CN110238214A - A kind of high speed steel temperature pulls out technique - Google Patents
A kind of high speed steel temperature pulls out technique Download PDFInfo
- Publication number
- CN110238214A CN110238214A CN201910628016.XA CN201910628016A CN110238214A CN 110238214 A CN110238214 A CN 110238214A CN 201910628016 A CN201910628016 A CN 201910628016A CN 110238214 A CN110238214 A CN 110238214A
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- CN
- China
- Prior art keywords
- graphite
- wire rod
- high speed
- steel wire
- raw material
- 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.)
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Classifications
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- 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
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
-
- 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
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
- B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
- B21C43/04—Devices for de-scaling wire or like flexible work
-
- 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
- B21C9/00—Cooling, heating or lubricating drawing material
-
- 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
- B21C9/00—Cooling, heating or lubricating drawing material
- B21C9/02—Selection of compositions therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a kind of high speed steel temperature to pull out technique, includes the following steps；High speed steel wire rod removes scale on surface using acid cleaning process, prevent iron scale during the drawing process to the damage of mold and to the influence of product surface quality, phosphatization and saponification process are carried out after pickling in time, certain lubricating action is played to subsequent drawing；Treated wire rod, one end are pressed into the thin head of 150-300mm long, enter mold to facilitate；Wire rod after the pointing of end is passed through into graphite coating system；Steel wire after the spraying graphite of surface passes through load coil, and wire rod temperature reaches 500-700 DEG C；Wire rod passes through hot candied mechanism；By the steel wire after mold, the cooling water in cooling body is passed rapidly through；Collection device collects steel wire bending.The present invention is produced by such technique, improves efficiency, reduces Carbide Particle Cracking, reduces the decarburization of product, ensure that final products excellent interior tissue and surface quality.
Description
Technical field
The present invention relates to high-speed steel drawing field, specifically a kind of high speed steel temperature pulls out technique.
Background technique
High-speed tool steel steel wire is used as producing the material of the tools such as screw tap, drill bit, slotting cutter, occupies weight in tool industry
The position wanted.China is the big producer of main alloy element tungsten, molybdenum, vanadium in high-speed tool steel, is had in terms of H.S.S. production
Advantageous resources supplIes.It is 25% that high-speed steel steel wire, which accounts for entire high-speed steel ratio, and annual output is about ten thousand tons of 4-5.From fast steel
Belong to ledeburite steel, is the high-alloy steel of difficult deformation.For the finished product steel wire of small size, it is necessary to by the drawing of multi-pass
It pulls out, and annealing and later technical process will be repeated after intermediate drawing each time.
Domestic senior engineer's steel wire factory's overwhelming majority uses traditional cold drawing production technology at present, and passage draft is not
More than 20%, the main reason is that the initial carbide size in raw material is larger, these carbide can only be broken when drawing is processed
It is broken and cannot deform.
If draft is excessive, not only steel wire is easily broken, and since broken carbide size is still larger, and meeting exists
In matrix after stretching with generate some micro-pores around the corner angle of carbide.Hole is excessive, by recrystallization annealing
After can not make up completely, the compactness of steel wire will be damaged, not only in subsequent deformation influence plastic deformation
Continuity execute drawing process can not correctly, and not can guarantee the homogeneous of steel wire, to influence high speed steel wire quality.Together
When due to high-speed steel tissue characteristics, in cold drawing process, processing hardening is sharply increased, per pass after cold drawing, it is necessary to anneal
Processing, the cold drawing processing of a time after can carrying out.Cold drawing, annealing repeatedly, undoubtedly reduce processing efficiency, improve into
This.It anneals repeatedly while increasing the decarburization of steel wire surface, oxidation, affect the processing of subsequent tool.
Summary of the invention
The purpose of the present invention is there are problems for above-mentioned, a kind of processing technology of high speed steel steel wire is provided, is led to
Efficiency can be improved in the implementation for crossing such technique, reduces Carbide Particle Cracking, reduces the decarburization of product, guarantees that final products are excellent
Interior tissue and surface quality.
To achieve the above object, the invention provides the following technical scheme:
A kind of high speed steel temperature pulls out technique, comprising the following steps:
(1) high speed steel wire rod using acid cleaning process remove scale on surface, carried out in time after pickling phosphatization and
Saponification process；
(2) treated wire rod, one end are pressed into the thin head of 150-300mm long；
(3) wire rod after the pointing of end is passed through into graphite coating system；
(4) steel wire after the spraying graphite of surface passes through load coil, and by the heating of coil, wire rod temperature reaches
500-700℃；
(5) wire rod passes through hot candied mechanism, and hot candied to be divided into two rooms with mold box, one is used to install drawing mould, another
It is a to be used to collect discarded graphite powder；
(6) by the steel wire after mold, the cooling water in cooling body, the cooling water temperature in cooling body are passed rapidly through
It is maintained at 0 ± 2 DEG C throughout the year, water temperature is adjusted by the cooling unit in outdoor；
(7) collection device collects steel wire bending；
(8) step (2)-(7) are repeated, until close to trimmed size or total draft > 70%.
Further: the graphite coating system includes graphite raw material bucket, graphite coating case and blow device, graphite raw material
For bucket for saving the graphite aqueous solution of normal concentration, graphite solution is muddy, and main component is graphite and molybdenum disulfide, two
The ratio of person is 100:1-100:5, there is the nozzle of regulating flow quantity in graphite coating case, by graphite coating on raw material, purging
Device is used to remove the graphite of raw material excess surface, makes raw material before entering heater, raw material surface does not have extra graphite
Drop.
Further: the drawing mould uses the mold of hard alloy, in the case where the poor quality of raw material surface,
Plycrystalline diamond mold can be used to be produced.
Compared with prior art, the beneficial effects of the present invention are:
It is produced by such technique, improves efficiency, improve the interior tissue of steel wire, reduce Carbide Particle Cracking, dropped
The low decarburization of product, ensure that the excellent interior tissue of final products and surface matter.
Detailed description of the invention
Fig. 1 is the flow chart that a kind of high speed steel temperature pulls out technique.
In figure: 1, graphite coating system；2, heating system；3, hot candied mechanism；4, cooling body；5, collection device.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
A kind of high speed steel wire rod is chosen, having a size of φ 5.5mm, length 1500m；Its ingredient is 1.10Wt%
C, 1.40Wt%W, 9.40Wt%Mo, 3.80Wt%Cr, 1.10Wt%V, 8.0Wt%Co, remaining is Fe, warm drawing process method
It is as follows:
1) pickling is carried out to wire rod, soaking and washing 20min is carried out using the hydrochloric acid solution of 20-30% concentration, then to disk
Phosphatization 10min is saponified 2min to wire rod again thereafter, finally dries to wire rod；
2) wire rod one end pointing branch φ 4.8mm passes through entire hot candied mechanism；
3) equipment is opened, hot candied speed control passes through graphite coating system 1 in 23m/min, wire rod, and stone is uniformly adhered on surface
Ink；
4) wire rod is passed through into coil heats to 650 DEG C, by hot candied mold, hot candied size is φ 5.0mm, passes through cooling
Cooling water in mechanism 4, parcel is collected；
5) φ 5.0mm parcel repeats step 2), until parcel is drawn to φ 3.2mm；
6) the finished product parcel after drawing is made annealing treatment, annealing temperature is 840 DEG C, keeps the temperature 4h, eliminates finished product and is drawing
The tissue defects generated during pulling out；
7) storage is examined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (3)
1. a kind of high speed steel temperature pulls out technique, which comprises the following steps:
(1) high speed steel wire rod removes scale on surface using acid cleaning process, carries out phosphatization and saponification after pickling in time
Processing；
(2) treated wire rod, one end are pressed into the thin head of 150-300mm long；
(3) wire rod after the pointing of end is passed through into graphite coating system；
(4) steel wire after the spraying graphite of surface passes through load coil, and by the heating of coil, wire rod temperature reaches 500-
700℃；
(5) wire rod passes through hot candied mechanism, and hot candied to be divided into two rooms with mold box, one is used to install drawing mould, another use
Graphite powder is discarded in collecting；
(6) by the steel wire after mold, the cooling water in cooling body is passed rapidly through, the cooling water temperature in cooling body is long-term
It is maintained at 0 ± 2 DEG C, water temperature is adjusted by the cooling unit in outdoor；
(7) collection device collects steel wire bending；
(8) step (2)-(7) are repeated, until close to trimmed size or total draft > 70%.
2. a kind of high speed steel temperature according to claim 1 pulls out technique, which is characterized in that the graphite coating system
Including graphite raw material bucket, graphite coating case and blow device, graphite raw material bucket are used to save the graphite aqueous solution of normal concentration, stone
Black solution is muddy, and main component is graphite and molybdenum disulfide, and the ratio of the two is 100:1-100:5, graphite coating case
Inside there is the nozzle of regulating flow quantity, by graphite coating on raw material, blow device is used to remove the graphite of raw material excess surface, makes
For raw material before entering heater, raw material surface does not have extra graphite drop.
3. a kind of high speed steel temperature according to claim 1 pulls out technique, which is characterized in that the drawing mould uses
Plycrystalline diamond mold can be used in the case where the poor quality of raw material surface to be produced in the mold of hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628016.XA CN110238214A (en) | 2019-07-12 | 2019-07-12 | A kind of high speed steel temperature pulls out technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628016.XA CN110238214A (en) | 2019-07-12 | 2019-07-12 | A kind of high speed steel temperature pulls out technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238214A true CN110238214A (en) | 2019-09-17 |
Family
ID=67892114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910628016.XA Pending CN110238214A (en) | 2019-07-12 | 2019-07-12 | A kind of high speed steel temperature pulls out technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN110238214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906162A (en) * | 2020-08-14 | 2020-11-10 | 德清林缘金属制品有限公司 | Warm drawing process for high-tensile-strength steel wire |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5537849A (en) * | 1993-11-29 | 1996-07-23 | Kabushiki Kaisha Kobe Seiko Sho | Continuous dry drawing method and apparatus therefor |
| JPH09164419A (en) * | 1995-12-13 | 1997-06-24 | Hitachi Cable Ltd | Wire warm-drawing device |
| CN101417294A (en) * | 2008-12-04 | 2009-04-29 | 江苏华久特钢工具有限公司 | Low-alloy high speed steel hot-pull technique |
| CN102133582A (en) * | 2011-05-04 | 2011-07-27 | 北京科技大学 | Mold/non-mode combined pulling process and device |
| CN104334291A (en) * | 2012-03-23 | 2015-02-04 | Cpa计算机过程自动化有限公司 | Wire drawing device |
| CN104841705A (en) * | 2015-04-30 | 2015-08-19 | 贵研铂业股份有限公司 | Wire hot drawing heating and wire-drawing die heating attemperator |
| KR20180017563A (en) * | 2016-08-10 | 2018-02-21 | 주식회사 우림알텍 | Drawing apparatus |
| CN207787305U (en) * | 2018-01-17 | 2018-08-31 | 张万林 | A kind of novel metal drawing |
-
2019
- 2019-07-12 CN CN201910628016.XA patent/CN110238214A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5537849A (en) * | 1993-11-29 | 1996-07-23 | Kabushiki Kaisha Kobe Seiko Sho | Continuous dry drawing method and apparatus therefor |
| JPH09164419A (en) * | 1995-12-13 | 1997-06-24 | Hitachi Cable Ltd | Wire warm-drawing device |
| CN101417294A (en) * | 2008-12-04 | 2009-04-29 | 江苏华久特钢工具有限公司 | Low-alloy high speed steel hot-pull technique |
| CN102133582A (en) * | 2011-05-04 | 2011-07-27 | 北京科技大学 | Mold/non-mode combined pulling process and device |
| CN104334291A (en) * | 2012-03-23 | 2015-02-04 | Cpa计算机过程自动化有限公司 | Wire drawing device |
| CN104841705A (en) * | 2015-04-30 | 2015-08-19 | 贵研铂业股份有限公司 | Wire hot drawing heating and wire-drawing die heating attemperator |
| KR20180017563A (en) * | 2016-08-10 | 2018-02-21 | 주식회사 우림알텍 | Drawing apparatus |
| CN207787305U (en) * | 2018-01-17 | 2018-08-31 | 张万林 | A kind of novel metal drawing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906162A (en) * | 2020-08-14 | 2020-11-10 | 德清林缘金属制品有限公司 | Warm drawing process for high-tensile-strength steel wire |
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| PB01 | Publication | ||
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Application publication date: 20190917 |