CN106949738A - A kind of modified technique of horizontal crucible and its water circuit system - Google Patents

A kind of modified technique of horizontal crucible and its water circuit system Download PDF

Info

Publication number
CN106949738A
CN106949738A CN201710270825.9A CN201710270825A CN106949738A CN 106949738 A CN106949738 A CN 106949738A CN 201710270825 A CN201710270825 A CN 201710270825A CN 106949738 A CN106949738 A CN 106949738A
Authority
CN
China
Prior art keywords
crucible
supporting plate
cylinder
welding
flange
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
Application number
CN201710270825.9A
Other languages
Chinese (zh)
Inventor
李明阳
雷成贵
王�忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU SHENGYA NONFERROUS METAL MATERIAL Co Ltd
Original Assignee
JIANGSU SHENGYA NONFERROUS METAL MATERIAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU SHENGYA NONFERROUS METAL MATERIAL Co Ltd filed Critical JIANGSU SHENGYA NONFERROUS METAL MATERIAL Co Ltd
Priority to CN201710270825.9A priority Critical patent/CN106949738A/en
Publication of CN106949738A publication Critical patent/CN106949738A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/08Details peculiar to crucible or pot furnaces
    • F27B14/10Crucibles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/08Details peculiar to crucible or pot furnaces
    • F27B2014/0837Cooling arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/08Details peculiar to crucible or pot furnaces
    • F27B14/10Crucibles
    • F27B2014/102Form of the crucibles

Abstract

The invention discloses a kind of modified technique of horizontal crucible and its water circuit system, horizontal crucible includes body and is installed on the supporting plate of body side-lower, and technique comprises the following steps:Step one, handled using ultrasonic examination, Surface testing is carried out to the material for preparing of body and supporting plate;Step 2, opens up welding groove;Step 3, rolls processing;Step 4, welding, school circle, finishing processing and radiographic inspection processing;Step 5, roughing is carried out to crucible cylinder and conductive crucible flange;Step 6, is welded to crucible cylinder and crucible flange;Step 7, is machined out to the crucible being welded to crucible desired size;Step 8, the water pressure test is carried out to crucible;Body and supporting plate are integrally prepared from by pure red copper or platinum material, the overall firmness of enhancing crucible;And its bottom surface is provided with concavo-convex ripple struction in crucible cylinder, the resistance to elevated temperatures and service life of crucible cylinder, reduction production and processing cost, so as to improve yield are improved.

Description

A kind of modified technique of horizontal crucible and its water circuit system
Technical field
The present invention relates to a kind of modified technique of horizontal crucible and its water circuit system, belong to Crucible equipment technical field.
Background technology
Existing crucible is by red copper body and is installed on the stainless steel supporting plate of red copper body side-lower and constitutes, and this kind of crucible makes It is shorter with the life-span, and be easily deformed, leak, cost is higher, influences yield;Due among fusion process, crucible barrel distortion While, supporting plate can be also deformed, and its bottom surface top of crucible cylinder is in contact with hot ingot casting, and bottom connects with cooling water Touch, crucible cylinder body bottom to top is produced the temperature difference, the thermal stress of generation vertically upward, so as to produce deformation vertically upward; Thermal stress is delivered on crucible flange and supporting plate by crucible cylinder lateral wall, makes its bottom crimp deformation aggravation of crucible cylinder;Earthenware Its bottom surface of crucible cylinder exists between radial temperature difference, top-to-bottom from centre to circumferential edges position and there is axial temperature difference, The thermal stress that both temperature difference are produced makes its basal diameter contraction of crucible cylinder, and height increases, the radial direction of its bottom surface of crucible cylinder Contraction distortion makes it increase with the fit clearance of crucible cylinder body bottom seam, when the accumulation of unilateral gap reaches 3~4mm, melting Liquid misfit gold in state will be flowed into the gap between crucible cylinder seam and crucible cylinder bottom surface, by crucible after solidification Cylinder bottom surface is wrapped up, now the thoroughly failure deformation of crucible cylinder bottom surface.Therefore, in order to solve problem above, it would be highly desirable to existing The water route of crucible be improved, to improve the service life of crucible.
The content of the invention
To solve the above problems, the present invention proposes the modified technique of a kind of horizontal crucible and its water circuit system, by body Integrally it is prepared from by pure red copper or platinum material with supporting plate, the overall firmness of enhancing crucible;And at its bottom of crucible cylinder Face is provided with concavo-convex ripple struction, improves the resistance to elevated temperatures and service life of crucible cylinder, and reduction is produced and processed into This, so as to improve yield.
The horizontal crucible of the present invention, including body and the supporting plate for being installed on body side-lower;Body and the supporting plate one It is prepared from;The body and supporting plate are integrally prepared from by pure red copper material or platinum material, and the body is set to cube Hollow form.
As preferred embodiment, the body includes crucible flange and the square structure being arranged in the middle of crucible flange Crucible cylinder;The crucible flange is made with crucible cylinder through argon arc welding is welded;Described its bottom surface of crucible cylinder is set There is concavo-convex ripple struction;The trapezoidal structure in described its longitudinal cross-section of crucible cylinder.
As preferred embodiment, the supporting plate is located between crucible flange and crucible cylinder, the top surface of the supporting plate Positioned at the lower end of the crucible flange top surface, the bottom surface of the supporting plate is located at the upper end of the crucible flange bottom, the crucible The bottom surface of cylinder is located at the bottom of crucible flange bottom.
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, the preparation of the supporting plate of body and pure red copper to pure red copper Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the pure red copper welding on surface in crucible tube body, then be carried out crucible cylinder The welding of the supporting plate in outside;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, and pure red copper face and the crucible cylinder inner surface for then carrying out crucible flange surface are pure The welding and heat treatment in red copper face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, and body and pure platinum supporting plate to pure platinum prepares material Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the platinum welding on surface in crucible tube body, then be carried out crucible tube external The welding of the supporting plate of side;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, then carries out platinum face and the crucible cylinder inner surface platinum of crucible flange surface The welding and heat treatment in face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, and body and pure platinum supporting plate to pure red copper prepares material Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the pure red copper face welding on surface in crucible tube body, then be carried out crucible tube The welding of the supporting plate of external side;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, and pure red copper face and the crucible cylinder inner surface for then carrying out crucible flange surface are pure The welding and heat treatment in red copper face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
As preferred embodiment, also including the processing for the ripple struction being provided with to its bottom surface of crucible cylinder.
The present invention compared with prior art, horizontal crucible of the invention and its modified technique of water circuit system, by body Integrally it is prepared from by pure red copper or platinum material with supporting plate, the overall firmness of enhancing crucible;And at its bottom of crucible cylinder Face is provided with concavo-convex ripple struction, improves the resistance to elevated temperatures and service life of crucible cylinder, and reduction is produced and processed into This, so as to improve yield.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of the present invention.
Fig. 2 is the present invention looks up structural representation of the present invention.
Fig. 3 is the cross section structure diagram of the present invention.
Embodiment
As shown in Figure 1 to Figure 3, horizontal crucible of the invention, including body 1 and the supporting plate 2 for being installed on body side-lower;Institute State body 1 and supporting plate 2 is integrally prepared from, the body 1 and supporting plate 2 are by pure red copper material or the preparation of platinum material one Into the body 1 is set to the hollow form of cube.
Wherein, the body 1 includes the crucible cylinder of crucible flange 11 and the square structure being arranged in the middle of crucible flange 12;The crucible flange 11 is made with crucible cylinder 12 through argon arc welding is welded;Described its bottom surface of crucible cylinder 12 is provided with Concavo-convex ripple struction 13;The trapezoidal structure in described its longitudinal cross-section of crucible cylinder 12, the supporting plate 2 is located at crucible flange 11 Between crucible cylinder 12, the top surface of the supporting plate 2 is located at the lower end of the top surface of crucible flange 11, the bottom surface of the supporting plate 2 Upper end positioned at the bottom surface of crucible flange 11, the bottom surface of the crucible cylinder 12 is located at the bottom of the bottom surface of crucible flange 11.
Embodiment 1:
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, the preparation of the supporting plate of body and pure red copper to pure red copper Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the pure red copper welding on surface in crucible tube body, then be carried out crucible cylinder The welding of the supporting plate in outside;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, and pure red copper face and the crucible cylinder inner surface for then carrying out crucible flange surface are pure The welding and heat treatment in red copper face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
Embodiment 2:
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, and body and pure platinum supporting plate to pure platinum prepares material Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the platinum welding on surface in crucible tube body, then be carried out crucible tube external The welding of the supporting plate of side;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, then carries out platinum face and the crucible cylinder inner surface platinum of crucible flange surface The welding and heat treatment in face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
Embodiment 3:
A kind of modified technique of the water circuit system of horizontal crucible, the technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, and body and pure platinum supporting plate to pure red copper prepares material Material carries out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out Cleaning;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;Weldering Crucible cylinder will be rolled when connecing to be welded, and first be carried out the pure red copper face welding on surface in crucible tube body, then be carried out crucible tube The welding of the supporting plate of external side;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to earthenware Crucible cylinder carries out the pre-heat treatment with crucible flange, and pure red copper face and the crucible cylinder inner surface for then carrying out crucible flange surface are pure The welding and heat treatment in red copper face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
Wherein, also including the processing for the ripple struction being provided with to its bottom surface of crucible cylinder.
The horizontal crucible of the present invention and its modified technique of water circuit system, its bottom surface top of crucible cylinder and hot ingot casting It is in contact, bottom is contacted with cooling water, crucible cylinder body bottom to top is produced the temperature difference, generate thermal stress vertically upward, from And deformation vertically upward is produced, concavo-convex ripple struction is provided with its bottom surface of crucible cylinder, can effectively disperse heat should Power, reduces stress to its bottom crimp deformation extent of crucible cylinder;Thermal stress is delivered to crucible flange by crucible cylinder lateral wall On supporting plate, body and supporting plate are integrally prepared from by pure red copper or platinum material, the overall firmness of enhancing crucible;And In crucible cylinder, its bottom surface is provided with concavo-convex ripple struction, improves the resistance to elevated temperatures and service life of crucible cylinder, Reduction production and processing cost, so as to improve yield.
Above-described embodiment, is only the better embodiment of the present invention, therefore all structures according to described in present patent application scope Make, the equivalent change or modification that feature and principle are done, be included in the range of present patent application.

Claims (7)

1. a kind of horizontal crucible, it is characterised in that:Including body and it is installed on the supporting plate of body side-lower;The body and supporting plate Integrally it is prepared from;The body and supporting plate are integrally prepared from by pure red copper material or platinum material, and the body is set to The hollow form of cube.
2. horizontal crucible according to claim 1, it is characterised in that:The body includes crucible flange and is arranged at crucible The crucible cylinder of square structure in the middle of flange;The crucible flange is made with crucible cylinder through argon arc welding is welded;It is described Its bottom surface of crucible cylinder is provided with concavo-convex ripple struction;The trapezoidal structure in described its longitudinal cross-section of crucible cylinder.
3. horizontal crucible according to claim 2, it is characterised in that:The supporting plate be located at crucible flange and crucible cylinder it Between, the top surface of the supporting plate is located at the lower end of the crucible flange top surface, and the bottom surface of the supporting plate is located at the crucible flange bottom The upper end in face, the bottom surface of the crucible cylinder is located at the bottom of crucible flange bottom.
4. a kind of modified technique of the water circuit system of horizontal crucible, it is characterised in that:The technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, and the supporting plate of body and pure red copper to pure red copper prepares material Carry out Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out clearly Reason;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;During welding Crucible cylinder will be rolled to be welded, the pure red copper welding on surface in crucible tube body is first carried out, then carry out the external side of crucible tube Supporting plate welding;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to crucible tube Body carries out the pre-heat treatment with crucible flange, then carries out pure red copper face and the pure red copper of crucible cylinder inner surface of crucible flange surface The welding and heat treatment in face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
5. a kind of modified technique of the water circuit system of horizontal crucible, it is characterised in that:The technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, the material for preparing of body and pure platinum supporting plate to pure platinum enters Row Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out clearly Reason;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;During welding Crucible cylinder will be rolled to be welded, the platinum welding on surface in crucible tube body is first carried out, then carry out the external side of crucible tube The welding of supporting plate;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to crucible tube Body carries out the pre-heat treatment with crucible flange, then carries out the platinum face and crucible cylinder inner surface platinum face of crucible flange surface Welding and heat treatment;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
6. a kind of modified technique of the water circuit system of horizontal crucible, it is characterised in that:The technique comprises the following steps:
Step one, raw material is detected, is handled using ultrasonic examination, the material for preparing of body and pure platinum supporting plate to pure red copper enters Row Surface testing;
Step 2, opens up welding groove, welding groove is opened up on body and supporting plate material, and the groove opened up is carried out clearly Reason;
Step 3, is rolled, and will open up the body after welding groove and supporting plate material carries out rolling processing;
Step 4, is welded, school is justified, finishing processing and radiographic inspection are handled to the body and supporting plate material rolled;During welding Crucible cylinder will be rolled to be welded, the pure red copper face welding on surface in crucible tube body is first carried out, then carry out crucible tube external The welding of the supporting plate of side;
Step 5, preprocessing carries out roughing to crucible cylinder and conductive crucible flange;
Step 6, is welded to crucible cylinder and crucible flange, during the welding of crucible cylinder and crucible flange, first to crucible tube Body carries out the pre-heat treatment with crucible flange, then carries out pure red copper face and the pure red copper of crucible cylinder inner surface of crucible flange surface The welding and heat treatment in face;
Step 7, finishing, is machined out to the crucible being welded to crucible desired size;
Step 8, crucible performance test carries out the water pressure test to crucible.
7. the modified technique of the water circuit system of the horizontal crucible according to claim 4,5 or 6, it is characterised in that:Also include The processing for the ripple struction being provided with to its bottom surface of crucible cylinder.
CN201710270825.9A 2017-04-24 2017-04-24 A kind of modified technique of horizontal crucible and its water circuit system Pending CN106949738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710270825.9A CN106949738A (en) 2017-04-24 2017-04-24 A kind of modified technique of horizontal crucible and its water circuit system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710270825.9A CN106949738A (en) 2017-04-24 2017-04-24 A kind of modified technique of horizontal crucible and its water circuit system

Publications (1)

Publication Number Publication Date
CN106949738A true CN106949738A (en) 2017-07-14

Family

ID=59476641

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710270825.9A Pending CN106949738A (en) 2017-04-24 2017-04-24 A kind of modified technique of horizontal crucible and its water circuit system

Country Status (1)

Country Link
CN (1) CN106949738A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2127485Y (en) * 1992-04-07 1993-02-24 中国有色金属工业总公司昆明贵金属研究所 Glass fiber leakage plate crucible
CN101619929A (en) * 2009-07-08 2010-01-06 南京宝泰特种材料有限公司 Red copper/stainless steel composite board crucible and preparation method
CN205258659U (en) * 2015-12-03 2016-05-25 江苏美科硅能源有限公司 A special -shaped crucible for casting accurate single crystal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2127485Y (en) * 1992-04-07 1993-02-24 中国有色金属工业总公司昆明贵金属研究所 Glass fiber leakage plate crucible
CN101619929A (en) * 2009-07-08 2010-01-06 南京宝泰特种材料有限公司 Red copper/stainless steel composite board crucible and preparation method
CN205258659U (en) * 2015-12-03 2016-05-25 江苏美科硅能源有限公司 A special -shaped crucible for casting accurate single crystal

Similar Documents

Publication Publication Date Title
CN102489952B (en) Method for manufacturing titanium alloy thick-wall pressure-resistant cylinder body
CN102294579B (en) Method for manufacturing thin-wall and ultra-long nickel-copper alloy pipes
CN102418060A (en) Processing method for TC4 titanium alloy large-sized bar
CN202214452U (en) Split nested type cylindrical heat shield used for sapphire single crystal furnace
CN104046900A (en) Heavy-gauge critical hydrogen 12Cr2MolR steel plate and manufacturing method
CN103920967B (en) Absorption tower welding method
CN110451780B (en) Cooling section flat tube for platinum channel in substrate glass production process and preparation method thereof
CN104538543A (en) Preparing method of NbTi rod for low-temperature superconducting wire rod
CN104785979B (en) Steel construction box column electroslag welding inside water flowing copper billet forced cooling device
CN103231209A (en) Method for producing vacuum-embedded metallurgical composite bimetal seamless tube
CN104152709A (en) Production process for corrosion resistant alloy electroslag remelting slab with thickness smaller than 200 mm and equipment
CN102649123B (en) Method for producing extra thick composite board through dissymmetrical composite rolling
CN105499293A (en) Method for preparing large-diameter thick-walled seamless copper pipe through extruding machine
CN105268753A (en) Extruding machine and method of utilizing extruding machine to manufacture large-diameter thick-wall seamless copper pipe
CN113857283B (en) Forming method of high-speed tool steel bar
CN100457354C (en) Pile-up welding method of turbine low pressure heater pipe plate and shell, water chamber junction
CN106949738A (en) A kind of modified technique of horizontal crucible and its water circuit system
CN101619929B (en) Red copper/stainless steel composite board crucible and preparation method
US20150258604A1 (en) Back-up roll device and method for conducting corner deformation on chamfered continuous casting slab
CN105598163A (en) Process for rolling metal composite rod with corrugated bonding surface
CN109261744A (en) A kind of major diameter dual phase steel pipe manufacturing method
JP5343746B2 (en) Continuous casting method of round slabs for seamless steel pipes
CN108057875B (en) Consumable electrode assembly complete equipment for electroslag remelting hollow steel ingot and consumable electrode assembly method
EP3604878B1 (en) Method for preparing sectional-type high abrasion resistant double-layered straight pipe and corresponding abrasion resistant straight pipe
CN104533691A (en) Large length-width ratio hollow-out type fixing guide vane

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
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170714

WD01 Invention patent application deemed withdrawn after publication