CN105040029B - A kind of preparation method for inhaling aluminum pipe - Google Patents
A kind of preparation method for inhaling aluminum pipe Download PDFInfo
- Publication number
- CN105040029B CN105040029B CN201510377935.6A CN201510377935A CN105040029B CN 105040029 B CN105040029 B CN 105040029B CN 201510377935 A CN201510377935 A CN 201510377935A CN 105040029 B CN105040029 B CN 105040029B
- Authority
- CN
- China
- Prior art keywords
- pipes
- aluminum pipe
- aluminium
- inhaling
- pipe
- 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.)
- Active
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention relates to aluminium electroloysis industries, and the preparation method of aluminum pipe is inhaled more particularly, to a kind of long-life, the B pipes of C pipes, middle part and the C pipes of lower part including top, it is characterised in that：The preparation method of the suction aluminum pipe includes the following steps：It inhales inner and outer wall of aluminium tube cleaning, insulating ceramics spraying in the middle part of C pipes, inhale that stabilization processes that aluminum pipe high-temperature resistant coating brushes, inhales aluminum pipe, the A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle uses above；Present invention offer is a kind of with excellent anti-electric shock loss and high temperature resistant molten aluminum erosion corrosion ability, and cost of manufacture is cheap, and operating procedure is simple.
Description
Technical field
The present invention relates to aluminium electroloysis industries, and the preparation method of aluminum pipe is inhaled more particularly, to a kind of long-life.
Background technology
To ensure that aluminum electrolysis persistently carries out, when molten aluminum accumulation is more than a certain amount of in aluminium cell, need molten aluminum
It extracts out, be transported to other workshops and be processed further, two-man ladle and two-man ladle including opening and vacuum ladle, mainly carry this task.
And it is that various types are two-mand ladle to inhale aluminum pipe, is two-mand ladle and the indispensable important feature of vacuum ladle including opening, it is generally by being in
Horseshoe mouth shape straight tube i.e. C pipes and the equal band in both ends being inserted into when the bend pipe that topmost is connected with backpack body i.e. A pipes, suction aluminium in molten aluminum
It is made of straight tube, that is, three sections of B pipes of flange.Matched between each section with mother-son mouth, and utilize bolt by flanged joint one
It rises.During work, the C pipes for inhaling aluminum pipe are inserted into the molten aluminum of aluminum electrolytic tank, and using siphon principle, aluminium water is inhaled into along B pipes and A pipes
In two-maing ladle.It inhales behaviour in service of the aluminum pipe during melted aluminium absorption is taken out directly to restrict out aluminium cost and go out the height of aluminium efficiency, especially
Its aluminum yield it is big, to be obtained in aluminium large-scale pre-baked cell production with high accuracy and seem even more important.At present, domestic electrolytic aluminium factory goes out
The aluminium suction aluminum pipe material used of two-maing ladle is mainly common heat-resisting cast iron or cast steel, its day-to-day loss situation can be divided into 4 classes：First
Kind is electric shock loss；Second is that flange caused by misoperation destroys loss i.e. B pipes；The third is the weakness after lathe process
Position loss is B pipes；4th kind is that the i.e. A in position pipes, C pipes are easily melted caused by molten aluminum flowing is washed away.It unites by a large amount of data
Meter, it is to inhale aluminum pipe to damage most important reason to inhale aluminum pipe C pipes contact anode short circuit breakdown occurs, and accounts for the 60% of all damages
Left and right, pit is away from straight tube end about 400mm or so.Secondly because it is washed away by the repeated stock of high temperature aluminum water and molten aluminum flowing
Caused by easily melt the i.e. A in position pipe, C pipe, account for about 25% or so；Remaining as go out aluminium operation when bear pulling force it is excessive caused by flange
Adjustment debit is badly B pipes, A pipes.
In recent years, many aluminium electroloysis workers and researcher are studied and have been changed to the behavior of lengthening the life for inhaling aluminum pipe
Into.Entitled high strength composite sucking aluminum pipe, application No. is 200520118707.9, Publication No. 2821346, using outer layer
For metal sleeve, internal layer is the compound suction aluminum pipe of the graphite fibre of high intensity, not only the company of outer layer metal casing and internal layer graphite
It is to be improved to connect intensity, technology difficulty is big, and production cost is high, and outer layer metal tube still cannot prevent electric shock to be lost.Invention
A kind of entitled bimetallic inhales aluminum pipe, and application No. is 201320012025.4, the patent of Publication No. 203007443U will be common
Cheap and corrosion-resistant, heat proof material the excellent performance for inhaling aluminum pipe combines, and has invented C pipes lower part as heat-resisting, corrosion resistant
Aluminum pipe is inhaled in corrosion material pipe and top for the common bimetallic for inhaling aluminum pipe, and the method manufacture craft is simple, and the cost of material is low, but only
It is the angle that fusing corrosion easily occurs under high temperature molten aluminum from suction aluminum pipe, any safeguard measure is not carried out with B pipes in A pipes,
Easily by molten aluminum erosion corrosion, even and if C pipe using heat-and corrosion-resistant material metal pipe still it is unavoidable generation circuit breakdown.Hair
A kind of bright entitled suction aluminum pipe with graphite protective sleeve pipe（201320011919.1）Publication No. 203049048U and invention name
Referred to as graphite aluminum absorption sleeve (200920319079.9) Publication No. 201605336U is protected using graphite bush and is inhaled aluminium
Pipe, due to the high temperature resistant of graphite, it is corrosion-resistant the features such as, although can to a certain extent to inhale aluminum pipe protect, graphite
Brittleness is larger, is extremely easily broken in aluminium operating process is gone out, simultaneously because graphite, inhales aluminum pipe still unavoidable electric shock
Loss.
There is presently no the methods for overcoming drawbacks described above.
Invention content
The defects of the purpose of the present invention is overcoming the prior art, provides a kind of with excellent anti-electric shock loss and high temperature resistant
Molten aluminum erosion corrosion ability, cost of manufacture is cheap, and operating procedure is simple, a kind of preparation method of suction aluminum pipe of long lifespan.
The present invention is accomplished by the following way：
A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, it is characterised in that：The system of the suction aluminum pipe
Preparation Method includes the following steps：
1）Inhale inner and outer wall of aluminium tube cleaning：Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C being managed using blasting craft
Outer surface is cleared up, and with wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment, A is managed
The cleaning of the tools such as surfaces externally and internally file, hand hammer is smooth；
2）Insulating ceramics spraying in the middle part of C pipes：C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then
In C tube outer surfaces away from inhaling in aluminium end 300mm to 500mm regions, thermal spraying treatment is carried out using insulating ceramic materials, applies thickness
Spend 0.2-0.8mm；
3）Aluminum pipe high-temperature resistant coating is inhaled to brush：In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from suction aluminium
In the range of 500 mm of port, A pipe internal surfaces are from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating
Thickness is 1-1.2mm, places 2-4 hour natural air drying in air；
4）Inhale the stabilization processes of aluminum pipe：Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 5-10min, from
So cooling carries out stabilization processes, removes the moisture in coating；
5）The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above；
The insulating ceramic materials are aluminium oxide, chromium oxide or alumina-silica titanium composite material, are length
The ceramic rod of 300mm, diameter 5mm, used heat spraying method are flame-spraying；
The high-temperature resistant coating is high temperature resistant molten aluminum etching ground.
The present invention has following effect：
1）Method is unique, improves service life, remarkable in economical benefits：Method provided by the invention is to easily electric in the middle part of C pipes
Position is hit to carry out ceramic spraying and improve it preventing electric shock ability, at the same C pipes lower end and A pipes upper end are inserted into aluminium water position brush it is high
Thermo-paint improves its high temperature resistant molten aluminum erosion corrosion ability, and using insulating ceramic materials to inhaling aluminum pipe electric shock portion easily occurs for the present invention
Position carries out thermal spraying, and the method in traditional raising suction aluminum pipe service life considers only raising and inhales aluminum pipe high temperature resistant molten aluminum corrosion energy
Power is not directed to improve completely the anti-electric shock ability of aluminum pipe of inhaling, and the present invention fundamentally solves the main reason for inhaling aluminum pipe damage,
It is truly realized to increase substantially and inhales aluminum pipe service life.For 2T platform packets, originally inhaling aluminum pipe average life span is：C pipes go out
Aluminium about 240 packets/root；B pipes go out aluminium about 490 packets/root；C pipes go out aluminium about 970 packets/root.The service life of novel suction aluminum pipe about goes out aluminium originally
3-4 times of pipe, remarkable in economical benefits.
2）The high-temperature coatings are high temperature resistant molten aluminum etching ground, and adhesive rate is high, and cohesive force is strong, can be attached at securely
The surface of aluminum pipe straight tube is inhaled, it is small with molten aluminum wetability, prevent from inhaling aluminum pipe while improving and inhaling aluminum pipe corrosion resistance by molten aluminum
It blocks.
3）In the present invention insulating ceramic materials be only sprayed at be subject to electric shock part, high-temperature coatings only brush with
Aluminium water has the suction aluminum pipe of contact into aluminium end and aluminium inlet position, is ensureing to improve the premise for inhaling the anti-electric shock of aluminum pipe and corrosion resistance
Under, it is cost-effective to the maximum extent.
4）This method is targetedly handled for the different sources of damage for inhaling each section of aluminum pipe, easy to operate, and technique is difficult
Spend it is small, it is reliable effectively, electrolytic aluminium factory can be used on a large scale.
Description of the drawings
Fig. 1 is the structure diagram of the suction aluminum pipe of the present invention.
Specific embodiment
Embodiment one：A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, the preparation of the suction aluminum pipe
Method includes the following steps：
Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C tube outer surfaces being cleared up, and use steel using blasting craft
Wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment；By A pipe surfaces externally and internallies file, hand hammer etc.
Tool cleaning is smooth.
C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C tube outer surfaces away from suction aluminium end
In 300mm to 500mm regions, thermal spraying treatment, coating layer thickness 0.2mm are carried out using aluminium oxide ceramics stick.
In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from inhaling in the range of 500 mm of aluminium port, table in A pipes
2 are placed in air from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness 1mm in face
Hour natural air drying.
Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 5min, natural cooling carries out stabilization processes, removes
Moisture in coating increases the binding performance and heat-resistant impact ability of coating and matrix.
The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above.
Novel suction aluminum pipe service life is：C pipes go out aluminium packet number 968 and wrap, and scrap reason for tube wall electrical breakdown；B pipes go out aluminium packet
Number for 1980 packet, scrap reason for tube wall wash away it is thinning；A pipes go out aluminium packet number 3476 and wrap, and scrap reason for nozzle corrosion.
Embodiment two：A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, the preparation of the suction aluminum pipe
Method includes the following steps：
Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C tube outer surfaces being cleared up, and use steel using blasting craft
Wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment；By A pipe surfaces externally and internallies file, hand hammer etc.
Tool cleaning is smooth.
C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C tube outer surfaces away from suction aluminium end
In 300mm to 500mm regions, thermal spraying treatment, coating layer thickness 0.5mm are carried out using chromium oxide ceramics stick.
In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from inhaling in the range of 500 mm of aluminium port, table in A pipes
2 are placed in air from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness 1.2mm in face
A hour natural air drying.
Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 8min, natural cooling carries out stabilization processes, removes
Moisture in coating increases the binding performance and heat-resistant impact ability of coating and matrix.
The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above.
Novel suction aluminum pipe service life is：C pipes go out aluminium packet number 975 and wrap, and scrap reason and shorten for nozzle corrosion；B pipes go out aluminium
Packet number for 2020 packet, scrap reason for tube wall wash away it is thinning；A pipes go out aluminium packet number 3499 and wrap, and scrap reason for nozzle corrosion.
Embodiment three：A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, the preparation of the suction aluminum pipe
Method includes as follows：
Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C tube outer surfaces being cleared up, and use steel using blasting craft
Wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment；By A pipe surfaces externally and internallies file, hand hammer etc.
Tool cleaning is smooth.
C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C tube outer surfaces away from suction aluminium end
In 300mm to 500mm regions, thermal spraying treatment, coating layer thickness 0.3mm are carried out using chromium oxide ceramics stick.
In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from inhaling in the range of 500 mm of aluminium port, table in A pipes
2 are placed in air from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness 1.2mm in face
A hour natural air drying.
Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 10min, natural cooling carries out stabilization processes, removes
Moisture in coating increases the binding performance and heat-resistant impact ability of coating and matrix.
The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above.
Novel suction aluminum pipe service life is：C pipes go out aluminium packet number 1034 and wrap, and scrap reason and shorten for nozzle corrosion；B pipes go out aluminium
Packet number for 1936 packet, scrap reason for tube wall wash away it is thinning；A pipes go out aluminium packet number 3520 and wrap, and scrap reason and become for spout part scaling loss
It is short.
Example IV：A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, the preparation of the suction aluminum pipe
Method includes as follows：
Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C tube outer surfaces being cleared up, and use steel using blasting craft
Wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment；By A pipe surfaces externally and internallies file, hand hammer etc.
Tool cleaning is smooth.
C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C tube outer surfaces away from suction aluminium end
In 300mm to 500mm regions, thermal spraying treatment, coating layer thickness 0.8mm are carried out using chromium oxide ceramics stick.
In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from inhaling in the range of 500 mm of aluminium port, table in A pipes
2 are placed in air from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness 1.2mm in face
A hour natural air drying.
Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 10min, natural cooling carries out stabilization processes, removes
Moisture in coating increases the binding performance and heat-resistant impact ability of coating and matrix.
The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above.
Novel suction aluminum pipe service life is：C pipes go out aluminium packet number 1058 and wrap, and scrap reason and shorten for nozzle corrosion；B pipes go out aluminium
Packet number for 1966 packet, scrap reason for tube wall wash away it is thinning；A pipes go out aluminium packet number 3542 and wrap, and scrap reason and become for spout part scaling loss
It is short.
Embodiment five：A kind of suction aluminum pipe, the B pipes of C pipes, middle part and the C pipes of lower part including top, the preparation of the suction aluminum pipe
Method includes as follows：
Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, C tube outer surfaces being cleared up, and use steel using blasting craft
Wire brush by C pipes away from inhale aluminium end 250mm to 500mm regions in carry out frosting treatment；By A pipe surfaces externally and internallies file, hand hammer etc.
Tool cleaning is smooth.
C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C tube outer surfaces away from suction aluminium end
In 300mm to 500mm regions, thermal spraying treatment, coating layer thickness 0.5mm are carried out using aluminium oxide ceramics stick.
In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from inhaling in the range of 500 mm of aluminium port, table in A pipes
2 are placed in air from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness 1.0mm in face
A hour natural air drying.
Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree of heat preservation 5min, natural cooling carries out stabilization processes, removes
Moisture in coating increases the binding performance and heat-resistant impact ability of coating and matrix.
The A for inhaling aluminum pipe pipes, B pipes and the effective flanges 8 of C are connected and are installed to two-man ladle and is used above.
Novel suction aluminum pipe service life is：C pipes go out aluminium packet number 952 and wrap, and scrap reason for tube wall electrical breakdown；B pipes go out aluminium packet
Number for 1904 packet, scrap reason for tube wall wash away it is thinning；A pipes go out aluminium packet number 3468 and wrap, and scrap reason for flange cracked.
Fig. 1 is the structure diagram for inhaling aluminum pipe, including easy loss position 1 of shocking by electricity, operates damageable zone 2, is processed weak easy
Position 3 is damaged, washes away damageable zone 4, A pipes 5, B pipes 6 and C pipes 7.
Claims (3)
1. a kind of suction aluminum pipe, the B pipes of A pipes, middle part and the C pipes of lower part including top, it is characterised in that：The system of the suction aluminum pipe
Preparation Method includes the following steps：
1）Inhale inner and outer wall of aluminium tube cleaning：Using shot-blast process to inhaling aluminum pipe C pipe internal surfaces, using blasting craft to C pipe appearances
Face is cleared up, and C pipes are carried out frosting treatment away from inhaling in aluminium end 250mm to 500mm regions with wire brush, A is managed inside and outside
The cleaning of the tools such as surface file, hand hammer is smooth；
2）Insulating ceramics spraying in the middle part of C pipes：C tube outer surfaces are scrubbed with alcohol, after being dried up with air compressor, then in C
Tube outer surface carries out thermal spraying treatment, coating layer thickness away from inhaling in aluminium end 300mm to 500mm regions, using insulating ceramic materials
0.2-0.8mm；
3）Aluminum pipe high-temperature resistant coating is inhaled to brush：In C tube outer surfaces from inhaling in the range of aluminium port 300mm, inner surface is from suction aluminium port
In the range of 500 mm, A pipe internal surfaces are from the high-temperature resistant coating being in a liquid state in brushing in the range of aluminum output port 200mm, coating layer thickness
For 1-1.2mm, 2-4 hour natural air drying is placed in air；
4）Inhale the stabilization processes of aluminum pipe：Aluminum pipe A pipes will be inhaled and C pipes are integrally heated to 700 degree and keep the temperature 5-10min, it is naturally cold
But, stabilization processes are carried out, remove the moisture in coating；
5）The A for inhaling aluminum pipe pipes, B pipes and the effective flanged joints of C are got up and are installed to two-man ladle and is used above.
2. a kind of preparation method for inhaling aluminum pipe as described in claim 1, it is characterized in that：The insulating ceramic materials are oxidation
Aluminium, chromium oxide or alumina-silica titanium composite material, are the ceramic rod of length 300mm, diameter 5mm, used thermal jet
Coating method is flame-spraying.
3. a kind of preparation method for inhaling aluminum pipe as described in claim 1, it is characterized in that：The high-temperature resistant coating is high temperature resistant aluminium
Corrosion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377935.6A CN105040029B (en) | 2015-07-02 | 2015-07-02 | A kind of preparation method for inhaling aluminum pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377935.6A CN105040029B (en) | 2015-07-02 | 2015-07-02 | A kind of preparation method for inhaling aluminum pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105040029A CN105040029A (en) | 2015-11-11 |
| CN105040029B true CN105040029B (en) | 2018-06-12 |
Family
ID=54446990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510377935.6A Active CN105040029B (en) | 2015-07-02 | 2015-07-02 | A kind of preparation method for inhaling aluminum pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105040029B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182156B (en) * | 2021-04-28 | 2022-08-09 | 上海神洲阳光特种钢管有限公司 | Stainless steel seamless steel pipe with precise inner diameter for hydraulic and pneumatic cylinder barrel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2094883B1 (en) * | 2006-11-03 | 2011-12-14 | Rio Tinto Alcan International Limited | An apparatus and a method for tapping metal |
| CN201012385Y (en) * | 2007-03-15 | 2008-01-30 | 张华� | Electrolytic aluminium vacuum bag aluminum sucking pipe |
| CN203049048U (en) * | 2013-01-10 | 2013-07-10 | 武汉大学 | Aluminum suction pipe with graphite protective sleeve |
-
2015
- 2015-07-02 CN CN201510377935.6A patent/CN105040029B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105040029A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103374693B (en) | Nano thermal barrier coating on surface of high-temperature furnace roller and preparation method thereof | |
| CN102211083B (en) | Automatic coating process of composite coating of large-size steel pipe | |
| CN102586714A (en) | Electric arc spraying process of chloride corrosion preventing alloy coating of garbage incinerator heating surface | |
| CN105040029B (en) | A kind of preparation method for inhaling aluminum pipe | |
| CN107523785A (en) | Molybdenum-base alloy surface oxidation-resistant coating and preparation method thereof | |
| CN104451524A (en) | Preparation method of NiCrBSi coating for small-diameter balls | |
| CN105220102A (en) | A kind of method extending the oxygen lance blow head life-span by reducing oxygen lance blow head dry slag | |
| CN105693242A (en) | Low temperature corrosion resistant high temperature nano anticorrosion ceramic paint and preparation method thereof | |
| CN105927822A (en) | Corrosion-resistance composite pipe and manufacturing method thereof | |
| CN108642233A (en) | A method of improving the converter oxygen gun service life | |
| CN103253872B (en) | Method for preparing glass surface ceramic coating layer | |
| CN107511552A (en) | A kind of cellular board and its processing method | |
| CN209416053U (en) | A kind of kiln heater element protective case porcelain pipe device | |
| CN102230743A (en) | Brickwork structure of heating furnace and building method of brickwork | |
| CN104232838A (en) | Red copper oxygen lance sprayer | |
| CN104744973B (en) | A kind of effective high radiation ceramic coating of heating-furnace and its preparation, application method | |
| CN107781802A (en) | A kind of boiler economizer with supersonic spray coating wear-resisting erosion resistance coating | |
| CN105403042A (en) | Graphite crucible for graphitization furnace | |
| CN205300240U (en) | Graphite crucible for graphitization furnace | |
| CN204188006U (en) | A kind of electrode tube protective cover | |
| CN210179609U (en) | Circulating fluidized bed boiler water-cooling wall wear-resisting structure | |
| CN208751731U (en) | A kind of thermocouple structure that protective performance is high | |
| CN209052729U (en) | A kind of converter cooling water pipe | |
| CN218510347U (en) | Improved wear-resistant ceramic tube | |
| CN212804612U (en) | Low temperature resistant steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 751603 Qingtongxia Industrial Park, Wuzhong City, Ningxia Hui Autonomous Region (aluminum plant area) Co-patentee after: WUHAN University Patentee after: SPIC NINGXIA ENERGY AND ALUMINUM TECHNOLOGY ENGINEERING Co.,Ltd. Address before: 750020 the Ningxia Hui Autonomous Region Town, Qingtongxia City, Wuzhong City dam town Qingtongxia Aluminum Factory Co-patentee before: WUHAN University Patentee before: CPI NINGXIA ENERGY ALUMINUM ENGINEERING MAINTENANCE Co.,Ltd. |
|
| CP03 | Change of name, title or address |