CN1817557A - Production of special sectional flate steel for air-conditioner vane - Google Patents
Production of special sectional flate steel for air-conditioner vane Download PDFInfo
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- CN1817557A CN1817557A CN 200610038894 CN200610038894A CN1817557A CN 1817557 A CN1817557 A CN 1817557A CN 200610038894 CN200610038894 CN 200610038894 CN 200610038894 A CN200610038894 A CN 200610038894A CN 1817557 A CN1817557 A CN 1817557A
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Abstract
A technology for manufacturing the shaped flat steel used for the blade of air conditioner includes such steps as pre-treating square billet, rolling to become flat billet, two-roller cold rolling, 10-ton drawing twice, cleaning surface, straightening, cutting short according to needed length, antirusting and packing.
Description
Technical field
The present invention relates to a kind of production method of special sectional flate steel for air-conditioner vane.Blade is widely used in the production of air conditioning compressor blade with special sectional flate steel.The band steel section is anisopleural obform body, and dimensional tolerance and surface quality require very high.It is that heat treatment deformation is little that inherent quality requires, and retained austenite is few after the heat treatment, and dimensional stability is good, wear-resisting, corrosion-resistant in blade military service process.
Background technology
Along with improving constantly of people's lives, the demand of the air conditioner that can improve working environment, living environment is increased day by day.The critical component of air conditioner is a compressor, and the vital part in the compressor is a blade, and its performance should be able to satisfy in the stronger medium of chemical attack, under the situation of long-term operation, must keep dimensionally stable, and wearability will be got well under higher temperature.At present, various countries have successfully adopted the W6M05Cr4V2 high-speed steel aspect blade material, but W6MO5Cr4V2 composition range broad, how rationally control just can reach the requirement of blade with steel, and this is a key problem in technology.In addition, produce abroad this steel complex manufacturing, maintain secrecy, Japan has developed and had just succeeded in 15 years, Korea S repeatedly manufactures experimently, all fail, compare with them, our production equipment also is nothing like them, therefore, want the not high equipment of our existing precision of research and utilization, adopt which type of process route, produce the product of degree of precision, this is again a key problem in technology.More than 2 points, be exactly whereabouts of the present invention.
Summary of the invention
Technical problem to be solved by this invention: be to provide the existing conventional equipment of a kind of usefulness just can produce the production method of advanced, fine quality special sectional flate steel for air-conditioner vane.
For solving the technical scheme that above technical problem adopts be:
1, the chemical composition of special sectional flate steel for air-conditioner vane being proposed following empirical equation is controlled: promptly
C≤0.85％………………………………………………………(1)
(W％)+1.9(Mo％)+1.8(Cr％)+6(V％)-30(C％)≥7.5………(2)
In order to guarantee inherent quality.
2, propose a following production process route, that is: utilize conventional equipment to carry out hot rolling → cold rolling → cold drawing → cleaning → rust prevention packaging, guarantee dimensional accuracy and surface quality.
The effect that adopts above technical scheme to produce is conspicuous: reached the production effect of expection, inner carbide is tiny, and evenly the heat treatment size distortion is little, has only 1/3 of Japan; Retained austenite is few, and Japan is 4.9%, and we are 2.5～3.1%, reach advanced world standards.Because the heat treatment size distortion is little, so processing capacity is few after the heat treatment; Because retained austenite is few, so dimensional stability is good.In addition, not yielding in the process under arms, appearance and size, surface quality have all reached specification requirement.
Description of drawings
Fig. 1 is a finished product cross-sectional view of the present invention.
Fig. 2 is the special-purpose pass schematic diagram of steel aligning.
Among the figure: 1, arc R 2, fillet r 3, thickness T 4, width W
The specific embodiment
When producing special sectional flate steel for air-conditioner vane, adopt the following technological process of production with this method:
Treated good square billet → on 250 * 5 open-train mills, roll into slab and annealing → carry out cold rolling and anneal with 200 millimeter two cold mill, then carrying out on 10 tons of vertical bar drawbench the drawing first time and annealing → on 10 tons of vertical bar drawbench, carry out being drawn to second time finished size → removals surface dirty → at 9 enterprising parallel planes of roller cantilevered straightener and side aligning, and by preseting length cut off one by one → to the finished product apparent size check → antirust, pack, put in storage.Corresponding above flow process, accomplish following 6 methods of controlling:
1, the control of hot rolling slab size (millimeter):
(thickness T+1～1.5)
-0.30 + 0.10* (width W+1～1.5)
-0.40 + 0.20* r0.80～1.00
2, the control (millimeter) of drawing amount before the finished product:
(thickness T+0.3～0.5)
-0.10 + 0.10* (width W+0.3～0.5)
-0.10 + 0.10* r0.4～0.6 * R ± 0.2
3, the control of intermediate annealing process
For making the special sectional flate steel surface not oxidized, so with its tubulation seals, and under 860 ℃ of temperature, annealed 8～12 hours, when less than 300 ℃, go out pipe.
4, control the surface is dirty:
With 15～25% aqueous slkalis the finished product special sectional flate steel is cleaned, the temperature of aqueous slkali is 70～100 ℃.
5, glacing flatness is controlled:
Curved and the lateral bending with the disposable aligning of the special pass plane of Fig. 2, and can not injure arc surface.
