CN105268759A - Bad cold-upset steel wire reformation and reuse process - Google Patents
Bad cold-upset steel wire reformation and reuse process Download PDFInfo
- Publication number
- CN105268759A CN105268759A CN201510739258.8A CN201510739258A CN105268759A CN 105268759 A CN105268759 A CN 105268759A CN 201510739258 A CN201510739258 A CN 201510739258A CN 105268759 A CN105268759 A CN 105268759A
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- steel wire
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Abstract
The invention relates to a bad cold-upset steel wire reformation and reuse process. The process is characterized by comprising the following steps: (1) raw materials: cold-upset steel wires are to be degraded; (2) whole coil of degreasing and demolding: the cold-upset steel wires to be degraded are totally immersed in a metal degreasing agent to perform the whole coil of degreasing and demolding; (3) the cold-upset steel wires to be degraded are immersed in Ca(OH)2 solution, and are taken out for natural cooling; (4) the semi-product wire drawing is performed; (5) the heat treatment is performed; (6) acid washing: the steel wires treated in the step (5) are washed by acid in an acid washing tank; (7) phosphorization: the steel wires treated in the step (6) are phosphorized in a phosphorization tank; (8) saponification: the steel wires treated in the step (7) are saponified in a saponification tank; (9) the drying is performed; and (10) the finish-product wire drawing is performed. The process enables unqualified products to return to a qualified product state again through secondary machining.
Description
Technical field
The present invention relates to a kind of wire rod deep process, especially a kind of bad cold-heading wire transformation of the way recycling technique.
Background technology
Along with manufacturing development, cold-heading wire consumption increases day by day.Cold-heading wire, current international practice appellation: CHQ, is used to the masterbatch processing securing member, cold-extruded part, has good machinery to add cold-forming property.
When cold-heading wire because get rusty, tolerance departs from and ellipse difference mark, intensity exceeds standard, decarburization exceeds standard, nodularization is low, user can return goods, and runs into this situation and generally to demote use, sometimes also can scrap process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of bad cold-heading wire transformation of the way recycling technique being provided, by again processing, making underproof product originally come back to certified products state.
According to technical scheme provided by the invention, a kind of bad cold-heading wire transformation of the way recycling technique, is characterized in that, comprise the following steps:
(1) raw material: the cold-heading wire intending degradation;
(2) entire volume degreasing demoulding: the cold-heading wire intending degradation is immersed in metal degreasing agent completely and keeps 5 ~ 10 minutes, then rinsing 1 ~ 3 minute in the clear water being immersed in normal temperature; The concentration of described metal degreasing agent is 10 ~ 15%, temperature 80 ~ 90 DEG C;
(3) coat lime: the Ca(OH by concentration 3 ~ 6%)
2solution is heated to 80 ~ 90 DEG C, and the cold-heading wire intending degradation is immersed in Ca(OH)
2in solution 60 ~ 90 seconds, take out nature and dry;
(4) semi-finished product wire drawing: the steel wire after step (3) being processed adopts single or continuous wire drawing equipment to carry out wire drawing, and draft is 10 ~ 15%;
(5) heat treatment: the steel wire after step (4) being processed is heat-treated under protective atmosphere, and temperature is 660 ~ 700 DEG C, is incubated 4 ~ 6 hours, then cool to less than 500 DEG C coolings naturally in atmosphere;
(6) pickling: by step (5) process after steel wire in descaling bath, carry out pickling, adopt in descaling bath concentration be 18 ~ 20% hydrochloric acid, descaling bath temperature is 30 ~ 45 DEG C, and pickling time is 5 ~ 15 minutes;
(7) phosphatization: the steel wire after step (6) being processed is carrying out phosphatization at Phosphating Slot, and the total acidity of Phosphating Solution is 35 ~ 45 points, and temperature is 75 ~ 85 DEG C, and time controling was at 5 ~ 10 minutes;
(8) saponification: the steel wire after step (7) being processed carries out saponification in soap tank, and saponification liquor concentration is 2 ~ 4%, and temperature is 75 ~ 85 DEG C, and the time is 2 ~ 3 minutes;
(9) dry: the steel wire after step (8) being processed is dried, and temperature is 95 ~ 100 DEG C, and the time is 5 ~ 15 minutes;
(10) finished product wire drawing: the steel wire after step (9) being processed adopts single or continuous wire drawing equipment to carry out wire drawing, and draft is 5 ~ 8%.
