CN109423542A - The outer spray cooling device of steel pipe off-line quenching and method - Google Patents
The outer spray cooling device of steel pipe off-line quenching and method Download PDFInfo
- Publication number
- CN109423542A CN109423542A CN201710779271.5A CN201710779271A CN109423542A CN 109423542 A CN109423542 A CN 109423542A CN 201710779271 A CN201710779271 A CN 201710779271A CN 109423542 A CN109423542 A CN 109423542A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- cooling
- spray
- nozzle
- flow
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
Abstract
The invention discloses a kind of steel pipe off-lines to quench outer spray cooling device and method.The outer spray cooling means is first, and outer spray cooling device first has to be demarcated before coming into operation, and determines the corresponding flow of different opening at various pressures；Second, before production starts, according to the pressure and flow of setting, flow control valve is opened to corresponding aperture by controller, opens the switch valve of inlet pipeline；Water fender of the gear between steel pipe and spray box is closed in third, controller control, and steel pipe feeding after steel pipe is sent into rotary stand by Si Huidun lever, starts rotating steel tube；4th, water fender is opened, quenching cooling is carried out to steel pipe, in cooling procedure if there is flowed fluctuation, controller keeps stability of flow to flow control valve real-time perfoming closed-loop control；5th, controller closes water fender after current steel pipe is cooling, and cooling water valve is kept it turned on, and steel pipe is sent into cooling bed roller by Si Huidun lever by steel pipe blanking.
Description
Technical field
A kind of a kind of quenched the present invention relates to steel pipe heat treatment technics more particularly to steel pipe off-line outer spray cooling device and
Method.
Background technique
There are four master operations on steel pipe heat-treatment lines: quenching stove heating, water quenching, tempering stove heating, thermal straightening, therein
Water quenching process, which will generally use, to carry out the type of cooling drenched outside interior spray after steel pipe compression rotation, and China and foreign countries' shower device generally uses low
Press water drenching mode.
And water quenching often becomes bottleneck process, the main reason is that the outer cool equipment of water quenching used at present, either slit
Or spray tube, generallys use the liquid distribution of fixed low pressure, cooling capacity is limited, can not effectively mention enlargement discharge
High cooldown rate causes production efficiency not high, materials in the tube exist so that being far longer than the time of other processes the time required to steel pipe water quenching
The furnace time is longer, and surface oxidation is serious, and energy consumption is also big.
When using leaching mode is quenched outside interior spray, though flow is adjustable on the outer water drenching length direction of fixed low pressure, but
Difference is little in the cooling rate of appearance, and interior water spray flows to the other end from steel pipe one end, and the cooling rate of interior table differs greatly, this is resulted in
The cooling rate difference of steel pipe different location, so as to cause steel pipe it is quenched after strength fluctuation it is big, steel strength fluctuation generally 80 ~
150MPa, and water cooling rear portion be in charge of material bending it is excessively serious, materials in the tube are directly spent still exceeded after aligning, need to handle again again,
Increase production cost.
For line pipe, the structural tube etc. of series of low-carbon, it is desirable that slower cooling rate, it is only necessary to which the flow of very little, fixation are low
The outer water spray of pressure will be very uneven, and bending is serious after water cooling, easily damage rotation facility, and can not be successfully conveying and need people
Work intervention, so that production efficiency is lower.
Chinese patent CN2307006Y discloses a kind of Water spray device for steel pipe outside surface, and the fixation using single cooling water pipe is low
Pressure spray pattern, cooling rate are limited；The device nozzle bore is larger, it is difficult to ensure that uniform fluid flow under low wash water, especially
The steel pipe of Large Diameter Pipeline is difficult to obtain effective uniformly cooling；Although water injector uses length direction from Figure of description
Segmental structure, but there is no the descriptions of application method, actually under low pressure since cooling velocity is limited, even if sectional-regulated stream
Amount is also extremely difficult to adjust the effect of cooling rate.
Chinese patent CN201046978Y discloses a kind of Double-venting external sprayer, using the fixation low pressure of double cooling water pipe
Pattern is sprayed, cooling rate is lower, and overall length can not carry out segmentation flow and adjust, and not be suitable for the quenching of tempered steel pipe.
