Centrifugal casting, i.e., cast in molten steel in centrifuge, is rotated and cooled down by centrifuge, obtains hollow tube,
Though the method can obtain the preferable hollow tube of quality, its technique interruption, productivity ratio is relatively low, it is impossible to carry out volume production, and
Tube surfaces are relatively difficult to cleaning, are not suitable for extensive use,
For another example glass tube down-drawing, in order to obtain longer tubing, the equipment of hot-mold continuous cast method will take bigger space, and
Expect that hollow tube will add a stationary core rod in a crystallizer, this method is very high to the performance requirement of plug, plug
Must there are heat resistance, wearability, long lifespan and certain rigidity requirement, therefore add the difficulty of processing, and molten steel crystal
It can be firmly attached to during solidification on plug, increase the resistance of pipe motion, be easily caused pipe and be pulled off, plug needs water flowing
Cooling, manufacture and maintenance to equipment bring very big trouble, and the pipe uneven thickness produced, the inner side of pipe
Wall is also rougher, causes to deal with cumbersome, the quality of influence product.
The content of the invention
It is an object of the present invention to provide a kind of method that iron filings make bearing material, comprises the following steps：
Step 1: iron filings collection and preheating
By the iron filings produced in production give up part, end to end etc. iron filings material collect, the heat smoke produced using electric furnace is directly and iron
Crumble is contacted, and iron filings material is preheated, constantly iron filings material is stirred in warm, enters environmental protection equipment using complete heat smoke
Do dust removal process；
Step 2: melting
Melting processing is carried out to the iron filings material after preheating using VD refining furnaces, filter is placed during cast, and extend horizontal pour
Road tip length, with Normal practice, the molten iron slag after melting and sulphur phosphorus harmful element is removed, and drop the oxygen content of molten iron
To 10 × below 10-6；
Step 3: casting crystallization trombone slide
Molten iron after melting, pours into insulation ladle, external U-type groove, into crystallizer, and crystallizer joint is craned one head, with same
Variable-frequency motor pull-up is walked, stops frequent short steps method using stopping -- drawing -- and is pulled up, crystallizer water inlet and delivery port are by heat band
Walk, condense molten iron；Cast tube uses vertical strain method, seamless steel pipe is made using double track alternating drawing, hot pipe insulating delays to swash
It is cold, it is to avoid during the generation of seamless pipe thermal stress cracking, seamless steel pipe drawing, layering condensation is carried out, middle part is noted all the time
Enter molten iron and carry out feeding, tapping hole seamless pipe temperature is installed above 990-1010 DEG C, crystallizer and two sets are installed on brandreth, brandreth
Handle system, handle system snatch seamless steel pipe after reaching a certain height, is transported to from left to right centered on crystallizer and managed, alternately
Seamless steel pipe is delivered into subsequent processing processing；
Step 4: seamless steel pipe is incubated
Heat-insulation system is processed using the material of 1000 DEG C of heatproof, and temperature-resistant material is processed into tubular is made heat-preservation cylinder,
Heat-preservation cylinder is two, and two heat-preservation cylinders can be moved with seamless steel pipe, and seamless steel is sent into heat-preservation cylinder, seamless steel pipe blank
Soaking time is that every millimeter of wall thickness is incubated 2~3 minutes；
Step 5: seamless steel pipe is cut
Seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting；
Preferably, the molten iron in the step 3 after melting is not less than 1450 DEG C.
Preferably, in the step 3, tapping hole seamless pipe temperature is 1000 DEG C.
Beneficial effects of the present invention：
1st, the relatively former technique of equipment investment is substantially reduced（Former technique needs three related factories workshops, more than ten procedures）,
And this method step is simply easily operated, substantial amounts of man power and material is saved, suitable coal, electric energy can be also saved, according to survey
Calculate, per ton to save more than 300 kilograms of coal, such as widely used above-mentioned technique can produce more than 1,000,000,000 yuan of benefit every year.
