CN104475465A - Reverse-cooling composite nozzle for water box of high-speed wire rod rolling production line - Google Patents
Reverse-cooling composite nozzle for water box of high-speed wire rod rolling production line Download PDFInfo
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- CN104475465A CN104475465A CN201410716036.XA CN201410716036A CN104475465A CN 104475465 A CN104475465 A CN 104475465A CN 201410716036 A CN201410716036 A CN 201410716036A CN 104475465 A CN104475465 A CN 104475465A
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- nozzle
- straight hole
- inner sleeve
- rod rolling
- casing head
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Abstract
The invention belongs to wire rod rolling equipment and relates to a nozzle for a water-cooling box of a high-speed wire rod rolling production line, in particular to a reverse-cooling composite nozzle for the water box of the high-speed wire rod rolling production line. The nozzle comprises a nozzle tube integrally made of alloy steel 3Cr13; the front end of the nozzle tube is externally provided with a shrinking conical face sequentially provided with three guide grooves, a non-return key groove, a fixing thread and rotary key grooves outside and sequentially provided with a guide pipe connecting channel inside, coaxially connected with a straight hole; the guide pipe connecting channel end of the straight hole is provided a circular step inside; the straight hole is internally provided with a tungsten carbide nozzle inner sleeve fitting the straight hole in diameter; the rear end of the tungsten carbide nozzle inner sleeve is abutted to the step of the straight hole; the front end of the tungsten carbide nozzle inner sleeve extends out the nozzle tube; the central axis of the nozzle tube and the central axis of the nozzle inner sleeve are collinear. The reverse-cooling composite nozzle has the advantages that the tungsten carbide nozzle inner sleeve is in contact with a high-temperature rolled piece, unilateral wear is only 0.65mm while rolling capacity reaches 82000 tons, wear is low, temperature control precision is improved for the rolled pieces, production microstructure is improved, product performance is improved, and piling of the rolled pieces is avoided.
Description
Technical field
The invention belongs to wire rod rolling equipment, particularly relate to a kind of high-speed rod rolling line water cooling box nozzle.
Background technology
High-speed wire rolling production line arranges water cooling box, in water cooling box, establishes reverse cooling jet and air purge spray nozzle to carry out cooling processing to rolled piece.In the operation of rolling, rolled piece is by the nozzle in water cooling box, by cut-out governing water yield size, to control rolled piece temperature, makes wire rod obtain tissue, the performance of expection.Current, the nozzle used makes hollow tube by steel alloy 3Cr13 monoblock cast, processing and heat treatment, body front end peripheral hardware is containing taper surface, nozzle rear end peripheral hardware retaining thread, inside establish tubes connection groove, straight hole, extend out conical water outlet, straight hole respectively with tubes connection groove, extend out conical water outlet and be coaxially connected.Problems existing is in high temperature rolling process, nozzle contacts with the high temperature rolled piece of high-speed cruising, spray nozzle front end contact site wear extent is very large, when steel transportation amount is at about 1.2 ten thousand tons, wear extent can reach 2-3mm, and nozzle useless cannot regulating pondage size, and rolled piece temperature is out of hand, the cooling effect of rolled piece is poor, causes rolled piece qualification rate low; And excessive wearing and tearing can affect the direct motion of rolled piece, easily cause milling train to pile steel fault, equipment operation ratio is low, frequently changes nozzle, and spare parts consumption is large, greatly increases production cost.
Summary of the invention
In order to overcome the defect of prior art, the object of the present invention is to provide the reverse cooling combined nozzle of a kind of high-speed rod rolling line water tank, nozzle wear is little, reduces and changes the frequency and production cost, reduces heap steel fault, stablizes rolled piece quality, improve equipment operation ratio.
The reverse cooling combined nozzle of high-speed rod rolling line water tank, comprise the nozzle body be made up of steel alloy 3Cr13 entirety, body front end peripheral hardware is containing taper surface, peripheral hardware three lobe guiding gutter successively on it, retaining keyway, retaining thread, rotate keyway, tubes connection groove and straight hole coaxial line is inside established to be connected, be characterized in establishing ring-shaped step in described straight hole tubes connection groove end, the tungsten carbide nozzle inner sleeve of its apertures is established in straight hole, nozzle inner sleeve rear end is resisted against on straight hole step, body is stretched out in front end, body, the central axis of nozzle inner sleeve on the same line, extend the life-span in gap between recoil nozzle entrance and recoil nozzle.During use, nozzle is fixed on nozzle holder, and coordinates with recoil nozzle casing, and cooling water is contrary with the direction of workpiece motion s, oppositely cools.