Chinese patent CN101490286A discloses a kind of cooling method of steel pipe, using double laminar flow slit pattern, slit
Laminar flow will form stable curtain dress water flow, and length and range of flow are limited, and length direction flow is non-adjustable, is not suitable for adjusting
The quenching of matter steel pipe is seen from its description and is also only applicable to specific wall thickness/outer diameter ratio steel pipe.
Patent CN202705412U discloses a kind of outer water drenching spray equipment of steel pipe quenching, using double cooling water pipe
Low-pressure spray pattern is arranged distributed amongst water tank, can play the role of stationary flow, but valve group used is more, whole to tie
Structure is complicated, and manufacturing cost is higher；Although spray equipment uses length direction segmental structure from Figure of description, also it is equipped with
Flow control valve, but from branch pipe flow control valve from the point of view of description mainly switch valve effect, for the selection of spray section,
Overall length flow control is not described, actually under low pressure since cooling velocity is limited, even if sectional-regulated flow
It is extremely difficult to adjust the effect of cooling rate.
Patent CN204474716U discloses a kind of outer spray equipment of quenching press, is sprayed using the low pressure of double cooling water pipe
Pattern is drenched, equal pressure tank counterpressure is set, although uniform pressure and flow can be provided to tube body overall length, once device
Pressure is that fixation is non-adjustable, and overall length flow is also substantially stationary, it is difficult to be suitable for quenched quenching after the completion of manufacture.
The above steel pipe off-line quenching unit mainly using the outer spray form of fixed low pressure water drenching, cooling rate it is lower and
It is limited, the quenched quenching of spray in outer leaching can not be suitable for, can not effectively shorten the steel pipe cool time.Meanwhile double flow pressure
Nonadjustable configuration, it is difficult to meet the quenching technical demand of various specifications steel pipe；Since double rows of nozzles is arranged symmetrically, for tubule
Diameter steel pipe can only meet cooling technique using single row of nozzles, it is easier to cause circumferential inhomogeneous cooling even.
Summary of the invention
The purpose of the present invention is to provide a kind of steel pipe off-lines to quench outer spray cooling device and method, the outer spray cooling device
And method can implement Quick uniform cooling to steel pipe circumferential and axial, overall length is straight after quenching steel pipe and performance is equal
It is even, and greatly shorten bottleneck process -- the time of water quenching, to improve production efficiency.
In order to achieve the above technical purposes, the present invention adopts the following technical scheme:
A kind of steel pipe off-line quenching is outer to spray cooling device, including multiple spray boxs, the spray box are set to the rotary stand of placing steel tubes
Top, each spray box front end are provided with multiple rows of nozzle, and spray box front end connects inlet pipeline against following steel pipe, spray box rear end,
Flowmeter and flow control valve are housed, flowmeter connects controller, inlet pipeline water receiving collection with flow control valve on inlet pipeline
Pipe, water collector are pressurizeed by variable frequency pump and are supplied water, and variable frequency pump connects controller；
The multiple spray box is arranged in a column, corresponds to the length of steel pipe direction of lower section.
The nozzle of each spray box front end is even rows, and even rows nozzle is arranged symmetrically along steel pipe top.
The even rows nozzle is double rows of nozzles and four row's nozzles, each nozzle stagger arrangement arrangement.
The nozzle of each spray box front end is odd row, and the row in odd row nozzle is directed at steel pipe top, remaining row
Nozzle is arranged symmetrically along top.
The odd row nozzle is single row of nozzles and three row's nozzles, three row's nozzle stagger arrangement arrangement.
It is a kind of that outer spray cooling means is quenched according to the steel pipe off-line of above-mentioned outer spray cooling device, it the steps include:
First, outer spray cooling device first has to be demarcated before coming into operation, and determines different opening pair at various pressures
The flow answered, controller store it；
Second, before the start of production, according to the pressure and flow of setting, flow control valve is opened to and opens accordingly by controller
Degree, opens the switch valve of inlet pipeline, finely tunes flow control valve further according to actual flow after pressure is stablized, and flow adjusting is arrived
Tolerance permitted range；
Water fender of the gear between steel pipe and spray box is closed in third, controller control, steel pipe feeding, by Si Huidun lever by steel
After pipe is sent into rotary stand, start rotating steel tube；
4th, water fender is opened, quenching cooling is carried out to steel pipe, in cooling procedure if there is flowed fluctuation, controller convection current
Adjustable valve real-time perfoming closed-loop control keeps stability of flow in cooling procedure；
5th, controller closes water fender after current steel pipe is cooling, and cooling water valve is kept it turned on, steel pipe blanking,
Steel pipe is sent into cooling bed roller by Si Huidun lever.
6th, water fender is opened after entering rotary stand with a batch of next steel pipe, repeats above-mentioned cooling procedure
Third is to the 5th step；
7th, cooling water valve is closed after present lot steel pipe is cooling.
Spray cooling device and method are multiple rows of by using the pressurization of flow and pressure adjustable outside steel pipe off-line quenching of the present invention
It is segmented direct-injection cooling structure, meets the out-line quenching process requirements of different steel grade specification steel pipes, steel pipe circumferential and axial are implemented
Quick uniform is cooling, and overall length is straight after quenching steel pipe and performance is uniform, reduces slewing loss, and contract significantly
The time of short bottleneck process -- water quenching, to improve production efficiency.
Detailed description of the invention
Fig. 1 is the nozzle arrangement schematic diagram of the outer spray cooling device of steel pipe off-line of the present invention quenching, in which: Fig. 1 (a) spray
Mouth is double stagger arrangement arrangement, and Fig. 1 (b) nozzle is three misarrangements column arrangement, and Fig. 1 (c) nozzle is four misarrangements column arrangement；
Fig. 2 is the cabinet and valve group schematic diagram of the outer spray cooling device of steel pipe off-line of the present invention quenching；
Fig. 3, which is that steel pipe off-line of the present invention quenching is outer, sprays method flow diagram.
In figure: 1 spray box, 2 nozzles, 3 flowmeters, 4 regulating valves, 5 water collectors.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Referring to Fig. 1 and Fig. 2, a kind of steel pipe off-line quenching is outer sprays cooling device, including multiple spray boxs 1, the spray box 1 are set to
Above the rotary stands of placing steel tubes, each 1 front end of spray box is provided with multiple rows of nozzle 2,1 front end of spray box against following steel pipe,
1 rear end of spray box connects inlet pipeline, and flowmeter 3 and flow control valve 4, flowmeter 3 and flow control valve 4 are housed on inlet pipeline
Controller is connected, inlet pipeline connects water collector 5, and water collector 5 is pressurizeed by variable frequency pump and supplied water, and variable frequency pump connects controller；
The multiple spray box 1 is arranged in a column, corresponds to the length of steel pipe direction of lower section.
The nozzle 2 of 1 front end of each spray box is even rows, and even rows nozzle 2 is arranged symmetrically along steel pipe top.The idol
Number row's nozzle 2 is double rows of nozzles and four row's nozzles, each 2 stagger arrangement of nozzle arrangement.
The nozzle of each spray box front end is odd row, and the row in odd row nozzle is directed at steel pipe top, remaining row
Nozzle is arranged symmetrically along top.The odd row nozzle is single row of nozzles and three row's nozzles, three row's nozzle stagger arrangement arrangement.
The outer spray cooling device of steel pipe off-line quenching of the present invention, should according to the production outline demand of different tube diameters and wall thickness
The multiple rows of nozzle of pressurization (1~4 row) and segmentation spray box (5~15 sections) direct-injection of outer spray cooling device design discharge and pressure adjustable are cold
But device.It is arranged symmetrically when even rows nozzle along steel pipe top, wherein 1 row is directed at steel pipe top when odd row nozzle, remaining spray
Mouth is arranged symmetrically along top.As shown in Figure 1.According to product specification, mainly diameter of steel tube, three kinds of nozzle arrangement modes in Fig. 1
Application range be respectively as follows: the corresponding diameter of steel tube range of Fig. 1 (a) be 50~150mm, the corresponding diameter of steel tube range of Fig. 1 (b)
For 100~200mm, the corresponding diameter of steel tube range of Fig. 1 (c) is 150~500mm.
Steel pipe off-line quenching of the present invention is outer to spray cooling device segment design, and every section is a spray box, and multiple spray boxs are arranged in
One column, correspond to the length of steel pipe direction of lower section.If the outer spray cooling device is designed as single cabinet pattern, it is difficult to adjust overall length
Flow, it is difficult to it is quenched suitable for overall length of interior spray axis stream when cooling, and single spray box is too long is difficult to process straight, both difficult processing
It is unfavorable for installation, maintenance again, general spray box Design of length is at three meters or less.If outer spray cooling device design is too short, large number of,
Although handling ease, needs matched valve group also more, greatly increase manufacturing cost, installation calibrating is time-consuming and laborious, in control
It is comparatively laborious.Meanwhile to meet the heat treatment requirements of thick head thickness tail drilling pipe etc., it is necessary to which according to the tube product thickness, length is set end to end
Count the corresponding spray box length of adjustable water flow and pressure.Therefore, outer spray cooling device on rotary stand generally according to compressing
The position of wheel and thick length end to end, are designed as the combination of multistage (5~15 sections) spray box, due to the barrier of contact roller, outer water spray is difficult to
Steel tube surface is poured, contact roller moisturizing cooling device is devised at contact roller.Flow is provided on each spray box inlet pipeline
Regulating valve and flowmeter can carry out closed-loop control according to setting flow and measured discharge, it is ensured that actual flow referring to fig. 2
Precisely, to meet the needs of uniformly cooling down under different steel grade specification size cooling rates.Inlet pipeline connects water collector, water collection
Pipe is pressurizeed by variable frequency pump and is supplied water, and variable frequency pump connects controller, controls pressure of supply water by variable frequency pump.Outer spray apparatus supplies water
Pressure limit is 0.1~0.5MPa, maximum amount of water 4000m3/h。
A kind of outer spray cooling means of steel pipe off-line quenching the steps include: referring to Fig. 3
First, outer spray cooling device of the invention first has to be demarcated before coming into operation, and determines at various pressures not
With aperture, corresponding flow, controller store it；
Second, before the start of production, according to the pressure and flow of setting, flow control valve is opened to and opens accordingly by controller
Degree, opens the switch valve of inlet pipeline, allowed band is adjusted to according to setting pressure after pressure is stablized, further according to actual flow
Flow control valve is finely tuned, flow is adjusted to tolerance permitted range；
Water fender of the gear between steel pipe and spray box is closed in third, controller control, steel pipe feeding, by Si Huidun lever by steel
After pipe is sent into rotary stand, start rotating steel tube；
4th, water fender is opened, quenching cooling is carried out to steel pipe, in cooling procedure if there is flowed fluctuation, controller convection current
Adjustable valve real-time perfoming closed-loop control, remains stability of flow in cooling procedure；
5th, controller closes water fender after current steel pipe is cooling, and cooling water valve is kept it turned on, steel pipe blanking,
Steel pipe is sent into cooling bed roller by Si Huidun lever；
6th, water fender is opened after entering rotary stand with a batch of next steel pipe, repeats above-mentioned cooling procedure third
To the 5th step；
7th, cooling water valve is closed after present lot steel pipe is cooling.If thering is subsequent batches steel pipe to need to cool down, root
The pressure and flow set according to the steel pipe of next batch repeats above-mentioned the second to the 6th step of cooling procedure.
Embodiment
The outer spray cooling device of steel pipe off-line quenching is designed as the nozzle of four misarrangement column distributions, as shown in Fig. 1 (c), using circle
Cylindrical nozzle.The spray box length of outer spray cooling device, respectively 630mm, 1800mm, 1800mm, 1800mm from interior spray side,
1650mm, 1940mm, 1970mm, 1800mm, overall length 13390mm.
The quenched quenching of spray, outer diameter 168.3mm, wall thickness in outer drench are carried out with line pipe to the ocean military service of X65QO grade of steel
For 15mm, setup parameter is as follows:
Revolving speed: 90rpm
Interior jet flow amount: 418m3/h
Sprays outward power: 0.2MPa
Outer spray total flow: 1399m3/h
1 each section of spray box flow flux density of table and flow
| Spray box number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Length, m | 0.63 | 1.8 | 1.8 | 1.8 | 1.65 | 1.94 | 1.97 | 1.8 |
| Water, m3/h | 61.31 | 177.85 | 181.21 | 184.03 | 173.01 | 206.60 | 213.48 | 201.24 |
| Jet density, m3/h/m | 97.31 | 98.81 | 100.67 | 102.24 | 104.85 | 106.50 | 108.36 | 111.80 |
Steel pipe overall length performance after table 2 quenches
From Table 2, it can be seen that using outer spray cooling device of the invention and method, the yield strength of quenched rear line pipe and anti-
Tensile strength fluctuation significantly reduces.
The above is merely preferred embodiments of the present invention, be not intended to limit the scope of the present invention, therefore, it is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention should be included in protection model of the invention
Within enclosing.
Claims (7)
1. a kind of steel pipe off-line quenching is outer to spray cooling device, it is characterized in that: including multiple spray boxs, which is set to placing steel tubes
Rotary stand above, each spray box front end is provided with multiple rows of nozzle, and spray box front end is against following steel pipe, the connection of spray box rear end
Inlet pipeline, flowmeter and flow control valve are equipped on inlet pipeline, and flowmeter connects controller, water inlet pipe with flow control valve
Road water receiving collector, water collector are pressurizeed by variable frequency pump and are supplied water, and variable frequency pump connects controller；
The multiple spray box is arranged in a column, corresponds to the length of steel pipe direction of lower section.
2. steel pipe off-line quenching according to claim 1 is outer to spray cooling device, it is characterized in that: each spray box front end
Nozzle is even rows, and even rows nozzle is arranged symmetrically along steel pipe top.
3. steel pipe off-line quenching according to claim 2 is outer to spray cooling device, it is characterized in that: the even rows nozzle is double
Arrange nozzle and four row's nozzles, each nozzle stagger arrangement arrangement.
4. steel pipe off-line quenching according to claim 1 is outer to spray cooling device, it is characterized in that: each spray box front end
Nozzle is odd row, and the row in odd row nozzle is directed at steel pipe top, remaining row's nozzle is arranged symmetrically along top.
5. steel pipe off-line quenching according to claim 4 is outer to spray cooling device, it is characterized in that: the odd row nozzle is single
Arrange nozzle and three row's nozzles, three row's nozzle stagger arrangement arrangement.
6. a kind of steel pipe off-line quenching of outer spray cooling device according to claim 1 is outer to spray cooling means, it is characterized in that:
First, outer spray cooling device first has to be demarcated before coming into operation, and determines different opening pair at various pressures
The flow answered, controller store it；
Second, before the start of production, according to the pressure and flow of setting, flow control valve is opened to and opens accordingly by controller
Degree, opens the switch valve of inlet pipeline, finely tunes flow control valve further according to actual flow after pressure is stablized, and flow adjusting is arrived
Tolerance permitted range；
Water fender of the gear between steel pipe and spray box is closed in third, controller control, steel pipe feeding, by Si Huidun lever by steel
After pipe is sent into rotary stand, start rotating steel tube；
4th, water fender is opened, quenching cooling is carried out to steel pipe, in cooling procedure if there is flowed fluctuation, controller convection current
Adjustable valve real-time perfoming closed-loop control keeps stability of flow in cooling procedure；
5th, controller closes water fender after current steel pipe is cooling, and cooling water valve is kept it turned on, steel pipe blanking,
Steel pipe is sent into cooling bed roller by Si Huidun lever.
7. steel pipe off-line quenching according to claim 6 is outer to spray cooling means, it is characterized in that:
6th, water fender is opened after entering rotary stand with a batch of next steel pipe, repeats above-mentioned cooling procedure third
To the 5th step；
7th, cooling water valve is closed after present lot steel pipe is cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779271.5A CN109423542A (en) | 2017-09-01 | 2017-09-01 | The outer spray cooling device of steel pipe off-line quenching and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779271.5A CN109423542A (en) | 2017-09-01 | 2017-09-01 | The outer spray cooling device of steel pipe off-line quenching and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109423542A true CN109423542A (en) | 2019-03-05 |
Family
ID=65505703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779271.5A Pending CN109423542A (en) | 2017-09-01 | 2017-09-01 | The outer spray cooling device of steel pipe off-line quenching and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109423542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708731A (en) * | 2020-11-30 | 2021-04-27 | 常熟市龙特耐磨球有限公司 | Control method and device for non-quenching at two ends of wear-resistant steel bar |
| CN115261577A (en) * | 2022-09-29 | 2022-11-01 | 江苏诚德钢管股份有限公司 | Steel pipe quenching device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866519Y (en) * | 2005-11-29 | 2007-02-07 | 宝山钢铁股份有限公司 | Steel pipe water quenching heat treatment device |
| KR20100107603A (en) * | 2009-03-26 | 2010-10-06 | 노창식 | The cooling device for welded steel pipe |
| CN201778067U (en) * | 2010-06-13 | 2011-03-30 | 福建宇星实业有限公司 | Furnace roller cooling system |
| CN202705412U (en) * | 2012-08-02 | 2013-01-30 | 中冶赛迪工程技术股份有限公司 | Steel pipe quenching outer water spraying device |
| CN103206569A (en) * | 2013-01-20 | 2013-07-17 | 山西太钢不锈钢股份有限公司 | Adjusting method for argon oxygen decarburization (AOD) furnace regulating valve |
| CN203866360U (en) * | 2014-03-10 | 2014-10-08 | 北京机电研究所 | Continuous outward spray quenching device for oil casing |
| CN204918689U (en) * | 2015-08-19 | 2015-12-30 | 山东墨龙石油机械股份有限公司 | Seamless steel pipe segmentation guenching unit |
-
2017
- 2017-09-01 CN CN201710779271.5A patent/CN109423542A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866519Y (en) * | 2005-11-29 | 2007-02-07 | 宝山钢铁股份有限公司 | Steel pipe water quenching heat treatment device |
| KR20100107603A (en) * | 2009-03-26 | 2010-10-06 | 노창식 | The cooling device for welded steel pipe |
| CN201778067U (en) * | 2010-06-13 | 2011-03-30 | 福建宇星实业有限公司 | Furnace roller cooling system |
| CN202705412U (en) * | 2012-08-02 | 2013-01-30 | 中冶赛迪工程技术股份有限公司 | Steel pipe quenching outer water spraying device |
| CN103206569A (en) * | 2013-01-20 | 2013-07-17 | 山西太钢不锈钢股份有限公司 | Adjusting method for argon oxygen decarburization (AOD) furnace regulating valve |
| CN203866360U (en) * | 2014-03-10 | 2014-10-08 | 北京机电研究所 | Continuous outward spray quenching device for oil casing |
| CN204918689U (en) * | 2015-08-19 | 2015-12-30 | 山东墨龙石油机械股份有限公司 | Seamless steel pipe segmentation guenching unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708731A (en) * | 2020-11-30 | 2021-04-27 | 常熟市龙特耐磨球有限公司 | Control method and device for non-quenching at two ends of wear-resistant steel bar |
| CN115261577A (en) * | 2022-09-29 | 2022-11-01 | 江苏诚德钢管股份有限公司 | Steel pipe quenching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100475385C (en) | Straight arc casting machine alloy steel sheet billet continuous casting foot roller segment narrow surface cooling method | |
| CN102266872B (en) | Steel tube cooling device | |
| CN103264054B (en) | Steel tube even cooling device | |
| CN106311763B (en) | A kind of hot rolled seamless steel tube control is cooling to use annular jet cooling device | |
| CN103894427A (en) | Medium and heavy plate online multifunctional cooling device | |
| CN102814248B (en) | Nozzle for axial siphon powder delivering type cold spray | |
| CN202224453U (en) | Complete device of after-rolling ultrafast cooling system for hot-rolled strip steel production line | |
| CN202951712U (en) | Rod and wire water-cooling system | |
| CN102266831B (en) | Cooling device capable of forming high-density jet stream and producing method thereof | |
| CN102121062A (en) | Bar whole quenching cooling device | |
| CN109423542A (en) | The outer spray cooling device of steel pipe off-line quenching and method | |
| CN110976530B (en) | Rapid cooling device and rapid cooling method for high-speed wire | |
| CN204848940U (en) | A rotatory guenching unit for elongate rod thermal treatment | |
| CN109423541A (en) | The process units and method of steel pipe off-line quenching | |
| CN107971352B (en) | Inner cooling device and method for cooling steel pipe on line | |
| CN110777241A (en) | Railway wheel cooling device, cooling method and preparation method | |
| CN202162220U (en) | Steel pipe cooling device | |
| CN209957848U (en) | Spray device of heat treatment furnace | |
| CN206276728U (en) | Water guide groove is worn between a kind of finishing bar mill group | |
| CN201581111U (en) | Whole bar quenching and cooling device | |
| CN206428289U (en) | A kind of metal roof bar quenching unit | |
| CN214088581U (en) | Through type high temperature steel pipe quenching device capable of effectively controlling cooling | |
| CN112609069B (en) | Controlled cooling method for through type high temperature steel pipe quenching | |
| CN109423549A (en) | Steel pipe upset end moisturizing cooling device and method | |
| CN210974792U (en) | Railway wheel cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190305 |