CN104313293B - Compact chain vertical ring hot extrusion process - Google Patents
Compact chain vertical ring hot extrusion process Download PDFInfo
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- CN104313293B CN104313293B CN201410511273.2A CN201410511273A CN104313293B CN 104313293 B CN104313293 B CN 104313293B CN 201410511273 A CN201410511273 A CN 201410511273A CN 104313293 B CN104313293 B CN 104313293B
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- monocyclic
- hot extrusion
- ring
- heating
- heat
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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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
The invention discloses a compact chain vertical ring hot extrusion process and relates to the field of mechanical technologies. The compact chain vertical ring hot extrusion process comprises six processes: blanking, single ring hot weaving, single ring welding, medium frequency heating, extrusion forming and coping. According to the process, the manufacturing process adopts hot extrusion forming, material utilization is high, materials are not wasted basically, the trend of metal fiber of an extrusion vertical ring is in an axial annular shape and is consistent with the trend of the metal fiber of a flat ring, bearing capacities are ensured to be equal, and the mechanical property of extruded vertical ring product is improved. A raw material used in the process adopts 23MnNiMoCr54 and is high in the abrasive resistance and long in the service life. By strictly controlling various process parameters in the manufacturing process, the manufactured single ring product is high in strength of extension, yield strength and hardness, excellent in the performance and simple in the preparation process, and easily realizes large-scale automatic production.
Description
Technical field
The present invention relates to field of mechanical technique is and in particular to a kind of compact vertical chain ring hot extrusion technique.
Background technology
Compact chain be a kind of with round-link chain as flat ring, forging ring is a kind of new type mining chain of vertical ring, a flat grade separation
Misphase connects, and its vertical ring all has certain difference in geometry, mechanical property with round-link chain, and vertical ring majority manufacturer is using forging
Make technique (now execution standard is mt/t929-2004 mining high intensity compact chain).
From the point of view of establishing criteria, the sectional area of flat ring is circle, and whole circumference is identical everywhere, and vertical ring, compared with flat ring, has
Outer wide little, rectangle that straight-arm position section has 4 fillets, the sectional area in top arc portion is circle.
Hot extrusion technique be using with annulus identical material work out monocyclic, by monocyclic be heated to certain temperature deliver to crowded
On ring machine, in the presence of hydraulic coupling, by a monocyclic extrusion molding.But the stock utilization of the vertical ring technique of forging is low, holds
Load power difference is larger, and the vertical ring mechanical property producing is poor.
Content of the invention
Problem to be solved by this invention is to provide a kind of manufacturing process simple, excellent in mechanical performance, and stock utilization is high
Compact vertical chain ring hot extrusion technique.
To achieve these goals, the technical scheme that the present invention takes is a kind of compact vertical chain ring hot extrusion that provided
Technique, including following processing steps:
(1) blanking: using sawing machine, raw material is cut into the blank of certain length；
(2) heat volume is monocyclic: the blank after cutting in step (1) is sent into and carries out the monocyclic place of heat volume in full-automatic chain braider
Reason；
(3) welding is monocyclic: step (2) is put on butt welding machine through the blank that heat is compiled after monocyclic process, adjusting device is joined
Weld to monocyclic after number；
(4) heating in medium frequency: monocyclic the putting in Medium frequency induction diathermy apparatus after step (3) welding is heated,
Heating-up temperature is controlled to be 950-980 DEG C；
(5) extrusion molding: monocyclic after heating in step (4) is put in crowded ring machine, using hydraulic jack by plus
The monocyclic extrusion molding of heat；
(6) reconditioning: using file, reconditioning is carried out to monocyclic after extrusion molding in step (5), remove monocyclic blank surface
Burr, obtain smooth compact vertical chain ring product.
Preferably, the material of raw material used in described step (1) is 23mnnimocr54.
Preferably, carry out also needing after soldering to put it in heat-treatment furnace carrying out to monocyclic in described step (3)
Annealing, controls annealing temperature to be 485-525 DEG C.