The present invention improves further, and described nozzle inner sleeve is connected and composed by more piece sleeve pipe and casing head, and sleeve structure shape is identical, and sleeve outer is consistent with the diameter of ring-shaped step end face, and casing inner diameter is consistent with straight hole aperture; Casing head external diameter is slightly larger than the diameter of ring-shaped step end face, and casing head adopts heat expansion method to be embedded in body straight hole, establishes tubaeform delivery port and be connected straight hole in casing head, connects straight hole and is coaxially connected with delivery port.
The present invention improves further, and described casing head is suitable with casing length, and casing head is 1:(5-6 with the ratio of sleeve pipe overall length).
Compared with prior art, advantage is novel, and structure letter is gathered, rationally; The present invention adopts combining nozzle, tungsten carbide nozzle inner sleeve contacts with high temperature rolled piece, steel transportation amount reaches 8.2 ten thousand ton hours, and uneven wear is only 0.65mm, and wear extent is very little, can continue to use, long service life, improves rolled piece temperature control precision, the tissue of improving product, performance, stablize rolled piece quality, avoid occurring heap steel fault; Nozzle exchange number of times reduces simultaneously, and spare parts consumption reduces, and production cost reduces.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of the reverse cooling combined nozzle of high-speed rod rolling line water tank;
Fig. 2 is side view of the present invention;
Fig. 3 is that the present invention uses installation diagram.
In figure: 100-nozzle body, 101-body taper surface, 102-retaining thread, 103-tubes connection groove, 104-straight hole, 105-ring-shaped step, 106-rotate keyway, 107-retaining keyway, 108-tri-lobe guiding gutter, 200-nozzle inner sleeve, 201-sleeve pipe, 202-casing head, 203-loudspeaker delivery port, 204-connects straight hole, 300-nozzle holder, 400-recoil nozzle casing.
Detailed description of the invention
Below in conjunction with embodiment to the present invention's row detailed description further.
By Fig. 1, 2 can find out, the reverse cooling combined nozzle of high-speed rod rolling line water tank, comprise the nozzle body 100 be made up of steel alloy 3Cr13 entirety, body front end peripheral hardware is containing taper surface 101, peripheral hardware three lobe guiding gutter 108 successively on it, retaining keyway 107, retaining thread 102, rotate keyway 106, tubes connection groove 103 and straight hole 104 coaxial line is inside established to be connected, ring-shaped step 105 is established in described straight hole tubes connection groove end, the tungsten carbide nozzle inner sleeve 200 of its apertures is established in straight hole, nozzle inner sleeve rear end is resisted against on straight hole step, body is stretched out in front end, body, the central axis of nozzle inner sleeve on the same line, extend the life-span in gap between recoil nozzle entrance and recoil nozzle.During use, nozzle is fixed on nozzle holder 300, and coordinates with recoil nozzle casing 400, and cooling water is contrary with the direction of workpiece motion s, oppositely cools.
Be it can also be seen that by Fig. 1,2, described nozzle inner sleeve 200 is connected and composed by more piece sleeve pipe 201 and casing head 202, and sleeve structure shape is identical, and sleeve outer is consistent with the diameter of ring-shaped step 105 end face, and casing inner diameter is consistent with straight hole 104 aperture; Casing head external diameter is slightly larger than the diameter of ring-shaped step end face, and casing head adopts heat expansion method to be embedded in body straight hole, establishes tubaeform delivery port 203 and be connected straight hole 204 in casing head, connects straight hole and is coaxially connected with delivery port.
Be it can also be seen that by Fig. 1, described casing head 202 is suitable with sleeve pipe 201 length, and casing head is 1:(5-6 with the ratio of sleeve pipe overall length).
