CN103586631A - Process for manufacturing coating wheels of coating units of production lines for copper alloy through ground wires - Google Patents

Process for manufacturing coating wheels of coating units of production lines for copper alloy through ground wires Download PDF

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Publication number
CN103586631A
CN103586631A CN201310489894.0A CN201310489894A CN103586631A CN 103586631 A CN103586631 A CN 103586631A CN 201310489894 A CN201310489894 A CN 201310489894A CN 103586631 A CN103586631 A CN 103586631A
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China
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blanks
coating
coating wheels
coated
wheels
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CN201310489894.0A
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Chinese (zh)
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CN103586631B (en
Inventor
时千峰
徐魏魏
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ZHONGTIAN INTELLIGENT EQUIPMENT Co.,Ltd.
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NANTONG YUPIN COMMUNICATION TECHNOLOGY CO LTD
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/002Heat treatment of ferrous alloys containing Cr
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24Nitriding
    • C23C8/26Nitriding of ferrous surfaces

Abstract

The invention relates to a process for manufacturing coating wheels of coating units of production lines for copper alloy through ground wires. The process is characterized by comprising selecting round steel made of W18Cr4V materials when blanks are manufactured, performing hot forging, upsetting and forming on the blanks, annealing the blanks for 2 hours at the temperature ranging from 860 DEG C to 880 DEG C, preserving heat of the blanks for 2 hours at the temperature ranging from 730 DEG C to 750 DEG C, and performing furnace cooling on the blanks until the temperatures of the blanks reach the room temperature; performing quenching treatment on the blanks after rough machining is carried out on the blanks, in other words, heating the coating wheels until the temperatures of the coating wheels reach 127+/-10 DEG C, preserving heat of the coating wheels for 30 minutes, then immersing the coating wheels in quenching oil to quickly cool the coating wheels and tempering the coating wheels by three times at the temperature ranging from 550 DEG C to 570 DEG C; nitriding the coating wheels, in other words, nitriding the coating wheels for 8 hours at the temperature of 560 DEG C, discharging the coating wheels from a furnace and then cooling the coating wheels by oil. The depths of nitrided layers of the coating wheels range from 0.13mm to 0.18mm, and the Vickers hardness HV of the coating wheels ranges from 780 to 820. The process has the advantages that the high-hardness materials are used for manufacturing the blanks, and treatment such as heat treatment and nitriding are carried out on the blanks in multiple working procedures, so that press-in resistance on other atoms can be increased, lattice spacing of the surfaces of the materials can be reduced, affinity among the coating wheels and copper strips can be reduced during coating, the surfaces of products can be prevented from being strained due to adhesion, and the high-quality copper alloy through ground wires can be assuredly manufactured.

Description

The coated wheel of the coated unit of one Albatra metal-Through ground wire production line production technology
Technical field
The present invention relates to a kind of wheel body manufacturing process, particularly the coated wheel of the coated unit of Albatra metal-Through ground wire production line production technology.
Background technology
Through ground wire is the common ground line of high ferro electric railway equipment along the line, the earthing potential that can guarantee Along Railway signal transmission apparatus at any time, anywhere all equates, so the reliability of its properties of product and quality plays a very important role safely railway operation.
Copper alloy Through ground wire during fabrication,, then welds the longitudinal seam of copper alloy by the form of argon arc welding at the coated layer of copper alloy in copper stranded conductor surface by vertical packet technology, then guarantees that through several drawing copper alloy sheath is fitted in copper stranded conductor surface; After the product of producing annealed, polishing again, after-combustion, can obtain copper alloy Through ground wire product.
Wherein, coated unit at the coated layer of copper alloy sleeve in copper stranded conductor surface is the nucleus equipment of copper alloy Through ground wire production line, its effect is: be coated to gradually on copper stranded conductor the copper strips that is arranged on copper stranded conductor one side is continual, form a copper alloy sheath with longitudinal seam on copper stranded conductor.
The coated wheel of traditional coated unit adopts copper alloy material, its shortcoming is: easily produce bonding with the copper strips that is similarly copper alloy, pull product surface, affect product quality, therefore research and develop a kind of mechanical performance high and be difficult for and copper strips to produce bonding coated wheel imperative.
Summary of the invention
The technical problem to be solved in the present invention is to provide the coated wheel of the coated unit of Albatra metal-Through ground wire production line production technology, the coated wheel mechanical performance of manufacture good and be difficult for and copper strips generation bonding.
For solving the problems of the technologies described above, technical scheme of the present invention is: the coated wheel of the coated unit of Albatra metal-Through ground wire production line production technology, is characterized in that described processing step is:
Step S1: blank is made; Select the round steel of W18Cr4V material, forge hot upsetting formation; The blank of forging molding is annealed 2 hours at 860-880 ℃, at 730-750 ℃, be incubated 2 hours, and stove is chilled to room temperature;
Step S2: roughing; The work in-process heart is processed into coated wheel by drawing, and reserved allowance for finish 0.2mm;
Step S3: Quenching Treatment; To be coated wheel and be heated to 1270 ± 10 ℃, and be incubated after 30min, and immerse in quenching media and be quickly cooled to room temperature, hardening media is quenching oil, hardness HRC63-65 after making to quench; Tempering three times at 550-570 ℃ again;
Step S4: nitriding is processed; The nitriding 20 hours at 560 ℃ of temperature of coated wheel, oil cooling after coming out of the stove, penetrating layer degree of depth 0.13-0.18mm, vickers hardness hv 780-820;
Step S5: fine finishining, is ground to dimensional requirement on request at cylindrical grinder.
Preferably, in described step S1 hot forging temperature between 1150-1280 ℃.
Preferably, before described step S2 roughing, detect, guarantee inhomogeneous rank≤3 grade of carbide of blank, hardness is between 207-225HB.
The invention has the advantages that: coated wheel of the present invention selects high hardness material as blank, through multiple operation such as Overheating Treatment and nitridings, process, increase the resistance that other atoms are pressed into, reduce the interstitial void of material surface, reduce while being coated and the affinity of copper strips, avoid occurring the bonding product surface of pulling, guarantee that the copper alloy through track that adopts the coated wheel of the present invention to manufacture has higher quality.
The specific embodiment
Embodiment 1
Step S1: blank is made; Select the round steel of W18Cr4V material, forge hot upsetting formation, hot forging temperature is between 1150-1180 ℃; The blank of forging molding is annealed 2 hours at 860-880 ℃, at 730 ℃, be incubated 2 hours, and stove is chilled to room temperature;
Before the step roughing of Xia road, detect, guarantee inhomogeneous rank≤3 grade of carbide of blank, hardness is between 207-225HB.
Step S2: roughing; The work in-process heart is processed into coated wheel by drawing, and reserved allowance for finish 0.2mm;
Step S3: Quenching Treatment; To be coated wheel and be heated to 1270 ± 10 ℃, and be incubated after 30min, immerse in quenching media, be quickly cooled to 300-400 ℃ after air cooling, hardening media is quenching oil, hardness HRC63-65 after making to quench; Tempering three times at 550 ℃ again;
Step S4: nitriding is processed; The nitriding 8 hours at 560 ℃ of temperature of coated wheel, oil cooling after coming out of the stove, penetrating layer degree of depth 0.13-0.18mm, vickers hardness hv 780-820;
Step S5: fine finishining, is ground to dimensional requirement on request at cylindrical grinder.
After testing, the coated wheel performance parameter that the present embodiment makes is as follows:
1. product surface is smooth, surpasses 1Mm product surface no marking;
2. coated wheel long service life, is used zero defect so far;
3. quenching distortion is larger, and grinding amount is larger.
Embodiment 2
Step S1: blank is made; Select the round steel of W18Cr4V material, forge hot upsetting formation, hot forging temperature is between 1180-1200 ℃; The blank of forging molding is annealed 2 hours at 860-880 ℃, at 740 ℃, be incubated 2 hours, and stove is chilled to room temperature;
Before the step roughing of Xia road, detect, guarantee inhomogeneous rank≤3 grade of carbide of blank, hardness is between 207-225HB.
Step S2: roughing; The work in-process heart is processed into coated wheel by drawing, and reserved allowance for finish 0.2mm;
Step S3: Quenching Treatment; To be coated wheel and be heated to 1270 ± 10 ℃, and and be incubated after 30min, and immerse and in quenching media, be quickly cooled to 580-620 ℃ to stop air cooling after 30min, hardening media is neutral salt, hardness HRC63-65 after making to quench; Tempering three times at 560 ℃ again;
Step S4: nitriding is processed; The nitriding 8 hours at 560 ℃ of temperature of coated wheel, oil cooling after coming out of the stove, penetrating layer degree of depth 0.13-0.18mm, vickers hardness hv 780-820;
Step S5: fine finishining, is ground to dimensional requirement on request at cylindrical grinder.
After testing, the coated wheel that the present embodiment makes:
1. product surface is smooth, surpasses 1Mm product surface no marking;
2. coated wheel long service life, is used zero defect so far;
3. Technology for Heating Processing is complicated, and the cycle is long, and cost is high.
Embodiment 3
Step S1: blank is made; Select the round steel of W18Cr4V material, forge hot upsetting formation, hot forging temperature is between 1150-1180 ℃; The blank of forging molding is annealed 2 hours at 860-880 ℃, at 750 ℃, be incubated 2 hours, and stove is chilled to room temperature;
Before the step roughing of Xia road, detect, guarantee inhomogeneous rank≤3 grade of carbide of blank, hardness is between 207-225HB.
Step S2: roughing; The work in-process heart is processed into coated wheel by drawing, and reserved allowance for finish 0.2mm;
Step S3: Quenching Treatment; To be coated wheel and be heated to 1270 ± 10 ℃, and be incubated after 30min, and immerse in quenching media and be quickly cooled to room temperature, hardening media is quenching oil, hardness HRC63-65 after making to quench; Tempering three times at 570 ℃ again;
Step S4: nitriding is processed; The nitriding 8 hours at 560 ℃ of temperature of coated wheel, oil cooling after coming out of the stove, penetrating layer degree of depth 0.13-0.18mm, vickers hardness hv 780-820;
Step S5: fine finishining, is ground to dimensional requirement on request at cylindrical grinder.
After testing, the coated wheel that the present embodiment makes:
1. product surface is smooth, surpasses 1Mm product surface no marking;
2. coated wheel long service life, is used zero defect so far;
3. quenching distortion is moderate, and technique is simple.
In sum, above-mentioned coated wheel production technology, in service life and performance, all can reach instructions for use, but example 1 quenching distortion is larger, grinding amount is large, and example 2 distortion are minimum, but the complicated cost of Technology for Heating Processing is high, example 3 quenching distortions are moderate, and technique is simple, so the present invention adopts the production technology of the coated wheel of embodiment 3.

Claims (3)

1. the coated unit of an Albatra metal-Through ground wire production line is coated wheel production technology, it is characterized in that described processing step is:
Step S1: blank is made; Select the round steel of W18Cr4V material, forge hot upsetting formation; The blank of forging molding is annealed 2 hours at 860-880 ℃, at 730-750 ℃, be incubated 2 hours, and stove is chilled to room temperature;
Step S2: roughing; The work in-process heart is processed into coated wheel by drawing, and reserved allowance for finish 0.2mm;
Step S3: Quenching Treatment; To be coated wheel and be heated to 1270 ± 10 ℃, and be incubated after 30min, and immerse in quenching media and be quickly cooled to room temperature, hardening media is quenching oil, hardness HRC63-65 after making to quench; Tempering three times at 550-570 ℃ again;
Step S4: nitriding is processed; The nitriding 20 hours at 560 ℃ of temperature of coated wheel, oil cooling after coming out of the stove, penetrating layer degree of depth 0.13-0.18mm, vickers hardness hv 780-820;
Step S5: fine finishining, is ground to dimensional requirement on request at cylindrical grinder.
2. the coated wheel of the coated unit of copper alloy Through ground wire production line according to claim 1 production technology, is characterized in that: in described step S1, hot forging temperature is between 1150-1280 ℃.
3. the coated wheel of the coated unit of copper alloy Through ground wire production line according to claim 1 production technology, is characterized in that: before described step S2 roughing, detect, guarantee inhomogeneous rank≤3 grade of carbide of blank, hardness is between 207-225HB.
CN201310489894.0A 2013-10-18 2013-10-18 Process for manufacturing coating wheels of coating units of production lines for copper alloy through ground wires Active CN103586631B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060079A (en) * 2014-06-30 2014-09-24 成都高普石油工程技术有限公司 Sprayer processing technique capable of lowering processing difficulty
CN111015124A (en) * 2019-12-30 2020-04-17 广州梅隆金属制品有限公司 Structural member for 5G signal transmitting tower and forging method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1229018A (en) * 1998-03-13 1999-09-22 张元增 Method for making speed changer gear
US5976053A (en) * 1995-10-30 1999-11-02 Nissan Motor Co., Ltd. Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom
CN1788928A (en) * 2005-12-13 2006-06-21 纪清 Hot-rolled steel wheel production process
CN100467204C (en) * 2005-04-25 2009-03-11 天津亨深机械制造有限公司 Rope wheel pressed forming process
CN102091921A (en) * 2011-01-07 2011-06-15 常州市万航工矿设备有限公司 Method for manufacturing bevel gear of axle gear box for diesel locomotives
CN102764838A (en) * 2012-07-05 2012-11-07 无锡市钻通工程机械有限公司 Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976053A (en) * 1995-10-30 1999-11-02 Nissan Motor Co., Ltd. Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom
CN1229018A (en) * 1998-03-13 1999-09-22 张元增 Method for making speed changer gear
CN100467204C (en) * 2005-04-25 2009-03-11 天津亨深机械制造有限公司 Rope wheel pressed forming process
CN1788928A (en) * 2005-12-13 2006-06-21 纪清 Hot-rolled steel wheel production process
CN102091921A (en) * 2011-01-07 2011-06-15 常州市万航工矿设备有限公司 Method for manufacturing bevel gear of axle gear box for diesel locomotives
CN102764838A (en) * 2012-07-05 2012-11-07 无锡市钻通工程机械有限公司 Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060079A (en) * 2014-06-30 2014-09-24 成都高普石油工程技术有限公司 Sprayer processing technique capable of lowering processing difficulty
CN111015124A (en) * 2019-12-30 2020-04-17 广州梅隆金属制品有限公司 Structural member for 5G signal transmitting tower and forging method thereof

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Address after: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu, Nantong

Patentee after: Zhong Tianyu product Science and Technology Ltd.

Address before: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu, Nantong

Patentee before: Nantong Yupin Communication Technology Co.,Ltd.

Address after: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu, Nantong

Patentee after: Zhong Tianyu product Science and Technology Ltd.

Address before: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu, Nantong

Patentee before: Nantong Yupin Communication Technology Co.,Ltd.

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Effective date of registration: 20200402

Address after: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu

Patentee after: ZHONGTIAN INTELLIGENT EQUIPMENT Co.,Ltd.

Address before: 226000 No. 5 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu, Nantong

Patentee before: ZT YUPIN TECHNOLOGY Co.,Ltd.