Preferably, described heat-treatment furnace is specially a kind of box temperature automatically controlled resistance furnace.
Preferably, in described step (3) thus butt welding machine be full-automatic flash butt welder 502d.
Preferably, the heating in medium frequency in described step (4) is continuous work, controls heating beat to be that 4-6 ring is per minute.
Using technical scheme, because this kind of manufacturing process adopts hot extrusion molding, stock utilization is high, substantially
On not waste of materials, the metallic fiber of the vertical ring of extruding moves towards as axial ring-type, consistent with flat ring metallic fiber trend it is ensured that holding
Load power is identical, improves the mechanical property of the vertical ring product squeezing out, and the material that raw material used in this process adopts is
23mnnimocr54, wear-resisting intensity is high, long service life, by strict each technological parameter controlling in manufacture process, produces
The monocyclic product tensile strength going out, yield strength and hardness are all higher, excellent performance, and preparation process is simple, easily realize big rule
Mould automated production.
Specific embodiment
Embodiment 1:
(1) blanking: raw material is cut into the blank that length is 397mm using sawing machine；
(2) heat volume is monocyclic: the blank after cutting in step (1) is sent into and carries out the monocyclic place of heat volume in full-automatic chain braider
Reason；
(3) welding is monocyclic: step (2) is put into full-automatic flash butt welder 502d through the blank that heat is compiled after monocyclic process
On, weld to monocyclic after adjusting device parameter, put it into after welding in box temperature automatically controlled resistance furnace and annealed
Process, control annealing temperature to be 490 DEG C；
(4) heating in medium frequency: monocyclic the putting in Medium frequency induction diathermy apparatus after step (3) welding is heated,
Control heating-up temperature to be 950 DEG C, described heating in medium frequency is continuous work, control heating beat to be that 4 rings are per minute；
(5) extrusion molding: monocyclic after heating in step (4) is put in crowded ring machine, using hydraulic jack by plus
The monocyclic extrusion molding of heat；
(6) reconditioning: using file, reconditioning is carried out to monocyclic after extrusion molding in step (5), remove monocyclic blank surface
Burr, obtain smooth compact vertical chain ring product.
Embodiment 2: remaining is same as Example 1, difference is that in described step (3), in control, annealing temperature is
510℃；In described step (4), control heating-up temperature to be 960 DEG C, control heating beat to be that 5 rings are per minute.
Embodiment 3: remaining is same as Example 1, difference is that in described step (3), in control, annealing temperature is
520℃；In described step (4), control heating-up temperature to be 970 DEG C, control heating beat to be that 6 rings are per minute.
After process above step, take out monocyclic sample, to be measured:
| Sequence number | Annealing hardness/hb | Yield strength/mpa | Tensile strength/mpa | Stock utilization/% |
| Embodiment 1 | 226 | 1258 | 1340 | 99 |
| Embodiment 2 | 225 | 1259 | 1345 | 98 |
| Embodiment 3 | 229 | 1260 | 1342 | 100 |
From data above, the monocyclic sample produced, in 220 more than hb, hardness is high, yield strength for annealing hardness
With tensile strength respectively reached 1250 mpa and 1340 more than mpa, excellent in mechanical performance, and stock utilization also 97% with
On, cost-effective, and preparation process is simple.
Obviously the present invention implements and is not subject to the restrictions described above, as long as employing method of the present invention design and skill
The improvement of the various unsubstantialities that art scheme is carried out, or the not improved design by the present invention and technical scheme directly apply to it
Its occasion, all within protection scope of the present invention.
Claims (5)
1. a kind of compact vertical chain ring hot extrusion technique it is characterised in that: include following processing steps:
(1) blanking: using sawing machine, raw material is cut into the blank of certain length；
(2) heat volume is monocyclic: the blank after cutting in step (1) is sent into and carries out the heat monocyclic process of volume in full-automatic chain braider；
(3) welding is monocyclic: step (2) is put on butt welding machine through the blank that heat is compiled after monocyclic process, after adjusting device parameter
Weld to monocyclic, also need to put it in heat-treatment furnace after soldering to be made annealing treatment, control annealing temperature is
485-525℃；
(4) heating in medium frequency: monocyclic the putting in Medium frequency induction diathermy apparatus after step (3) welding is heated, controls
Heating-up temperature is 950-980 DEG C；
(5) extrusion molding: monocyclic after heating in step (4) is put in crowded ring machine, using hydraulic jack by heating
Monocyclic extrusion molding；
(6) reconditioning: using file to the monocyclic hair carrying out reconditioning, removing monocyclic blank surface after extrusion molding in step (5)
Thorn, obtains smooth compact vertical chain ring product.
2. a kind of compact vertical chain ring hot extrusion technique according to claim 1 it is characterised in that: institute in described step (1)
The material of raw material is 23mnnimocr54.
3. a kind of compact vertical chain ring hot extrusion technique according to claim 1 it is characterised in that: described heat-treatment furnace is concrete
For the box temperature automatically controlled resistance furnace of one kind.
4. a kind of compact vertical chain ring hot extrusion technique according to claim 1 it is characterised in that: in described step (3)
Butt welding machine is full-automatic flash butt welder 502d.
5. a kind of compact vertical chain ring hot extrusion technique according to claim 1 it is characterised in that: in described step (4)
Heating in medium frequency is continuous work, controls heating beat to be that 4-6 ring is per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511273.2A CN104313293B (en) | 2014-09-29 | 2014-09-29 | Compact chain vertical ring hot extrusion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511273.2A CN104313293B (en) | 2014-09-29 | 2014-09-29 | Compact chain vertical ring hot extrusion process |
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| Publication Number | Publication Date |
|---|---|
| CN104313293A CN104313293A (en) | 2015-01-28 |
| CN104313293B true CN104313293B (en) | 2017-01-18 |
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| CN201410511273.2A Active CN104313293B (en) | 2014-09-29 | 2014-09-29 | Compact chain vertical ring hot extrusion process |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513561B (en) * | 2016-08-31 | 2018-05-04 | 山东良达发兴圆环链有限公司 | A kind of production method of stainless steel round-link chain |
| CN106363354A (en) * | 2016-09-07 | 2017-02-01 | 王绪新 | Compact chain and production method thereof |
| CN109128702A (en) * | 2018-09-06 | 2019-01-04 | 鹤壁链条有限责任公司 | A kind of mining high-intensitive compact chain production technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1806992A (en) * | 2006-01-27 | 2006-07-26 | 王洪军 | Full automatic hydraulic flash butt welding method of metal circular ring chain and apparatus thereof |
| CN1962118A (en) * | 2006-11-29 | 2007-05-16 | 宁夏天地奔牛实业集团有限公司 | Method for manufacturing compact flat vertical chain ring |
| CN101342568A (en) * | 2008-08-16 | 2009-01-14 | 宁夏天地奔牛实业集团有限公司 | Method for manufacturing super-flat compact type chain vertical ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE396301B (en) * | 1976-12-30 | 1977-09-19 | Bulten Kanthal Ab | WAY TO TURN OR REORIENT THE LAST CHAIN LINK RESP A LINK OF A FREELY HANGING CHAIN JEMTING DEVICE FOR IMPLEMENTING THE KIT |
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2014
- 2014-09-29 CN CN201410511273.2A patent/CN104313293B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1806992A (en) * | 2006-01-27 | 2006-07-26 | 王洪军 | Full automatic hydraulic flash butt welding method of metal circular ring chain and apparatus thereof |
| CN1962118A (en) * | 2006-11-29 | 2007-05-16 | 宁夏天地奔牛实业集团有限公司 | Method for manufacturing compact flat vertical chain ring |
| CN101342568A (en) * | 2008-08-16 | 2009-01-14 | 宁夏天地奔牛实业集团有限公司 | Method for manufacturing super-flat compact type chain vertical ring |
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| CN104313293A (en) | 2015-01-28 |
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