6, mould and die accuracy is controlled:
Mould and die accuracy is the important means that guarantees end product quality, and mould and die accuracy control main points are before each drawing, and the mould pass of the corresponding product size of drawing is accurately measured.
The tolerance dimension of end product such as Fig. 1: circular arc R ± 0.1mm: fillet r≤0.30mm, thickness T ± 0.05mm, width W+0.10/-0mm.
Claims (1)
1, a kind of production method of special sectional flate steel for air-conditioner vane is characterized in that: this method adopts the following technological process of production:
Treated good square billet → on 250 * 5 open-train mills, roll into slab and annealing → carry out cold rolling and anneal with 200 millimeter two cold mill, then carrying out on 10 tons of vertical bar drawbench the drawing first time and annealing → on 10 tons of vertical bar drawbench, carry out being drawn to second time finished size → removals surperficial dirty → align at 9 enterprising parallel planes of roller cantilevered straightener and side, and cut off one by one → the finished product apparent size is checked → antirust, packing, warehouse-in by preseting length, and accomplish the method for controlling of 7 aspects:
(1) use the empirical equation that the chemical analysis of special sectional flate steel is rationally controlled:
C≤0.85％ ……………………………………………………(1)
(W％)+1.9(Mo％)+1.8(Cr％)+6(V％)-30(C％)≥7.5………(2)
(2) control of hot rolling slab size (millimeter):
(3) control (millimeter) of drawing amount before the finished product:
(4) control of intermediate annealing process:
For making the special sectional flate steel surface not oxidized, put its tubulation seals, and under 860 ℃ of temperature, annealed 8～12 hours, when less than 300 ℃, go out pipe;
(5) control the surface is dirty:
With 15～25% aqueous slkalis the finished product special sectional flate steel is cleaned, the temperature of aqueous slkali is 70～100 ℃:
(6) glacing flatness is controlled:
Curved and the lateral bending with the disposable aligning of special pass plane, and can not injure arc surface;
(7) mould and die accuracy is controlled:
Before each drawing, the mould pass of the corresponding product size of drawing is accurately measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100388949A CN100453259C (en) | 2006-03-16 | 2006-03-16 | Production of special sectional flate steel for air-conditioner vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100388949A CN100453259C (en) | 2006-03-16 | 2006-03-16 | Production of special sectional flate steel for air-conditioner vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1817557A true CN1817557A (en) | 2006-08-16 |
| CN100453259C CN100453259C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100388949A Expired - Fee Related CN100453259C (en) | 2006-03-16 | 2006-03-16 | Production of special sectional flate steel for air-conditioner vane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195547A (en) * | 2015-09-07 | 2015-12-30 | 闫建平 | Production method of small-batch cold-drawn profiled bars |
| CN107350740A (en) * | 2017-06-19 | 2017-11-17 | 江阴兴澄特种钢铁有限公司 | A kind of good fine grinding rod cold drawing production technology of high intensity high dimensional accuracy axiality |
| CN109201766A (en) * | 2018-10-17 | 2019-01-15 | 石家庄龙兴新材料科技有限公司 | Essence for processing slip sheet of air conditioner compressor pulls out band steel and preparation method thereof |
| CN114029355A (en) * | 2021-11-09 | 2022-02-11 | 江苏省福达特种钢有限公司 | Preparation method of high-speed steel for drill bit cutter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3174457B2 (en) * | 1994-05-17 | 2001-06-11 | 株式会社日立製作所 | Continuous casting direct hot rolling equipment and rolling method |
| CN1434136A (en) * | 2002-01-22 | 2003-08-06 | 杜建平 | Straitheming annealing method for flat and square steel material |
| CN100425395C (en) * | 2004-11-09 | 2008-10-15 | 广东南方特种铜材有限公司 | Method for preparing anode copper ball and apparatus thereof |
| CN1613599A (en) * | 2004-11-26 | 2005-05-11 | 刘志文 | Casting and rolling machining process for circular steel structure |
-
2006
- 2006-03-16 CN CNB2006100388949A patent/CN100453259C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195547A (en) * | 2015-09-07 | 2015-12-30 | 闫建平 | Production method of small-batch cold-drawn profiled bars |
| CN107350740A (en) * | 2017-06-19 | 2017-11-17 | 江阴兴澄特种钢铁有限公司 | A kind of good fine grinding rod cold drawing production technology of high intensity high dimensional accuracy axiality |
| CN107350740B (en) * | 2017-06-19 | 2019-04-26 | 江阴兴澄特种钢铁有限公司 | A kind of fine grinding stick cold drawing production technology that high intensity high dimensional accuracy concentricity is good |
| CN109201766A (en) * | 2018-10-17 | 2019-01-15 | 石家庄龙兴新材料科技有限公司 | Essence for processing slip sheet of air conditioner compressor pulls out band steel and preparation method thereof |
| CN114029355A (en) * | 2021-11-09 | 2022-02-11 | 江苏省福达特种钢有限公司 | Preparation method of high-speed steel for drill bit cutter |
| CN114029355B (en) * | 2021-11-09 | 2024-10-15 | 江苏省福达特种钢有限公司 | Preparation method of high-speed steel for drill bit cutter |
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|---|---|
| CN100453259C (en) | 2009-01-21 |
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