Further, described protective atmosphere adopts nitrogen.
Further, described semi-finished product wire drawing and finished product drawing step adopt cold-drawing process, and mould adopts sintered-carbide die.
The present invention has the following advantages: adopt technique of the present invention can realize product and do not demote, and reduces social resources waste, also for manufacturer creates profit.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment one: a kind of bad cold-heading wire transformation of the way recycling technique, comprises the following steps:
(1) raw material: the cold-heading wire intending degradation;
(2) entire volume degreasing demoulding: adopt metal degreasing agent, as the degreasing agent that Pa Kalai essence company produces, concentration 10%, temperature 80 DEG C, the cold-heading wire intending degradation is immersed in metal degreasing agent completely and keeps 10 minutes, then rinsing 1 minute in the clear water being immersed in normal temperature;
(3) coat lime: join Ca(OH in 3% ratio)
2solution, Ca(OH)
2solution is heated to 80 DEG C, and the cold-heading wire intending degradation is immersed in Ca(OH)
2in solution 90 seconds, take out nature and dry;
(4) semi-finished product 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/special requirement; Described draft=(distortion starting section amass-be out of shape after sectional area)/be out of shape before sectional area × 100%;
(5) heat treatment: Equipment for Heating Processing adopts the ambient anneal stove of electrical heating or gas heating better, general employing nitrogen is as protective gas, and in stove, oxygen content need lower than 0.17%, and Control for Kiln Temperature is at 660 DEG C, be incubated 6 hours, then cool to less than 500 DEG C coolings naturally in atmosphere;
(6) pickling: adopt hydrochloric acid immersion type descaling bath, concentration of hydrochloric acid is 18%, temperature 30 DEG C, and pickling time is 15 minutes;
(7) phosphatization: adopt immersion type Phosphating Slot, the total acidity of Phosphating Solution is 35 points, and temperature is 75 DEG C, and time controling was at 10 minutes;
(8) saponification: adopt immersion type soap tank, saponification liquor concentration is 2%, and temperature is 75 DEG C, and the time is 3 minutes;
(9) dry: adopt paint oven, temperature 95 DEG C, the time is 15 minutes (environmentally temperature suitably adjusts);
(10) finished product wire drawing: adopt single or continuous wire drawing equipment, draft 5 ~ 8%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular/special requirement;
(11) finished product packing warehouse-in.
Embodiment two: a kind of bad cold-heading wire transformation of the way recycling technique, comprises the following steps:
(1) raw material: the cold-heading wire intending degradation;
(2) entire volume degreasing demoulding: adopt metal degreasing agent, as the degreasing agent that Pa Kalai essence company produces, concentration 15%, temperature 90 DEG C, is immersed in the cold-heading wire intending degradation completely in metal degreasing agent and keeps 5 minutes, then rinsing 3 minutes in the clear water being immersed in normal temperature;
(3) coat lime: join Ca(OH in 6% ratio)
2solution, Ca(OH)
2solution is heated to 90 DEG C, and the cold-heading wire intending degradation is immersed in Ca(OH)
2in solution 60 seconds, take out nature and dry;
(4) semi-finished product 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/special requirement;
(5) heat treatment: Equipment for Heating Processing adopts the ambient anneal stove of electrical heating or gas heating better, general employing nitrogen is as protective gas, and in stove, oxygen content need lower than 0.17%, and Control for Kiln Temperature is at 700 DEG C, be incubated 4 hours, then cool to less than 500 DEG C coolings naturally in atmosphere;
(6) pickling: adopt hydrochloric acid immersion type descaling bath, concentration of hydrochloric acid is 20%, temperature 45 C, and pickling time is 5 minutes;
(7) phosphatization: adopt immersion type Phosphating Slot, the total acidity of Phosphating Solution is 45 points, and temperature is 85 DEG C, and time controling was at 5 minutes;
(8) saponification: adopt immersion type soap tank, saponification liquor concentration is 4%, and temperature is 85 DEG C, and the time is 2 minutes;
(9) dry: adopt paint oven, temperature 100 DEG C, the time is 5 minutes (environmentally temperature suitably adjusts);
(10) finished product wire drawing: adopt single or continuous wire drawing equipment, draft 8%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular/special requirement;
(11) finished product packing warehouse-in.
Embodiment three: a kind of bad cold-heading wire transformation of the way recycling technique, comprises the following steps:
(1) raw material: the cold-heading wire intending degradation;
(2) entire volume degreasing demoulding: adopt metal degreasing agent, as the degreasing agent that Pa Kalai essence company produces, concentration 12%, temperature 85 DEG C, is immersed in the cold-heading wire intending degradation completely in metal degreasing agent and keeps 6 minutes, then rinsing 2 minutes in the clear water being immersed in normal temperature;
(3) coat lime: join Ca(OH in 5% ratio)
2solution, Ca(OH)
2solution is heated to 85 DEG C, and the cold-heading wire intending degradation is immersed in Ca(OH)
2in solution 80 seconds, take out nature and dry;
(4) semi-finished product 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/special requirement;
(5) heat treatment: Equipment for Heating Processing adopts the ambient anneal stove of electrical heating or gas heating better, general employing nitrogen is as protective gas, and in stove, oxygen content need lower than 0.17%, and Control for Kiln Temperature is at 680 DEG C, be incubated 5 hours, then cool to less than 500 DEG C coolings naturally in atmosphere;
(6) pickling: adopt hydrochloric acid immersion type descaling bath, concentration of hydrochloric acid is 19%, temperature 40 DEG C, and pickling time is 10 minutes;
(7) phosphatization: adopt immersion type Phosphating Slot, the total acidity of Phosphating Solution is 40 points, and temperature is 80 DEG C, and time controling was at 6 minutes;
(8) saponification: adopt immersion type soap tank, saponification liquor concentration is 3%, and temperature is 80 DEG C, and the time is 2.5 minutes;
(9) dry: adopt paint oven, temperature 96 DEG C, the time is 10 minutes (environmentally temperature suitably adjusts);
(10) finished product wire drawing: adopt single or continuous wire drawing equipment, draft 6%, adopts cold-drawing process, and mould adopts sintered-carbide die, and drawing speed is determined according to equipment performance, does not have particular/special requirement;
(11) finished product packing warehouse-in.
Claims (3)
1. a bad cold-heading wire transformation of the way recycling technique, is characterized in that, comprise the following steps:
(1) raw material: the cold-heading wire intending degradation;
(2) entire volume degreasing demoulding: the cold-heading wire intending degradation is immersed in metal degreasing agent completely and keeps 5 ~ 10 minutes, then rinsing 1 ~ 3 minute in the clear water being immersed in normal temperature; The concentration of described metal degreasing agent is 10 ~ 15%, temperature 80 ~ 90 DEG C;
(3) coat lime: the Ca(OH by concentration 3 ~ 6%)
2solution is heated to 80 ~ 90 DEG C, and the cold-heading wire intending degradation is immersed in Ca(OH)
2in solution 60 ~ 90 seconds, take out nature and dry;
(4) semi-finished product wire drawing: the steel wire after step (3) being processed adopts single or continuous wire drawing equipment to carry out wire drawing, and draft is 10 ~ 15%;
(5) heat treatment: the steel wire after step (4) being processed is heat-treated under protective atmosphere, and temperature is 660 ~ 700 DEG C, is incubated 4 ~ 6 hours, then cool to less than 500 DEG C coolings naturally in atmosphere;
(6) pickling: by step (5) process after steel wire in descaling bath, carry out pickling, adopt in descaling bath concentration be 18 ~ 20% hydrochloric acid, descaling bath temperature is 30 ~ 45 DEG C, and pickling time is 5 ~ 15 minutes;
(7) phosphatization: the steel wire after step (6) being processed is carrying out phosphatization at Phosphating Slot, and the total acidity of Phosphating Solution is 35 ~ 45 points, and temperature is 75 ~ 85 DEG C, and time controling was at 5 ~ 10 minutes;
(8) saponification: the steel wire after step (7) being processed carries out saponification in soap tank, and saponification liquor concentration is 2 ~ 4%, and temperature is 75 ~ 85 DEG C, and the time is 2 ~ 3 minutes;
(9) dry: the steel wire after step (8) being processed is dried, and temperature is 95 ~ 100 DEG C, and the time is 5 ~ 15 minutes;
(10) finished product wire drawing: the steel wire after step (9) being processed adopts single or continuous wire drawing equipment to carry out wire drawing, and draft is 5 ~ 8%.
2. bad cold-heading wire transformation of the way recycling technique as claimed in claim 1, is characterized in that: described protective atmosphere adopts nitrogen.
3. bad cold-heading wire transformation of the way recycling technique as claimed in claim 1, is characterized in that: described semi-finished product wire drawing and finished product drawing step adopt cold-drawing process, and mould adopts sintered-carbide die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510739258.8A CN105268759A (en) | 2015-11-04 | 2015-11-04 | Bad cold-upset steel wire reformation and reuse process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510739258.8A CN105268759A (en) | 2015-11-04 | 2015-11-04 | Bad cold-upset steel wire reformation and reuse process |
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| Publication Number | Publication Date |
|---|---|
| CN105268759A true CN105268759A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510739258.8A Pending CN105268759A (en) | 2015-11-04 | 2015-11-04 | Bad cold-upset steel wire reformation and reuse process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798546A (en) * | 2016-03-25 | 2016-07-27 | 大连新锋钢管厂 | Production process of fastening hoop |
| CN108531920A (en) * | 2018-04-25 | 2018-09-14 | 三门通顺铆钉有限公司 | A kind of pre-treating technology of hydraulic plunger workpiece |
| CN111496005A (en) * | 2020-04-30 | 2020-08-07 | 苏州强新合金材料科技有限公司 | Steel wire rod lime wire stretching process |
| CN112588846A (en) * | 2020-11-23 | 2021-04-02 | 江阴法尔胜泓昇不锈钢制品有限公司 | Production process of alloy steel wire for cold heading |
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| JPS5531177A (en) * | 1978-08-28 | 1980-03-05 | Mishima Kosan Co Ltd | Friction plating apparatus |
| CN101985754A (en) * | 2010-09-21 | 2011-03-16 | 江苏赛福天钢绳有限公司 | Continuous heat processing technology of steel wire |
| CN102861782A (en) * | 2012-10-31 | 2013-01-09 | 东莞市科力钢铁线材有限公司 | Manufacturing process of screw wires |
| CN103590026A (en) * | 2013-10-15 | 2014-02-19 | 昆山宏凌电子有限公司 | Thermal treatment processing method for steel wire |
| CN104525614A (en) * | 2014-11-11 | 2015-04-22 | 东莞市科力钢铁线材有限公司 | Production process of alloy steel material for high-strength internal hexagonal wrench |
-
2015
- 2015-11-04 CN CN201510739258.8A patent/CN105268759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531177A (en) * | 1978-08-28 | 1980-03-05 | Mishima Kosan Co Ltd | Friction plating apparatus |
| CN101985754A (en) * | 2010-09-21 | 2011-03-16 | 江苏赛福天钢绳有限公司 | Continuous heat processing technology of steel wire |
| CN102861782A (en) * | 2012-10-31 | 2013-01-09 | 东莞市科力钢铁线材有限公司 | Manufacturing process of screw wires |
| CN103590026A (en) * | 2013-10-15 | 2014-02-19 | 昆山宏凌电子有限公司 | Thermal treatment processing method for steel wire |
| CN104525614A (en) * | 2014-11-11 | 2015-04-22 | 东莞市科力钢铁线材有限公司 | Production process of alloy steel material for high-strength internal hexagonal wrench |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798546A (en) * | 2016-03-25 | 2016-07-27 | 大连新锋钢管厂 | Production process of fastening hoop |
| CN108531920A (en) * | 2018-04-25 | 2018-09-14 | 三门通顺铆钉有限公司 | A kind of pre-treating technology of hydraulic plunger workpiece |
| CN111496005A (en) * | 2020-04-30 | 2020-08-07 | 苏州强新合金材料科技有限公司 | Steel wire rod lime wire stretching process |
| CN112588846A (en) * | 2020-11-23 | 2021-04-02 | 江阴法尔胜泓昇不锈钢制品有限公司 | Production process of alloy steel wire for cold heading |
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Application publication date: 20160127 |
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