CN202322926U - Nozzle installation structure of cast steel roll heat treatment spray quenching machine - Google Patents
Nozzle installation structure of cast steel roll heat treatment spray quenching machine Download PDFInfo
- Publication number
- CN202322926U CN202322926U CN2011204183287U CN201120418328U CN202322926U CN 202322926 U CN202322926 U CN 202322926U CN 2011204183287 U CN2011204183287 U CN 2011204183287U CN 201120418328 U CN201120418328 U CN 201120418328U CN 202322926 U CN202322926 U CN 202322926U
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- Prior art keywords
- nozzle
- chutes
- nozzles
- spray quenching
- hole
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Abstract
The utility model discloses a nozzle installation structure of a cast steel roll heat treatment spray quenching machine. The structure comprises a nozzle installation frame provided with a plurality of nozzles, the nozzle installation frame is provided with chutes, and the nozzles are detachably arranged in the chutes and can slide along the chutes; and a wind pressure pipe joint, a water pressure pipe joint and a switching valve are separately arranged on each nozzle. According to the structure, the number of the nozzles can be increased and the distance between the nozzles can be adjusted according to the roll body length and the bottom width and the depth of each hole-type chute in the roll spray quenching process; the wind pressure, the water pressure and the switching valve of each nozzle can be separately controlled, so that the aims of controlling the spray quenching strength at the bottom of each special-shaped hole-type chute and controlling the consistency of the cooling speeds of the bottoms of the hole-type chutes are fulfilled, consistent metallographic structures and mechanical properties of the bottoms of the hole-type chutes are ensured, and the hardness and the hardness uniformity of the bottoms of the special-shaped hole-type chutes meet the requirements.
Description
Technical field
The utility model relates to a kind of cast steel roll thermal treatment spray machine nozzle mounting structure of quenching, and particularly relates to pearlite ductile iron roll thermal treatment spray that a kind of large-scale structural mill the uses machine nozzle mounting structure of quenching.
Background technology
Metallurgical roller is different according to Application Areas and working conditions, requires all to have different to its working lining hardness, wear resistance, fatigue resistence, antistrip performance and roll neck with heart portion break resistance.The pearlite ductile iron roll (BD2) that the large-scale structural mill of present domestic hot rolling is used is used for second frame of structural mill of the heavy rail of rolling 60kg/m, 55kg/m; Roller neck and heart portion require to have higher heat shock resistance, break resistance, and its body of roll is that section groove requirement bottom land has higher wear resistance, thermal fatigue resistance and antistrip performance.Therefore; The pearlite ductile iron roll foundryman's fever that structural mill is used is handled; More advanced thermal treatment process is to carry out high temperature austenite heat-transmission processing, the fog quenching+temper of coming out of the stove after the roller body working lining roughing (thick open cell type) now; The metallographic structure of control pass bottom land working lining is the tempered sorbite of band position phase; To improve the hardness and the uniformity of hardness of bottom land working lining, reduce the radial stiffness drop, reach the requirement of heat resistanceheat resistant crackle, thermal fatigue resistance and antistrip performance, rolling wear resistance.
The pearlite ductile iron roll that the hot rolling structural mill is used carries out high temperature surface fog quenching+tempering heat treatment process; The pearlite ductile iron roll is in process is quenched in high-temperature heat treatment, spray, and the spray degree of hardening of its structural mill pearlite ductile iron section groove bottom land, hardness landing and depth of hardening zone are important technical problems.German western mark company three injector configuration gear that at present domestic comparatively advanced a kind of roll spray quenches that machine nozzle arranges that system generally adopts, three nozzle parallel connections and nozzle fixed interval; The shared airduct of three nozzles, water pipe and shared airduct valve, aqueduct valve and a wind1 meter, water pressure gauge.Some problems below this three injector configuration gear exist:
Three nozzles have only a tracheae valve and aqueduct valve, can not control closing or opening of each nozzle; Three injector configuration spacings are fixed, and the spray intensity of quenching is the same, and pass bottom land speed of cooling is consistent.The section groove of the pearlite ductile iron roll that the large-scale structural mill of hot rolling is used; Width, the depth disparity of each pass are bigger; Cause the speed of cooling and the metallographic structure of pass bottom land to differ greatly; The hardness and the uniformity of hardness of pass bottom land are inconsistent, can not satisfy pass bottom land heat resistanceheat resistant crackle, antistripping and wear resistance requirement.
The utility model content
The purpose of the utility model is exactly the weak point to above-mentioned prior art; Provide a kind of cast steel roll thermal treatment to spray the machine nozzle mounting structure of quenching, in roll fog quenching process, can increase nozzle quantity according to width, the degree of depth of roller body length and pass bottom land; The adjustment injector spacing; And blast, hydraulic pressure and opening-closing valve that can each nozzle of independent control, to reach the control section groove bottom land spray intensity of quenching, the purpose that pass bottom land speed of cooling is consistent; And guarantee that the metallographic structure of pass bottom land is consistent with mechanical property, make the hardness of section groove bottom land and uniformity of hardness meet the requirements.
The purpose of the utility model realizes through following technical proposals:
The machine nozzle mounting structure of quenching is sprayed in a kind of cast steel roll thermal treatment; Comprise the nozzle erecting frame that is provided with plurality of nozzles, said nozzle erecting frame is provided with chute, and nozzle detachably is installed on the chute; And can slide along chute, each nozzle is provided with independent airduct, water pipe and opening-closing valve.