2nd, this method major ingredient is turned waste into wealth using leftover bits and pieces such as the waste iron filings produced in machining, is not only solved this
The problem of a little waste entrainment environment, while these waste materials can be made full use of again, it may advantageously facilitate the recycling of scrap iron material resource.
3rd, this method because cooling velocity it is fast, therefore during crystal grain refinement, seamless steel pipe drawing, carry out layering condensation, it is middle
Position injects molten iron and carries out feeding all the time, can so prevent seamless steel pipe from occurring the defects such as shrinkage porosite, deviation, micropore, fully ensure that
The quality of product.
Embodiment
Embodiment 1
A kind of method that iron filings make bearing material, comprises the following steps：
Step 1: iron filings collection and preheating
By the iron filings produced in production give up part, end to end etc. iron filings material collect, the heat smoke produced using electric furnace is directly and iron
Crumble is contacted, and iron filings material is preheated, constantly iron filings material is stirred in warm, enters environmental protection equipment using complete heat smoke
Do dust removal process；
Step 2: melting
Melting processing is carried out to the iron filings material after preheating using VD refining furnaces, filter is placed during cast, and extend horizontal pour
Road tip length, with Normal practice, the molten iron slag after melting and sulphur phosphorus harmful element is removed, and drop the oxygen content of molten iron
To 10 × below 10-6；
Step 3: casting crystallization trombone slide
Molten iron after melting, pours into insulation ladle, external U-type groove, into crystallizer, and crystallizer joint is craned one head, with same
Variable-frequency motor pull-up is walked, stops frequent short steps method using stopping -- drawing -- and is pulled up, crystallizer water inlet and delivery port are by heat band
Walk, condense molten iron；Cast tube uses vertical strain method, seamless steel pipe is made using double track alternating drawing, hot pipe insulating delays to swash
It is cold, it is to avoid during the generation of seamless pipe thermal stress cracking, seamless steel pipe drawing, layering condensation is carried out, middle part is noted all the time
Enter molten iron and carry out feeding, tapping hole seamless pipe temperature is installed above 990 DEG C, crystallizer installs two sets of liftings on brandreth, brandreth
System, handle system snatch seamless steel pipe after reaching a certain height, is transported to from left to right centered on crystallizer and managed, alternately by nothing
Stitch steel pipe and deliver subsequent processing processing；
Step 4: seamless steel pipe is incubated
Heat-insulation system is processed using the material of 1000 DEG C of heatproof, and temperature-resistant material is processed into tubular is made heat-preservation cylinder,
Heat-preservation cylinder is two, and two heat-preservation cylinders can be moved with seamless steel pipe, and seamless steel is sent into heat-preservation cylinder, seamless steel pipe blank
Soaking time is that every millimeter of wall thickness is incubated 2~3 minutes；
Step 5: seamless steel pipe is cut
Seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting；
Molten iron in the step 3 after melting is not less than 1450 DEG C.
Embodiment 2
Step 1: iron filings collection and preheating
By the iron filings produced in production give up part, end to end etc. iron filings material collect, the heat smoke produced using electric furnace is directly and iron
Crumble is contacted, and iron filings material is preheated, constantly iron filings material is stirred in warm, enters environmental protection equipment using complete heat smoke
Do dust removal process；
Step 2: melting
Melting processing is carried out to the iron filings material after preheating using VD refining furnaces, filter is placed during cast, and extend horizontal pour
Road tip length, with Normal practice, the molten iron slag after melting and sulphur phosphorus harmful element is removed, and drop the oxygen content of molten iron
To 10 × below 10-6；
Step 3: casting crystallization trombone slide
Molten iron after melting, pours into insulation ladle, external U-type groove, into crystallizer, and crystallizer joint is craned one head, with same
Variable-frequency motor pull-up is walked, stops frequent short steps method using stopping -- drawing -- and is pulled up, crystallizer water inlet and delivery port are by heat band
Walk, condense molten iron；Cast tube uses vertical strain method, seamless steel pipe is made using double track alternating drawing, hot pipe insulating delays to swash
It is cold, it is to avoid during the generation of seamless pipe thermal stress cracking, seamless steel pipe drawing, layering condensation is carried out, middle part is noted all the time
Enter molten iron and carry out feeding, tapping hole seamless pipe temperature is installed above 1000 DEG C, crystallizer installs two sets of liftings on brandreth, brandreth
System, handle system snatch seamless steel pipe after reaching a certain height, is transported to from left to right centered on crystallizer and managed, alternately by nothing
Stitch steel pipe and deliver subsequent processing processing；
Step 4: seamless steel pipe is incubated
Heat-insulation system is processed using the material of 1000 DEG C of heatproof, and temperature-resistant material is processed into tubular is made heat-preservation cylinder,
Heat-preservation cylinder is two, and two heat-preservation cylinders can be moved with seamless steel pipe, and seamless steel is sent into heat-preservation cylinder, seamless steel pipe blank
Soaking time is that every millimeter of wall thickness is incubated 2~3 minutes；
Step 5: seamless steel pipe is cut
Seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting；
Molten iron in the step 3 after melting is not less than 1450 DEG C.
Embodiment 3
Step 1: iron filings collection and preheating
By the iron filings produced in production give up part, end to end etc. iron filings material collect, the heat smoke produced using electric furnace is directly and iron
Crumble is contacted, and iron filings material is preheated, constantly iron filings material is stirred in warm, enters environmental protection equipment using complete heat smoke
Do dust removal process；
Step 2: melting
Melting processing is carried out to the iron filings material after preheating using VD refining furnaces, filter is placed during cast, and extend horizontal pour
Road tip length, with Normal practice, the molten iron slag after melting and sulphur phosphorus harmful element is removed, and drop the oxygen content of molten iron
To 10 × below 10-6；
Step 3: casting crystallization trombone slide
Molten iron after melting, pours into insulation ladle, external U-type groove, into crystallizer, and crystallizer joint is craned one head, with same
Variable-frequency motor pull-up is walked, stops frequent short steps method using stopping -- drawing -- and is pulled up, crystallizer water inlet and delivery port are by heat band
Walk, condense molten iron；Cast tube uses vertical strain method, seamless steel pipe is made using double track alternating drawing, hot pipe insulating delays to swash
It is cold, it is to avoid during the generation of seamless pipe thermal stress cracking, seamless steel pipe drawing, layering condensation is carried out, middle part is noted all the time
Enter molten iron and carry out feeding, tapping hole seamless pipe temperature is installed above 990-1010 DEG C, crystallizer and two sets are installed on brandreth, brandreth
Handle system, handle system snatch seamless steel pipe after reaching a certain height, is transported to from left to right centered on crystallizer and managed, alternately
Seamless steel pipe is delivered into subsequent processing processing；
Step 4: seamless steel pipe is incubated
Heat-insulation system is processed using the material of 1000 DEG C of heatproof, and temperature-resistant material is processed into tubular is made heat-preservation cylinder,
Heat-preservation cylinder is two, and two heat-preservation cylinders can be moved with seamless steel pipe, and seamless steel is sent into heat-preservation cylinder, seamless steel pipe blank
Soaking time is that every millimeter of wall thickness is incubated 2~3 minutes；
Step 5: seamless steel pipe is cut
Seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting；
Preferably, the molten iron in the step 3 after melting is not less than 1450 DEG C.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, made equivalent variations and modification on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should be belonged to.
Claims (3)
1. the method that iron filings make bearing material, it is characterised in that comprise the following steps：
Step 1: iron filings collection and preheating
By the useless part of the iron filings produced in production, crumble is collected end to end, and the heat smoke produced using electric furnace is directly contacted with iron filings material,
Iron filings material is preheated, constantly iron filings material is stirred in warm, is done using complete heat smoke into environmental protection equipment at dedusting
Reason；
Step 2: melting
Melting processing is carried out to the iron filings material after preheating using VD refining furnaces, filter is placed during cast, and extend cross gate end
Length is held, the molten iron slag after melting and sulphur phosphorus harmful element are removed, and the oxygen content of molten iron is down to 10 × 10-6Below；
Step 3: casting crystallization trombone slide
Molten iron after melting, pours into insulation ladle, external U-type groove, into crystallizer, and crystallizer joint is craned one head, is become with synchronous
Frequency motor is pulled up, and is stopped frequent short steps method using stopping -- drawing -- and is pulled up, crystallizer water inlet and delivery port take away heat, make
Molten iron condenses；Cast tube uses vertical strain method, seamless steel pipe is made using double track alternating drawing, hot pipe insulating delays Quench, keeps away
Exempt from during the generation of seamless pipe thermal stress cracking, seamless steel pipe drawing, carry out layering condensation, molten iron is injected in middle part all the time
Feeding is carried out, tapping hole seamless pipe temperature is installed above 990-1010 DEG C, crystallizer installs two sets of lifting systems on brandreth, brandreth
System, handle system snatch seamless steel pipe after reaching a certain height, is transported to from left to right centered on crystallizer and managed, alternating will be seamless
Steel pipe delivers subsequent processing processing；
Step 4: seamless steel pipe is incubated
Heat-insulation system is processed using the material of 1000 DEG C of heatproof, and temperature-resistant material is processed into tubular is made heat-preservation cylinder, insulation
Cylinder is two, and two heat-preservation cylinders can be moved with seamless steel pipe, seamless steel be sent into heat-preservation cylinder, the insulation of seamless steel pipe blank
Time is that every millimeter of wall thickness is incubated 2~3 minutes；
Step 5: seamless steel pipe is cut
Seamless steel pipe is removed after heat-preservation cylinder, and into Length-fixing cutting process, bearing material is made after cutting.
2. the method that iron filings as claimed in claim 1 make bearing material, it is characterised in that：In the step 3 after melting
Molten iron is not less than 1450 DEG C.
3. the method that iron filings as claimed in claim 1 make bearing material, it is characterised in that：In the step 3, tapping hole
Seamless pipe temperature is 1000 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384289.0A CN105861786B (en) | 2016-06-02 | 2016-06-02 | The method that iron filings make bearing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384289.0A CN105861786B (en) | 2016-06-02 | 2016-06-02 | The method that iron filings make bearing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105861786A CN105861786A (en) | 2016-08-17 |
| CN105861786B true CN105861786B (en) | 2017-09-12 |
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ID=56676752
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610384289.0A Expired - Fee Related CN105861786B (en) | 2016-06-02 | 2016-06-02 | The method that iron filings make bearing material |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178492A (en) * | 2021-12-13 | 2022-03-15 | 昆明理工大学 | Method for recycling waste materials in continuous casting tundish |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087952A (en) * | 1993-12-02 | 1994-06-15 | 吴君旺 | Directly pouring casting technique using melted waste iron filings |
| CN101660098A (en) * | 2009-09-16 | 2010-03-03 | 天津钢管集团股份有限公司 | Hot-rolling seamless steel pipe applicable to high temperature of 580-620 DEG C and high pressure of 24-30MPa and production method thereof |
| CN102925818A (en) * | 2012-11-23 | 2013-02-13 | 中天钢铁集团有限公司 | Corrosion-resistant and high-temperature resistant bearing steel and production process thereof |
-
2016
- 2016-06-02 CN CN201610384289.0A patent/CN105861786B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087952A (en) * | 1993-12-02 | 1994-06-15 | 吴君旺 | Directly pouring casting technique using melted waste iron filings |
| CN101660098A (en) * | 2009-09-16 | 2010-03-03 | 天津钢管集团股份有限公司 | Hot-rolling seamless steel pipe applicable to high temperature of 580-620 DEG C and high pressure of 24-30MPa and production method thereof |
| CN102925818A (en) * | 2012-11-23 | 2013-02-13 | 中天钢铁集团有限公司 | Corrosion-resistant and high-temperature resistant bearing steel and production process thereof |
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| Publication number | Publication date |
|---|---|
| CN105861786A (en) | 2016-08-17 |
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Granted publication date: 20170912 Termination date: 20210602 |