CN105296717A - Cyclic utilization process for waste oil-hardened high-carbon spring steel wire - Google Patents
Cyclic utilization process for waste oil-hardened high-carbon spring steel wire Download PDFInfo
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- CN105296717A CN105296717A CN201510739267.7A CN201510739267A CN105296717A CN 105296717 A CN105296717 A CN 105296717A CN 201510739267 A CN201510739267 A CN 201510739267A CN 105296717 A CN105296717 A CN 105296717A
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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
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Abstract
The invention relates to a cyclic utilization process for a waste oil-hardened high-carbon spring steel wire. The cyclic utilization process is characterized by comprising the following steps: (1) taking the waste oil-hardened high-carbon spring steel wire as a raw material; (2) completely soaking the waste oil-hardened high-carbon spring steel wire into a metal degreasing agent to remove oil of a whole volume, and further soaking in clean water at the normal temperature for rinsing; (3) performing heat treatment in a well annealing furnace, washing the furnace with nitrogen before heating, controlling the oxygen content to be less than 1%, heating to be 650-680 DEGC, after the internal temperature of the spring steel wire reaches the keeping temperature 2-4 hours later, keeping the temperature for 0.5-1.5 hours longer; (4) uncoiling; (5) performing shot blasting by using a shot blasting machine; (6) drawing wires by using single or continuous drawing equipment, wherein the surface reduction rate is 10-15%; and (7) treating on a full-automatic oil-hardened spring steel wire heat treatment production line. By adopting the cyclic utilization process, the problem of cyclic utilization of the oil-hardened spring steel wire can be solved, and cyclic utilization of wastes can be achieved.
Description
Technical field
The present invention relates to a kind of wire rod deep processing technology, the recycling technique of steel wire discarded by especially a kind of oil quenching high-carbon spring.
Background technology
Along with manufacturing development, truck, car oil quenching spring wire consumption is increased day by day.
Traditional oil quenching spring wire complete processing is: gren rod → pickling → washing → painting borax → work in-process wire drawing → oil quenching → oiling → finished product packing warehouse-in.Oil quenching spring wire is exceptionally straight state when not having external force constraint.
In prior art, when finished product oil quenching spring wire because getting rusty, the reason such as specification deviation can not continue to use time, generally only scrap as steel scrap process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of oil quenching high-carbon spring to discard the recycling technique of steel wire, solve the Utilizing question again of oil quenching spring wire, realize the recycle again of refuse.
According to technical scheme provided by the invention, the recycling technique of steel wire discarded by described oil quenching high-carbon spring, it is characterized in that, comprise the following steps:
(1) raw material: intend discarded oil quenching spring wire;
(2) entire volume grease-removing agent soaks oil removing: be immersed in completely in metal degreasing agent keep intending discarded oil quenching spring wire 5 ~ 10 minutes, then rinsing 1 ~ 3 minute in the clear water being immersed in normal temperature; The concentration of metal degreasing agent is 10 ~ 15%, and temperature is 80 ~ 90 DEG C;
(3) well annealing furnace thermal treatment: heat-treat at well annealing furnace, first use nitrogen prepurging before intensification, Control for Oxygen Content, below 1%, then starts to be warming up to 650 ~ 680 DEG C, after 2 ~ 4 hours rear spring steel wire internal temperatures reach holding temperature, then be incubated 0.5 ~ 1.5 hour;
(4) uncoiling;
(5) ball blast: adopt shot-blasting machine to carry out ball blast, ball blast diameter is 0.3 ~ 0.8mm, and shot blasting velocity is 50 ~ 80m/s, and the ball blast time is 45 ~ 60min;
(6) work in-process wire drawing: adopt single or continuous wire drawing equipment to carry out wire drawing, draft is 10 ~ 15%;
(7) oil quenching: adopt full-automatic oil quenching spring wire heat-treatment production line, key step is that cold → cleaning → tempering heating → tempering insulation → tempering spray cold → traction → flaw detection → oiling → shearing → guiding → take-up is sprayed in unwrapping wire → reason line → aligning force feed → cleaning → Quench heating → quenching and preserving heat → quenching.
Further, in described step (3) heat treatment process, rush RX gas 5 ~ 15 cubes ms/h when well annealing furnace is warming up to 500 ~ 550 DEG C, the composition of described RX gas is: hydrogen accounts for 30 ~ 35%, carbon monoxide accounts for 20 ~ 25%, all the other are nitrogen; Dew point controls at-5 ~-10 DEG C.
Further, in described step (7), quenching temperature is 450 ~ 550 DEG C, and the time is 45 ~ 65min; Described tempering temperature is 400 ~ 450 DEG C, and the time is 10 ~ 20min.
The recycling technique of steel wire discarded by oil quenching high-carbon spring of the present invention, can solve the Utilizing question again of oil quenching spring wire, realizes the recycle again of refuse.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment one: the recycling technique of steel wire discarded by a kind of oil quenching high-carbon spring, comprises the following steps:
(1) raw material: intend discarded oil quenching spring wire;
(2) entire volume grease-removing agent soaks oil removing: adopt metal degreasing agent, as the grease-removing agent that Pa Kalai essence company produces, concentration is 10%, and temperature is 80 DEG C, be immersed in completely in metal degreasing agent keep intending discarded oil quenching spring wire 10 minutes, then rinsing 1 minute in the clear water being immersed in normal temperature;
(3) well annealing furnace thermal treatment: be coiled state after ensureing uncoiling, heat-treat at well annealing furnace and eliminate stress; First use nitrogen prepurging before intensification, Control for Oxygen Content, below 1%, then starts to be warming up to 650 DEG C, after spring wire internal temperature reaches holding temperature (general 4 hours of this time, different capacities of equipment has certain difference), then is incubated 1.5 hours; In described heat treatment process, rush RX gas 5 cubes ms/h (RX gas major ingredient: hydrogen accounts for 30%, and carbon monoxide accounts for 20%, all the other are nitrogen) when well annealing furnace is warming up to 500 DEG C; Dew point controls at-5 DEG C, to prevent material surface decarburization;
(4) uncoiling: cut off strap with steel band, adopts fork truck to provoke and shakes loose, naturally loose between spring wire;
(5) ball blast: adopt 3500 shot-blasting machines (as 3500 types that Hao Zhong Mechanology Inc. produces) to carry out ball blast, ball blast diameter is 0.3mm, and shot blasting velocity is 50m/s, and the ball blast time is 60min;
(6) work in-process wire drawing: adopt single or continuous wire drawing equipment, draft is 10%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular requirement;
(7) oil quenching: adopt full-automatic oil quenching spring wire heat-treatment production line, key step: cold → cleaning → tempering heating → tempering insulation → tempering spray cold → traction → flaw detection → oiling → shearing → guiding → take-up is sprayed in unwrapping wire → reason line → aligning force feed → cleaning → Quench heating → quenching and preserving heat → quenching;
Described quenching temperature is 450 DEG C, and the time is 65min; Described tempering temperature is 400 DEG C, and the time is 20min; Described flaw detection adopts ultrasonic surface inspection technique, matting by cleaning, antirust and surface treatment forms;
(8) finished product packing warehouse-in.
Embodiment two: the recycling technique of steel wire discarded by a kind of oil quenching high-carbon spring, comprises the following steps:
(1) raw material: intend discarded oil quenching spring wire;
(2) entire volume grease-removing agent soaks oil removing: adopt metal degreasing agent, as the grease-removing agent that Pa Kalai essence company produces, concentration is 15%, and temperature is 90 DEG C, be immersed in completely in metal degreasing agent keep intending discarded oil quenching spring wire 5 minutes, then rinsing 3 minutes in the clear water being immersed in normal temperature;
(3) well annealing furnace thermal treatment: be coiled state after ensureing uncoiling, heat-treat at well annealing furnace and eliminate stress; First use nitrogen prepurging before intensification, Control for Oxygen Content, below 1%, then starts to be warming up to 680 DEG C, after spring wire internal temperature reaches holding temperature (general 2 hours of this time, different capacities of equipment has certain difference), then is incubated 0.5 hour; In described heat treatment process, rush RX gas 15 cubes ms/h (RX gas major ingredient: hydrogen accounts for 35%, and carbon monoxide accounts for 25%, all the other are nitrogen) when well annealing furnace is warming up to 550 DEG C; Dew point controls at-10 DEG C, to prevent material surface decarburization;
(4) uncoiling: cut off strap with steel band, adopts fork truck to provoke and shakes loose, naturally loose between spring wire;
(5) ball blast: adopt 3500 shot-blasting machines (as 3500 types that Hao Zhong Mechanology Inc. produces) to carry out ball blast, ball blast diameter is 0.8mm, and shot blasting velocity is 80m/s, and the ball blast time is 45min;
(6) work in-process wire drawing: adopt single or continuous wire drawing equipment, draft is 15%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular requirement;
(7) oil quenching: adopt full-automatic oil quenching spring wire heat-treatment production line, key step: cold → cleaning → tempering heating → tempering insulation → tempering spray cold → traction → flaw detection → oiling → shearing → guiding → take-up is sprayed in unwrapping wire → reason line → aligning force feed → cleaning → Quench heating → quenching and preserving heat → quenching;
Described quenching temperature is 550 DEG C, and the time is 45min; Described tempering temperature is 450 DEG C, and the time is 10min; Described flaw detection adopts ultrasonic surface inspection technique, matting by cleaning, antirust and surface treatment forms;
(8) finished product packing warehouse-in.
Embodiment three: the recycling technique of steel wire discarded by a kind of oil quenching high-carbon spring, comprises the following steps:
(1) raw material: intend discarded oil quenching spring wire;
(2) entire volume grease-removing agent soaks oil removing: adopt metal degreasing agent, as the grease-removing agent that Pa Kalai essence company produces, concentration is 12%, and temperature is 85 DEG C, be immersed in completely in metal degreasing agent keep intending discarded oil quenching spring wire 6 minutes, then rinsing 2 minutes in the clear water being immersed in normal temperature;
(3) well annealing furnace thermal treatment: be coiled state after ensureing uncoiling, heat-treat at well annealing furnace and eliminate stress; First use nitrogen prepurging before intensification, Control for Oxygen Content, below 1%, then starts to be warming up to 660 DEG C, after spring wire internal temperature reaches holding temperature (general 3 hours of this time, different capacities of equipment has certain difference), then is incubated 1 hour; In described heat treatment process, rush RX gas 10 cubes ms/h (RX gas major ingredient: hydrogen accounts for 32%, and carbon monoxide accounts for 24%, all the other are nitrogen) when well annealing furnace is warming up to 525 DEG C; Dew point controls at-6 DEG C, to prevent material surface decarburization;
(4) uncoiling: cut off strap with steel band, adopts fork truck to provoke and shakes loose, naturally loose between spring wire;
(5) ball blast: adopt 3500 shot-blasting machines (as 3500 types that Hao Zhong Mechanology Inc. produces) to carry out ball blast, ball blast diameter is 0.5mm, and shot blasting velocity is 60m/s, and the ball blast time is 50min;
(6) work in-process wire drawing: adopt single or continuous wire drawing equipment, draft is 12%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular requirement;
(7) oil quenching: adopt full-automatic oil quenching spring wire heat-treatment production line, key step: cold → cleaning → tempering heating → tempering insulation → tempering spray cold → traction → flaw detection → oiling → shearing → guiding → take-up is sprayed in unwrapping wire → reason line → aligning force feed → cleaning → Quench heating → quenching and preserving heat → quenching;
Described quenching temperature is 500 DEG C, and the time is 50min; Described tempering temperature is 425 DEG C, and the time is 15min; Described flaw detection adopts ultrasonic surface inspection technique, matting by cleaning, antirust and surface treatment forms;
(8) finished product packing warehouse-in.
Claims (3)
1. a recycling technique for steel wire discarded by oil quenching high-carbon spring, it is characterized in that, comprise the following steps:
(1) raw material: intend discarded oil quenching spring wire;
(2) entire volume grease-removing agent soaks oil removing: be immersed in completely in metal degreasing agent keep intending discarded oil quenching spring wire 5 ~ 10 minutes, then rinsing 1 ~ 3 minute in the clear water being immersed in normal temperature; The concentration of metal degreasing agent is 10 ~ 15%, and temperature is 80 ~ 90 DEG C;
(3) well annealing furnace thermal treatment: heat-treat at well annealing furnace, first use nitrogen prepurging before intensification, Control for Oxygen Content, below 1%, then starts to be warming up to 650 ~ 680 DEG C, after 2 ~ 4 hours rear spring steel wire internal temperatures reach holding temperature, then be incubated 0.5 ~ 1.5 hour;
(4) uncoiling;
(5) ball blast: adopt shot-blasting machine to carry out ball blast, ball blast diameter is 0.3 ~ 0.8mm, and shot blasting velocity is 50 ~ 80m/s, and the ball blast time is 45 ~ 60min;
(6) work in-process wire drawing: adopt single or continuous wire drawing equipment to carry out wire drawing, draft is 10 ~ 15%;
(7) oil quenching: adopt full-automatic oil quenching spring wire heat-treatment production line, key step is that cold → cleaning → tempering heating → tempering insulation → tempering spray cold → traction → flaw detection → oiling → shearing → guiding → take-up is sprayed in unwrapping wire → reason line → aligning force feed → cleaning → Quench heating → quenching and preserving heat → quenching.
2. the recycling technique of steel wire discarded by oil quenching high-carbon spring as claimed in claim 1, it is characterized in that: in described step (3) heat treatment process, rush RX gas 5 ~ 15 cubes ms/h when well annealing furnace is warming up to 500 ~ 550 DEG C, the composition of described RX gas is: hydrogen accounts for 30 ~ 35%, carbon monoxide accounts for 20 ~ 25%, all the other are nitrogen; Dew point controls at-5 ~-10 DEG C.
3. the recycling technique of steel wire discarded by oil quenching high-carbon spring as claimed in claim 1, it is characterized in that: in described step (7), quenching temperature is 450 ~ 550 DEG C, and the time is 45 ~ 65min; Described tempering temperature is 400 ~ 450 DEG C, and the time is 10 ~ 20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510739267.7A CN105296717A (en) | 2015-11-04 | 2015-11-04 | Cyclic utilization process for waste oil-hardened high-carbon spring steel wire |
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| CN201510739267.7A CN105296717A (en) | 2015-11-04 | 2015-11-04 | Cyclic utilization process for waste oil-hardened high-carbon spring steel wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151732A (en) * | 2017-04-26 | 2017-09-12 | 江阴市钧益钢丝制品有限公司 | The Technology for Heating Processing and its production technology of hexagonal wire string |
| CN110856860A (en) * | 2018-08-23 | 2020-03-03 | 赵路朔 | Recycling process of waste stainless steel plate edge wires |
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| US4174981A (en) * | 1978-02-06 | 1979-11-20 | Laclede Steel Company | Method of manufacturing springs, including the production of rod therefor |
| JPS59205487A (en) * | 1983-05-07 | 1984-11-21 | Chuo Spring Co Ltd | Preparation of oil tempered wire for spring |
| CN1152625A (en) * | 1995-09-01 | 1997-06-25 | 住友电气工业株式会社 | Oil tempering steel wire and making method thereof |
| US6688148B1 (en) * | 2001-01-26 | 2004-02-10 | Defiance Precision Products, Inc. | Manufacturing process for making engine components of high carbon content steel using cold forming techniques |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151732A (en) * | 2017-04-26 | 2017-09-12 | 江阴市钧益钢丝制品有限公司 | The Technology for Heating Processing and its production technology of hexagonal wire string |
| CN107151732B (en) * | 2017-04-26 | 2019-04-02 | 江阴市钧益特种钢丝科技有限公司 | The heat treatment process and its production technology of hexagonal wire string |
| CN110856860A (en) * | 2018-08-23 | 2020-03-03 | 赵路朔 | Recycling process of waste stainless steel plate edge wires |
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Application publication date: 20160203 |