The beneficial effect of the utility model is: in roll fog quenching process; Can increase nozzle quantity according to the width of roller body length and pass bottom land, the degree of depth, adjustment injector spacing, and blast, hydraulic pressure and opening-closing valve that can each nozzle of independent control; Spray the intensity of quenching to reach control section groove bottom land; The purpose that pass bottom land speed of cooling is consistent, and guarantee that the metallographic structure of pass bottom land is consistent with mechanical property, make the hardness of section groove bottom land and uniformity of hardness meet the requirements.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 be among Fig. 1 A to partial schematic diagram.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
Like Fig. 1, Fig. 2 and shown in Figure 3; The machine nozzle mounting structure of quenching is sprayed in a kind of cast steel roll thermal treatment; Comprise the nozzle erecting frame 4 that is provided with plurality of nozzles 1, said nozzle erecting frame 4 is provided with chute 5, and each nozzle 1 is provided with independent airduct 2, water pipe 3 and opening-closing valve (not drawing among the figure); Airduct 2 passes the chute 5 on the nozzle erecting frame 4 with water pipe 3; And can move freely in the horizontal direction along chute 5, airduct 2, water pipe 3 connect tensimeter, stopping valve, ball valve respectively successively through flexible pipe, are connected at last on gas-holder, the water tank.
The utility model is in roll fog quenching process; Can increase nozzle quantity according to the width of roller body length and pass bottom land, the degree of depth, adjustment injector spacing, and blast, hydraulic pressure and opening-closing valve that can each nozzle 1 of independent control; Spray the intensity of quenching to reach control section groove bottom land; The purpose that pass bottom land speed of cooling is consistent, and guarantee that the metallographic structure of pass bottom land is consistent with mechanical property, make the hardness of section groove bottom land and uniformity of hardness meet the requirements.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (1)
1. the machine nozzle mounting structure of quenching is sprayed in a cast steel roll thermal treatment; Comprise the nozzle erecting frame that is provided with plurality of nozzles; It is characterized in that: said nozzle erecting frame is provided with chute; Nozzle detachably is installed on the chute, and can slide along chute, and each nozzle is provided with independent airduct, water pipe and opening-closing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204183287U CN202322926U (en) | 2011-10-28 | 2011-10-28 | Nozzle installation structure of cast steel roll heat treatment spray quenching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204183287U CN202322926U (en) | 2011-10-28 | 2011-10-28 | Nozzle installation structure of cast steel roll heat treatment spray quenching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322926U true CN202322926U (en) | 2012-07-11 |
Family
ID=46434913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204183287U Expired - Fee Related CN202322926U (en) | 2011-10-28 | 2011-10-28 | Nozzle installation structure of cast steel roll heat treatment spray quenching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322926U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195302A (en) * | 2014-08-21 | 2014-12-10 | 宜兴市永昌轧辊有限公司 | Novel jet quenching device for cold rolls |
| CN104846169A (en) * | 2015-06-10 | 2015-08-19 | 唐山市裕龙冶金轧辊有限公司 | Roller spray quenching equipment |
| CN105886722A (en) * | 2016-06-21 | 2016-08-24 | 中冶南方武汉钢铁设计研究院有限公司 | Cooling speed accurately controlled quenching device and quenching method |
| CN108202084A (en) * | 2018-03-20 | 2018-06-26 | 湖州中杭轧辊有限公司 | A kind of middle-size and small-size roll of multipurpose sprays machine of quenching |
| CN112795740A (en) * | 2020-12-16 | 2021-05-14 | 中钢集团邢台机械轧辊有限公司 | Heat treatment method for angle steel straightening roller and special quenching equipment for heat treatment |
| CN112797802A (en) * | 2020-12-30 | 2021-05-14 | 二重（德阳）重型装备有限公司 | Air cooling device for supporting roll |
| CN113481353A (en) * | 2021-05-31 | 2021-10-08 | 中钢集团邢台机械轧辊有限公司 | Quenching method of alloy ductile iron roller |
-
2011
- 2011-10-28 CN CN2011204183287U patent/CN202322926U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195302A (en) * | 2014-08-21 | 2014-12-10 | 宜兴市永昌轧辊有限公司 | Novel jet quenching device for cold rolls |
| CN104846169A (en) * | 2015-06-10 | 2015-08-19 | 唐山市裕龙冶金轧辊有限公司 | Roller spray quenching equipment |
| CN105886722A (en) * | 2016-06-21 | 2016-08-24 | 中冶南方武汉钢铁设计研究院有限公司 | Cooling speed accurately controlled quenching device and quenching method |
| CN108202084A (en) * | 2018-03-20 | 2018-06-26 | 湖州中杭轧辊有限公司 | A kind of middle-size and small-size roll of multipurpose sprays machine of quenching |
| CN112795740A (en) * | 2020-12-16 | 2021-05-14 | 中钢集团邢台机械轧辊有限公司 | Heat treatment method for angle steel straightening roller and special quenching equipment for heat treatment |
| CN112797802A (en) * | 2020-12-30 | 2021-05-14 | 二重（德阳）重型装备有限公司 | Air cooling device for supporting roll |
| CN113481353A (en) * | 2021-05-31 | 2021-10-08 | 中钢集团邢台机械轧辊有限公司 | Quenching method of alloy ductile iron roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20161028 |