Claims (3)
1. the reverse cooling combined nozzle of high-speed rod rolling line water tank, comprise the nozzle body (100) be made up of steel alloy 3Cr13 entirety, body front end peripheral hardware is containing taper surface (101), peripheral hardware three lobe guiding gutter (108) successively on it, retaining keyway (107), retaining thread (102), rotate keyway (106), tubes connection groove (103) and straight hole (104) coaxial line is inside established to be connected, it is characterized in that establishing ring-shaped step (105) in described straight hole tubes connection groove end, the tungsten carbide nozzle inner sleeve (200) of its apertures is established in straight hole, nozzle inner sleeve rear end is resisted against on straight hole step, body is stretched out in front end, body, the central axis of nozzle inner sleeve on the same line.
2. the reverse cooling combined nozzle of high-speed rod rolling line water tank according to claim 1, it is characterized in that described nozzle inner sleeve (200) is connected and composed by more piece sleeve pipe (201) and casing head (202), sleeve structure shape is identical, sleeve outer is consistent with the diameter of ring-shaped step (105) end face, and casing inner diameter is consistent with straight hole (104) aperture; Casing head external diameter is slightly larger than the diameter of ring-shaped step end face, and casing head adopts heat expansion method to be embedded in body straight hole, establishes tubaeform delivery port (203) and be connected straight hole (204) in casing head, connects straight hole and is coaxially connected with delivery port.
3. the reverse cooling combined nozzle of high-speed rod rolling line water tank according to claim 2, it is characterized in that described casing head (202) is suitable with sleeve pipe (201) length, casing head is 1:(5-6 with the ratio of sleeve pipe overall length).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716036.XA CN104475465A (en) | 2014-12-02 | 2014-12-02 | Reverse-cooling composite nozzle for water box of high-speed wire rod rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716036.XA CN104475465A (en) | 2014-12-02 | 2014-12-02 | Reverse-cooling composite nozzle for water box of high-speed wire rod rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104475465A true CN104475465A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410716036.XA Pending CN104475465A (en) | 2014-12-02 | 2014-12-02 | Reverse-cooling composite nozzle for water box of high-speed wire rod rolling production line |
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| CN (1) | CN104475465A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989007993A1 (en) * | 1988-03-02 | 1989-09-08 | Ashlow Engineering Limited | Pressure pipe |
| CN2524851Y (en) * | 2001-08-22 | 2002-12-11 | 任吉堂 | Strong through water cooler for hot rolling rod line material production line |
| CN1817493A (en) * | 2006-03-10 | 2006-08-16 | 叶林 | Opening high-efficient water-cooling nozzle |
| CN201350462Y (en) * | 2009-01-13 | 2009-11-25 | 叶林 | Hot-rolled wire rod cooler |
| CN201376006Y (en) * | 2009-04-16 | 2010-01-06 | 东阳市朋诚科技有限公司 | Composite cooling nozzle of water tank |
| KR20100062457A (en) * | 2008-12-02 | 2010-06-10 | 주식회사 포스코 | Wire-rod cooling apparatus |
| CN102989798A (en) * | 2012-11-28 | 2013-03-27 | 江苏永钢集团有限公司 | Laminar water-cooling device |
| CN204486484U (en) * | 2014-12-02 | 2015-07-22 | 马钢(集团)控股有限公司 | The reverse cooling combined nozzle of high-speed rod rolling line water tank |
-
2014
- 2014-12-02 CN CN201410716036.XA patent/CN104475465A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989007993A1 (en) * | 1988-03-02 | 1989-09-08 | Ashlow Engineering Limited | Pressure pipe |
| CN2524851Y (en) * | 2001-08-22 | 2002-12-11 | 任吉堂 | Strong through water cooler for hot rolling rod line material production line |
| CN1817493A (en) * | 2006-03-10 | 2006-08-16 | 叶林 | Opening high-efficient water-cooling nozzle |
| KR20100062457A (en) * | 2008-12-02 | 2010-06-10 | 주식회사 포스코 | Wire-rod cooling apparatus |
| CN201350462Y (en) * | 2009-01-13 | 2009-11-25 | 叶林 | Hot-rolled wire rod cooler |
| CN201376006Y (en) * | 2009-04-16 | 2010-01-06 | 东阳市朋诚科技有限公司 | Composite cooling nozzle of water tank |
| CN102989798A (en) * | 2012-11-28 | 2013-03-27 | 江苏永钢集团有限公司 | Laminar water-cooling device |
| CN204486484U (en) * | 2014-12-02 | 2015-07-22 | 马钢(集团)控股有限公司 | The reverse cooling combined nozzle of high-speed rod rolling line water tank |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |