CN106862510A - A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion - Google Patents
A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion Download PDFInfo
- Publication number
- CN106862510A CN106862510A CN201710101801.0A CN201710101801A CN106862510A CN 106862510 A CN106862510 A CN 106862510A CN 201710101801 A CN201710101801 A CN 201710101801A CN 106862510 A CN106862510 A CN 106862510A
- Authority
- CN
- China
- Prior art keywords
- temperature
- area
- casting
- roller
- subregion
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The adjustable casting machine equipment of casting roll temperature subregion, including the adjustable casting roller arrangement of temperature subregion, frame, pressure upper cylinder, universal spindle nose, wherein：Temperature subregion is adjustable casting and rolling machine casting roller arrangement, by using temperature subregion tunable arrangement and simple throttling arrangement, controls three regional water flows and flow velocity, realizes the control to body of roll temperature.Temperature subregion tunable arrangement of the invention includes detachable throttle pipe, I area's throttling arrangement and III area's throttling arrangement, apparatus structure design is ingenious, manufacture is easy, it is easily operated, so as to realize that roller surface temperature is controlled in strip casting process, magnesium alloy is due to performance deficiency caused by non-uniform temperature in effectively overcoming strip casting process, and improves production efficiency in the course of the work.
Description
Technical field
The invention belongs to non-ferrous metal casting and rolling device technical field, and in particular to a kind of adjustable magnesium of casting roll temperature subregion
Alloy casting machine equipment.
Background technology
At present, the cooling system of traditional roll-casting of magnesium alloy machine Casting Roller, can only be from a water inlet injection cooling water, cold
But subregion regulation and control cannot be carried out to the temperature of Casting Roller body of roll width during water circulation.
During roll-casting of magnesium alloy, because Casting Rolled Sheet is subject to the comprehensive of the fuel factors such as heat radiation, convection current, frictional heat to make
Changed in the width direction with so that the alloy solution of molten condition temperature in strip casting process, be distributed it is very uneven, if casting
The temperature of roll can not be controlled reasonably, then the sheet material that casting goes out then occurs many defects in performance and quality.Such as
Heat radiation, edge convection current and the influence of strip width, can cause wide magnesium alloy Casting Roller sheet material edge in strip casting process
Cooling is fast, the performance and strip shape quality of sheet material is had a strong impact on, while can also aggravate the defect of edge cracks.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of adjustable casting and rolling machine of roll-casting of magnesium alloy roll temperature subregion and sets
Standby, whole process can make the Temperature Distribution in magnesium alloy plate strip casting process in the width direction tend to uniform.
To achieve the above object, the present invention is adopted the following technical scheme that.
A kind of adjustable casting machine equipment of wide magnesium alloy casting roll temperature subregion, it includes frame, two temperature subregions
Adjustable Casting Roller, pressure upper cylinder, universal drive shaft, wherein upper and lower Casting Roller includes temperature subregion tunable arrangement, the device is installed
At core of cast milling roller cooling water inlet, it is connected with water inlet pipe.
The adjustable casting and rolling machine Casting Roller of temperature subregion includes Quick rotary joint, bearing block, water inlet pipe, outlet pipe, axle
Hold cooling water inlet pipe and water outlet pipe, roll surface infrared temperature scanner, body of roll thermocouple sensor scanner, temperature subregion tunable arrangement.
Water inlet and delivery port are designed with the roll neck of described adjustable Casting Roller one end of temperature subregion, there are some groups of cooling waters to follow on the body of roll
Circulation road, water inlet is connected by Quick rotary joint with inlet channel, and delivery port passes through Quick rotary joint and outlet conduit
Connection；The roll neck of temperature subregion is adjustable Casting Roller is installed on bearing block, and roll surface temperature scanner is located in frame for detecting
Temperature casting roll surface temperature.
In the temperature subregion tunable arrangement, the body of roll is divided into according to the temperature results that theory analysis and numerical simulation draw
Ith, II, III 3 regions.
The temperature subregion tunable arrangement includes detachable throttle pipe, I area's throttling arrangement and III area's throttling arrangement.It is described can
Dismounting throttle pipe is connected with water inlet conduit, and water inlet is fixed on by pin.Quick rotary joint is another with water inlet conduit
End connection.Ith area throttling arrangement and III area's throttling arrangement structure are identical, are connected by two disks with holes, by adjusting
Two disk relative positions of section, are fixed using Clamp blocks, realize changing the purpose of current cross-sectional area, so as to control water-carrying capacity
Size；I area's throttling arrangement and III area's throttling arrangement are installed on diverse location, and I area's throttling arrangement is installed on throttle pipe square groove
Kong Zhong, is fixed in square slotted eye by rotational lock, and III area's throttling arrangement is installed on throttling pipe end, solid by pin connection
Fixed, two kinds of throttling arrangement sizes determine according to respective temperature adjustment demand and roller core cooling water pipeline diameter.
In the detachable throttle pipe, Ith area is symmetrically installed I area's throttling arrangement；II area's duct wall cooling water flow conduits and the body of roll
Cooling water flow conduits alignment；III area's throttling arrangement is installed, the device is located at throttling bottom of the tube, its size root between IIIth area and IIth area
Depending on roller core inlet channel.Detachable throttle pipe intercepts Ith area, IIth area and IIIth area, between Ith area and IIth area, by throttling
Two regions of protruding circular ring construction insulation are designed on pipe；Between IIth area and IIIth area, annulus is designed by roller core inlet channel
Baffle plate, both can fix the area's throttling arrangement of throttle pipe III, it is also possible to realize isolating for IIth area and IIIth area.The temperature subregion can
Adjust device by adjusting the water-carrying capacity in I, II, III area, realize that casting roll surface temperature tends to uniform.
Due to present invention employs above-mentioned technical proposal, cooling water being passed through in Casting Roller body of roll cooling water recirculation system,
According to the temperature that temperature scanning instrument is obtained, the water-carrying capacity of different zones is adjusted by temperature subregion tunable arrangement, solved existing
The uneven, temperature control of heating that casting sheet material is present is difficult to and the low problem of Strip lumber recovery, compared with background technology, this
Invention have the advantages that can be good control casting roll temperature, make casting roll temperature uniformly and improve lumber recovery.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural representation of the adjustable casting roller arrangement of temperature subregion of the present invention；Fig. 3 is detachable throttle pipe junction
Partial enlarged drawing.
Fig. 4 is the detachable throttle pipe of temperature subregion tunable arrangement and Casting Roller assembling schematic diagram；Fig. 5 is that temperature subregion is adjustable
Enlarged drawing is illustrated in the detachable throttle pipe assembling of device；Fig. 6 is the detachable throttle pipe schematic diagram of temperature tunable arrangement；Fig. 7 is temperature
The detachable throttle pipe A-A views of tunable arrangement；The area's throttling arrangement schematic diagrames of Tu8Wei III；The area's throttling arrangement schematic diagrames of Tu9Wei I.
Wherein, 1, direct current generator；2nd, reduction-gear housing；3rd, two grades of balancing point wheel decelerators；4th, cross universal spiale；5th, frame；
6th, upper Casting Roller；7th, lower Casting Roller；8th, spray equipment；9th, upper cylinder is pressed；10th, front guide roll；11st, spindle transition disc；12nd, FL types are convex
Claw yielding coupling；13rd, universal spindle nose；14th, 18, bearing block；15th, bearing；16th, roller set；17th, the roller with cooling system
Core；19th, quick change flange；20th, water inlet gland；21st, temperature subregion tunable arrangement；22nd, cooling water outlet；23rd, water outlet pipe
Road；24th, 25, cooling bearing intake-outlet；26th, temperature subregion tunable arrangement；27th, simple throttling arrangement；28th, detachable throttling
Pipe；29th, I area's throttling arrangement；30th, III area's throttling arrangement.
Specific embodiment
Below by embodiment, the present invention is further elaborated.
As shown in figure 1, the adjustable casting machine equipment of a kind of casting temperature subregion in the present embodiment, it includes frame 5, temperature
The adjustable Casting Roller 6 and 7 of degree subregion, pressure upper cylinder 9, spray equipment 8 and front guide roll 10, wherein：Temperature subregion the is adjustable He of Casting Roller 6
7 are installed in frame 5 and are connected with cross universal spiale 14 by universal spindle nose 13, the connection reducer case of cross universal spiale 14
2nd, two grades of balancing point wheel decelerators 3 and direct current generator 1.
As shown in Figures 2 and 3, the adjustable Casting Roller of temperature subregion include bearing block 14 and 18, bearing 15, roller set 16,
Core of cast milling roller 17, quick change flange 19, water inlet gland 20, water inlet conduit 21 with cooling system, delivery port collecting box
22nd, delivery port pipeline 23, bearing cool down cold inlet and outlet piping 24 and 25, temperature subregion tunable arrangement 26,；It is described with cooling system
Roller core 17 contain cooling water flow conduits, water inlet gland 20 is connected by quick change flange 19 with water inlet conduit 21, water inlet pipe
Road 21 is connected with temperature subregion tunable arrangement 26, and cooling water enters water inlet conduit 21 by water inlet gland 20, flows into temperature
Subregion tunable arrangement 26, core of cast milling roller 17 of the injection with cooling system, the two adjacent groups runner of roller core 17 is vertically arranged, and cools down
Water is cooled down by the surface of runner roller core 17 to roller set 16；Comprising detachable in the temperature subregion tunable arrangement 26
Throttle pipe 28, I area's throttling arrangement 29 and III area's throttling arrangement 30.
As shown in figure 4, the coolant flow channel of the adjustable Casting Roller of temperature subregion is uniformly distributed in body of roll part, according to product
Technological requirement, the size of Casting Roller and the size of water inlet conduit are drawn by empirical equation, according to fluid mechanics knowledge and then
Obtain the size of delivery port pipeline and the size of runner.
The roller core 17 with cooling system covers 16 and lowers the temperature by cooling water circulation to roller, reaches temperature needed for casting.
The course of work of the invention is.
It is shown as shown in Figure 2, Figure 3 and Figure 4, according to technological requirement, by changing cooling water flow and flow velocity size, realize to roller
Body surface temperature regulates and controls.Cooling water accesses water inlet gland 20 by rotating quick connector, flows to water inlet conduit 21, Jin Erliu
Enter temperature subregion tunable arrangement 26, runner roller core of the injection with cooling system arranged from temperature subregion tunable arrangement 26
17.Roll surface infrared temperature scanner and body of roll electric thermo-couple temperature scanner measure casting roll surface temperature and contact temperature with actual
Degree, so that it is determined that going out the actual operating temperature of Casting Roller, can again cast according to the result by temperature subregion tunable arrangement 26
Off-line temperature adjustment is carried out to roll before rolling production.
Temperature subregion tunable arrangement 26 includes detachable throttle pipe 28, I area's throttling arrangement 29 and III area's throttling arrangement 30.
The body of roll is divided into I, II, III 3 regions by temperature subregion tunable arrangement 26, and I area's throttling arrangement 29 is installed according to traffic requirement by Ith area；
II area's duct wall cooling-water duct aligns with the cooling water flow conduits of the body of roll；III area's throttling arrangement 30 is installed between IIIth area and IIth area,
The device is located at the bottom of detachable throttle pipe 28, depending on size is according to the inlet channel of roller core 17.In strip casting process, body surface temperature
Degree is uneven, and I, II, III area's temperature is respectively T1、T2、T3, experiment knows that usual Casting Roller both sides temperature drop is very fast, therefore is casting
In order that the properties of product of casting are uniform in rolling, product temperature is uniform in strip casting process, it is desirable to roller surface temperature uniformity.
Temperature subregion tunable arrangement 26, according to different temperature requirements, controls the water-carrying capacity in I, II, III area.Ith, II, III area's water-carrying capacity is big
It is small to be respectively Q1、Q2、Q3, it is desirable to water-carrying capacity size Q1<Q2, Q3<Q2, make casting roller surface temperature drop consistent with this.
I area's throttling arrangement 29 and III area's throttling arrangement 30 are connected by the disk device of a pair of distribution circular holes,
According to required water-carrying capacity size, the relative position of two disks is adjusted, the circular hole relative position on annulus is overlapped and is blocked,
So as to adjust by the cross-sectional area of cooling water, water-carrying capacity size is controlled.
Detachable throttle pipe 28 can adjust trizonal water-carrying capacity size, and Ith area can lead to III area's water-carrying capacity size
Cross and change I area's throttling arrangement and the area of III area's throttling arrangement respectively and change, area increase water-carrying capacity increase, area reduces water
Flow reduces；II area's water-carrying capacity size is by changing water inlet flow and flow control.It is provided with simply in Ith area and III area's body of roll
Throttling arrangement 27, can realize being finely adjusted control to water-carrying capacity size by the deep length of regulating bolt.
The temperature subregion adjustment to casting roller surface thus just can be realized by temperature subregion tunable arrangement 26, casting can be made
Alloy solution has uniform Temperature Distribution during rolling.
Claims (3)
1. the adjustable casting machine equipment of a kind of casting temperature subregion, it includes frame, temperature subregion is adjustable Casting Roller, pressure upper cylinder
And universal drive shaft, it is characterised in that including the adjustable Casting Roller of temperature subregion, temperature subregion tunable arrangement is contained in Casting Roller；Casting
The temperature measured during rolling is scanned and body of roll electric thermo-couple temperature scanner close to actual temperature by roll surface infrared temperature
Roller surface temperature and actual Contact Temperature are measured, so that it is determined that going out the actual operating temperature of roll；The device is with actual casting
Measurement temperature result be foundation, saved by the area's throttling arrangement of temperature subregion tunable arrangement I in detachable throttle pipe and IIIth area
Stream device, controls Casting Roller different zones cooling water flow size, and body of roll temperature is controlled with this.
2. a kind of adjustable casting machine equipment of casting temperature subregion according to claim 1, it is characterised in that the temperature point
In the cooling system of area is adjustable Casting Roller, cooling water enters water inlet conduit by snap joint, flows into the adjustable dress of temperature subregion
Put, and then inject in the roller core with cooling system, two adjacent groups runner is vertically arranged in roller core, cooling water is injected by runner
Roller core surface, cools down to roller set；The thermo parameters method feature of roll-casting of magnesium alloy by the Casting Roller of casting and rolling machine in proportion
The body of roll is divided into I, II, III 3 temperature adjustable areas；Detachable throttle pipe, I are installed in the temperature subregion tunable arrangement
Area's throttling arrangement and III area's throttling arrangement, the device can be dismantled, is connected with water inlet conduit by pin；Ith area is symmetrical
I area's throttling arrangement is installed；II area's duct wall cooling-water duct aligns with the cooling water flow conduits of the body of roll；Installed between IIIth area and IIth area
III area's throttling arrangement, the device is located at throttling bottom of the tube, depending on its size is according to roller core inlet channel；By I, II, III 3
The water-carrying capacity size in region is respectively Q1、Q2、Q3Adjustment temperature subregion tunable arrangement and simple flow apparatus so that：Q1<Q2, Q3<
Q2。
3. Ith area according to claim 2 throttling arrangement and III area's throttling arrangement, it is characterised in that by adjusting two bands
The relative position of circular hole disk, realizes changing the cross-sectional area that cooling water passes through, and two disk rotations are fixedly connected, and by stepping up
Part is further fixed；I area's throttling arrangement rotation is fixedly installed in I area's duct wall square groove；III area's throttling arrangement uses pin
Nail is arranged on throttling pipe end, and is fixed between IIth area and IIIth area by the ring baffle device in roller core pipeline；Ith area throttles
Device and the throttling arrangement features simple structure processing of IIIth area, it is easy to adjust.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101801.0A CN106862510B (en) | 2017-02-24 | 2017-02-24 | A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion |
| US15/904,466 US10449602B2 (en) | 2017-02-24 | 2018-02-26 | Magnesium alloy cast-rolling unit |
| US16/558,302 US10744558B2 (en) | 2017-02-24 | 2019-09-02 | Magnesium alloy cast-rolling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101801.0A CN106862510B (en) | 2017-02-24 | 2017-02-24 | A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106862510A true CN106862510A (en) | 2017-06-20 |
| CN106862510B CN106862510B (en) | 2019-05-07 |
Family
ID=59168482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710101801.0A Active CN106862510B (en) | 2017-02-24 | 2017-02-24 | A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106862510B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039016A (en) * | 2019-05-17 | 2019-07-23 | 河南鑫泰铝业有限公司 | A kind of steel and non-ferrous metal continuous casting and rolling device |
| CN110102723A (en) * | 2019-05-21 | 2019-08-09 | 一重集团大连工程技术有限公司 | A kind of casting crystallization roll cooling device |
| CN111185580A (en) * | 2019-12-31 | 2020-05-22 | 涿神有色金属加工专用设备有限公司 | Casting roller capable of adjusting cooling water flow in sections |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793172A (en) * | 1986-02-24 | 1988-12-27 | Italimpianti Of America Incorporated | Thermal crown controlled rolls |
| CN2621857Y (en) * | 2003-05-29 | 2004-06-30 | 上海宝钢集团公司 | Water cooling crystallizing roller for double-roll thin strip continuous casting |
| CN1686625A (en) * | 2005-05-12 | 2005-10-26 | 张挺胜 | Hot state working roller with cooling device |
| CN101003079A (en) * | 2006-01-18 | 2007-07-25 | 宝山钢铁股份有限公司 | Method for controlling band shape of thin band continuously casting |
| CN204338575U (en) * | 2014-11-28 | 2015-05-20 | 中冶南方工程技术有限公司 | Roll subsection cooling device |
| CN205966765U (en) * | 2016-06-21 | 2017-02-22 | 兰州理工大学 | Magnesium alloy strip casts roll |
-
2017
- 2017-02-24 CN CN201710101801.0A patent/CN106862510B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793172A (en) * | 1986-02-24 | 1988-12-27 | Italimpianti Of America Incorporated | Thermal crown controlled rolls |
| CN2621857Y (en) * | 2003-05-29 | 2004-06-30 | 上海宝钢集团公司 | Water cooling crystallizing roller for double-roll thin strip continuous casting |
| CN1686625A (en) * | 2005-05-12 | 2005-10-26 | 张挺胜 | Hot state working roller with cooling device |
| CN101003079A (en) * | 2006-01-18 | 2007-07-25 | 宝山钢铁股份有限公司 | Method for controlling band shape of thin band continuously casting |
| CN204338575U (en) * | 2014-11-28 | 2015-05-20 | 中冶南方工程技术有限公司 | Roll subsection cooling device |
| CN205966765U (en) * | 2016-06-21 | 2017-02-22 | 兰州理工大学 | Magnesium alloy strip casts roll |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039016A (en) * | 2019-05-17 | 2019-07-23 | 河南鑫泰铝业有限公司 | A kind of steel and non-ferrous metal continuous casting and rolling device |
| CN110039016B (en) * | 2019-05-17 | 2024-05-14 | 河南鑫泰铝业有限公司 | Continuous casting and rolling device for steel and nonferrous metal |
| CN110102723A (en) * | 2019-05-21 | 2019-08-09 | 一重集团大连工程技术有限公司 | A kind of casting crystallization roll cooling device |
| CN111185580A (en) * | 2019-12-31 | 2020-05-22 | 涿神有色金属加工专用设备有限公司 | Casting roller capable of adjusting cooling water flow in sections |
| CN111185580B (en) * | 2019-12-31 | 2022-04-01 | 涿神有色金属加工专用设备有限公司 | Casting roller capable of adjusting cooling water flow in sections |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106862510B (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106862510A (en) | A kind of adjustable wide magnesium alloy casting and rolling machine of casting roll temperature subregion | |
| CN106735009B (en) | Casting roller, casting and rolling system and casting and rolling process based on casting roller | |
| CN106125790B (en) | Die face and the drop stamping temperature control system of plate Multi-Point Closed-Loop observing and controlling | |
| CN103273577A (en) | Circulating cooling device of multi-wire cutting machine and control method of circulating cooling device | |
| CN111799950A (en) | New energy automobile, driving motor oil cooling system and control method | |
| CN109332614B (en) | Cooling control device and method for single-point non-equilibrium casting special-shaped blank crystallizer | |
| CN206368184U (en) | A kind of rail welding head normalizing system | |
| CN206124030U (en) | Vulcanizer and cooling device thereof | |
| KR20140029361A (en) | Twin roll continuous caster | |
| CN204125474U (en) | A kind of hot molten slag gets slag device online | |
| CN205152336U (en) | Whitewashed nozzle is sent to laser cladding broadband side direction | |
| CN103230945A (en) | On-line temperature measuring device for surfaces of rolls of strip rolling mill and testing method of on-line temperature measuring device | |
| CN203295576U (en) | Water cooling roller | |
| CN209016890U (en) | A kind of Large Air Separation Devices compressor electric motor emergency cooling system | |
| CN103357848A (en) | Automatic spray cooling device for centrifugal casting mold cylinder | |
| CN203548600U (en) | Air-cooled temperature control bearing seat system for high-temperature rotating shaft supporting bearing | |
| CN104561456B (en) | A kind of body of heater for fast cooling | |
| CN208293136U (en) | For the draw roll of extraordinary polyethylene fibre, drafting machine and drafting system | |
| CN205084790U (en) | Take cooling system's high pressure grinding roller bearing frame | |
| CN207723444U (en) | A kind of amorphous band cooling device | |
| CN203253733U (en) | On-line temperature measuring device for roller surface of plate and strip rolling mill | |
| CN114054510A (en) | Near-isothermal heatable roller with roller end heat dissipation function and control method thereof | |
| CN103091119B (en) | A kind of liquid cavitation firing equipment heat outputting Efficiency test method and device | |
| CN205342344U (en) | Equipment is unloaded to roll squeezer roller shell heat | |
| CN103272846B (en) | Rolling system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |