CN102260840A - Short-flow efficient production method for brass tubes - Google Patents
Short-flow efficient production method for brass tubes Download PDFInfo
- Publication number
- CN102260840A CN102260840A CN 201110210692 CN201110210692A CN102260840A CN 102260840 A CN102260840 A CN 102260840A CN 201110210692 CN201110210692 CN 201110210692 CN 201110210692 A CN201110210692 A CN 201110210692A CN 102260840 A CN102260840 A CN 102260840A
- Authority
- CN
- China
- Prior art keywords
- brass
- pipe
- annealing
- cold
- rolling
- 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
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to the field of metal materials and relates to a short-flow efficient production method for brass tubes. The method is characterized in that: brass tube billets which have axial orientated tissue and high internal and external surface quality are produced efficiently by using the low-consumption hot and cold combination cast type continuous casting technology; the tube billets are subjected to subsequent forming directly under the condition that surfaces are not peeled, wherein intermediate annealing is not needed to be performed or only a little bit of low-temperature annealing is needed to produce the brass tubes efficiently. The hot and cold combination cast type continuous casting is characterized in that: a continuous casting crystallizer is formed by combining a hot section which is heated and a cold section which is subjected to forced cooling by circulating water, and the tube billets which are high in the quality of the surfaces and have the axial orientated tissue are prepared efficiently by controlling solidification interfaces of the tubes to be positioned nearby the junction of the hot section and the cold section. The method has the advantages of short production flow, low consumption, high yield and high production efficiency.
Description
Technical field
The invention belongs to metal material field, relate to a kind of short flow high efficiency production method of brass straight tube/coil pipe.
Background technology
Brass is to be the copper alloy of principal element with zinc, its heat conductivility, mechanical property, processing characteristics, fine corrosion resistance.Generally can add metals such as tin, aluminium, the manganese alloy that comes from different backgrounds and possess different abilities, be special brass for the performance of improving brass, as: leading or bismuth can improve the cutting ability of brass in brass; Add tin and can significantly improve the anti-seawater of brass, the ability of sea atmosphere corrosion; Add multiple element (aluminium, manganese, silicon, iron, tin etc.) simultaneously and can also make the wear resistant brass of high strength, high-wearing feature.Just because of brass has above characteristic, brass alloys tubing is widely used in the heat exchanging tube of heat exchanger of industries such as power station, boats and ships and refrigeration, and water supply and sewage pipe for building and automobile are used fields such as high abrasion synchronizing tooth ring pipe.
At present, the main production method of brass pipe has three kinds: first kind is traditional extrusion production technology, be semicontinuous ingot casting-hot extrusion-(cold rolling)-stretching [see: Sun Dehua. the development of the single-phase leaded brass tubing of C33000 α. non-ferrous metal processing, 2010,39 (1): 42-45], the characteristics of traditional technology are the quality product height, but Production Flow Chart is long, lumber recovery is low, facility investment is big, product cost is high.Second kind is casting-rolling technology, it is the cold rolling or planetary rolling-stretching of horizontal casting pipe-multi-pass, compare with traditional extrusion process, owing to adopt continuous cast method directly to prepare the copper pipe base, can increase substantially production efficiency, simultaneously, the machining deformation amount of the rolling single pass of three-roller planetary is big, thereby has further improved production efficiency.Flow process shortens significantly, production cost significantly reduces though casting-rolling technology is compared with traditional extrusion process, also has quality of tube blank steel relatively poor (as outside surface orange peel, internal surface fold, shrinkage porosite, flourishing radially columanar structure etc.), production unit and technology deficiencies such as comparatively complexity, energy consumption be big.The third is continuous up-casting pipe-hubbing, compares with above-mentioned two kinds of technologies, and continuous up-casting is produced pipe can be directly used in drawing, has saved extruding, rolling two procedures, improves lumber recovery, reduces production costs.Institute's cast tube base homogeneous microstructure, surface quality is higher [sees: Li Zhuo etc., the production method of one Albatra metal-continuous up-casting pipe, Chinese invention patent, CN1350897A, 2002-5-29 and Liang Xinhai, a kind of method of producing brass pipe blanks by upward continuous casting, Chinese invention patent, CN101670424A, 2010-3-17].Continuous up-casting-drawing production of copper alloy pipe weak point is: the one, can produce the limitation of pipe specification at present, only can produce the pipe of external diameter below 42mm, be difficult for the bigger product of production specification, and the less [Liu Huanai etc. of throughput, copper alloy tube bar complete processing. Beijing: Chemical Industry Press, 2009].The 2nd, because the gas come-up, the pipe density of continuous up-casting is relatively poor, and quality product is lower.
In addition, produce minor diameter (3～10mm), thin-walled is (aspect the accurate copper pipes such as 0.3～0.7mm) cable tube, cathode tube, thank to build and newly wait the people to develop the short flow preparation complete processing of accurate copper pipe [to see: Xie Jianxin, Lou Huafen, Wang Zidong etc., the short flow preparation technology of copper and copper alloy precision tube, Chinese invention patent, ZL200710065281.9,2009-06-10], be characterized in adopting the thin-wall copper pipe of hot-mold continuous cast method form diameter 15～40mm, wall thickness 1～3mm, directly coil then and draw, produce minor diameter, thin-walled precision tube.Compare with traditional extrusion process, saved hot extrusion and cold rolled tube operation; Compare with the horizontal casting method, saved the face of milling and planetary rolling operation.Therefore, novel process can shorten flow process significantly, energy efficient, significantly improve lumber recovery, reduce cost, this technology aspect the pipe continuous casting based on hot-mold continuous cast, liquid-solid interface is controlled near the outlet of casting mold, its advantage is: 1. continuous casting tubing surfaces externally and internally bright and clean, can reach mirror status, do not need any processing can be directly used in cold working such as rolling, drawing; 2. vertically the continuous cylindrical crystalline texture of growth help follow-up extend axially distortion [Zhang Hong, Xie Jianxin, Wang Zidong, Wang Hao, tissue after continuous directional solidification copper rod and the cold working thereof and mechanical property. mechanical engineering material, 2004,28(2): 31-33].And the problem that adopts the hot-mold continuous cast technology to produce the pipe existence is: 1. can only realize minor diameter (≤Ф 50mm), thin-walled (≤3mm) the continuous casting shaping of tubing, and casting speed is slower, production efficiency is lower, is fit to the production of the accurate tiny brass pipe of high quality; 2. since solid-liquid interface near casting mold outlet, technique controlling difficulty is bigger, occurs the bleedout accident easily.
In order to solve pipe surface quality difference that common horizontal casting exists and problem such as the low and easy bleedout of the production efficiency of column crystal problem and hot-mold continuous cast existence radially, people such as applicant developed hot cold combination casting mold horizontal continuous casting technology [see: thank build new etc., a kind of copper-nickel alloy tubing cold combination casting mold horizontal continuous casting process of heat and equipment, Chinese invention patent, CN 101966564 A, 2010-10-09], its principle is that casting mold is made up of heating zone and cooling section, heating zone adopts heating unit to force heating, and cooling section adopts water cooling copper sleeve to force cooling, sets up higher axial-temperature gradient in forward position, tubing freezing interface thus.The advantage of this technology is: (1) continuous casting tubing dense structure and the columanar structure that has vertically orientation help the follow-up extensional that extends axially processing (as rolling, drawing); (2) the tubing surfaces externally and internally is superior in quality, and defectives such as no orange peel, fold, crackle do not need surfaces externally and internally to mill face and can directly carry out follow-up cold machine-shaping; (3) the liquid-solid interface span of control is big, allows to adopt bigger casting speed, and realizes the continuous casting than major diameter and wall thickness tubing.This technology be developed as copper and the copper-alloy pipe-material High-efficient Production provides brand-new approach.The hot cold combination casting mold horizontal continuous casting technology of employings such as patent applicant prepares the copper-nickel alloy pipe, in conjunction with specific following process and annealing process, developed copper-nickel alloy tubing the short flow high efficiency production method [see: thank build new etc., a kind of copper-nickel alloy alloy pipe short flow high efficiency production method, Chinese invention patent, application number: 201110064777.0,2011-03-17].But also there is following problem in this invention: the one, because the fusing point of copper-nickel alloy alloy is higher, for obtaining required pattern of fever temperature, pattern of fever has adopted high-frequency induction heating, but the net horsepower factor of high-frequency induction heating is lower, cause pattern of fever when heating energy consumption bigger, increased production cost; The 2nd, because brass and copper-nickel alloy chemical ingredients differ bigger, continuous casting, shaping processing and heat treatment process parameter differ bigger.For example, the fusing point of brass is lower, flowability is good than the copper-nickel alloy alloy when casting; Need control the volatilization of zinc element during the brass continuous casting, and copper-nickel alloy there is not this problem; H90 brass thermal conductivity is about 4 times of B30 copper-nickel alloy, and setting rate is fast than copper-nickel alloy in castingprocesses; Brazed copper tube residualinternal stress influence in the course of processing is bigger, need residualinternal stress is eliminated processing, and the copper-nickel alloy alloy need not special disposal.For above-mentioned reasons, the continuous casting that this invention provided, shape with process parameters range such as thermal treatment and only be fit to the production of copper-nickel alloy tubing, and can not apply to the production of brass pipe.Therefore, solve the problems referred to above that present brass pipe production exists, need be according to the own characteristic of brass pipe, by further investigation, invent a kind of heating means more efficient energy-saving, need not process annealing or only need a small amount of low-temperature annealing, be fit to brass continuous casting, processing and heat treated special process.
Summary of the invention
The purpose of this invention is to provide a kind of novel method of lacking flow process, High-efficient Production brass pipe, this method can shorten brass straight tube/coil pipe technological process of production, reduces production costs.
Technical scheme of the present invention is: use a kind of hot cold combination casting mold continuous casting technology High-efficient Production of less energy-consumption to have axial orientation tissue, the superior in quality brass pipe blanks of surfaces externally and internally, do not carrying out directly pipe being carried out post forming processing under the plane skin disposition of surface, need not carry out process annealing in the shaping course of processing or only need a small amount of low-temperature annealing, High-efficient Production brass pipe.The characteristics of the cold combination casting mold of described heat continuous casting are that continuous cast mold is by heated pattern of fever section be recycled water and force refrigerative cold mould section to combine, be positioned near the intersection of pattern of fever section and cold mould section by control position, tubing freezing interface, realize the efficient production great surface quality, have the pipe of axial orientation tissue.
A kind of brass pipe short flow high efficiency production method, concrete steps are as follows:
Step 1: adopting hot cold combination casting mold horizontal casting to prepare diameter is Ф 30～120mm, wall thickness is the brass pipe blanks of 3～30mm, and its technology is: according to the concrete composition difference of brass, the temperature of fusion of brass is 1000～1180 ℃, zinc content is high more, and temperature of fusion is low more.Zinc element volatilizees easily and reduces during owing to melting, should adopt charcoal fully to cover in the melting process, to alleviate the volatilization of zinc element, simultaneously, every 1-2 hour the alloying constituent in the smelting furnace is detected, constantly replenishes zinc element, with the composition that guarantees alloy in acceptable ranges.Equally, according to the concrete composition of brass, its holding temperature is 1030～1200 ℃, and 1000～1180 ℃ of pattern of fever (casting mold heating) temperature adopt resistive heating, heating power 3～5kW; Cold mould water coolant (water cooling copper sleeve) flow 300～1000L/h, pulling speed 50～500mm/min;
Step 2: different according to two class straight tube classes and coil pipe class pipe material product, adopt two kinds of different subsequent machining technologies: (1) brass straight tube production process, it is cold rolling or three-roller planetary is rolling pipe described in the step 1 directly can be carried out multi-pass, rolling total deformation 50%～95%, cold rolling single pass heavy deformation≤20%～25%, the rolling single pass heavy deformation of three-roller planetary can reach 95%; In the operation of rolling; when reaching 90%, cumulative deformation can carry out low temperature recovery annealing (process annealing); to guarantee that the existing good cold-forming property of tubing keeps the orientation tissue again; 200～350 ℃ of annealing temperatures, annealing time 0.5～2h, Annealing Protection atmosphere 2% hydrogen+surplus nitrogen; can not anneal yet; decide on the machining deformation degree, by the producible brass straight tube of above-mentioned technology diameter Ф 10～45mm, wall thickness 0.5～5mm.(2) brass coil pipe production process is carried out the cold rolling or three-roller planetary rolling deformation of multi-pass of total deformation≤50%～70% with pipe, and the pipe after rolling draws or three finishing before drawing in row once dish drawing through polyphone again, and acquisition is used for the coil pipe base that follow-up dish draws; Coil pipe base after the finishing can carry out low temperature recovery annealing, 200～350 ℃ of annealing temperatures, annealing time 0.5～2h, Annealing Protection atmosphere 2% hydrogen+surplus nitrogen, can not anneal yet, decide (when cumulative deformation reaches 90%, can arrange annealing) on the machining deformation degree; Adopt plate drawing machine that unannealed or annealed coil pipe base is carried out follow-up dish and pull into shape, follow-up dish is evened up equal passage coefficient of extension 1.35～1.55, dish pulling rate degree 1～1000m/min, but production of copper coil diameter Ф 4～30mm, wall thickness 0.3～2mm.
Step 3: the tubing after the horizontal wrapping machine of employing draws the step 2 mid-game carries out after-combustion, and the brass straight tube then directly enters next step.
Step 4: the brass straight tube adopts roller bottom type continuous bright annealing furnace; the brass coil pipe adopts building formula annealing furnace to anneal; 300～500 ℃ of annealing temperatures; the furnace gas protective atmosphere adopts based on nitrogen; nitrogen, the hydrogen mixed gas of hydrogen content lower (≤3%) adopt the higher shielding gas of purity to carry out interior purging, the continuous air inlet of sweeping gas in the pipe; 200～350 ℃ of initial purging temperature, gaseous tension are 0.3～0.6 MPa.To the half-hard state product, then cold working brass should carry out stress relieving annealing at 270～350 ℃, with the corrosion cracking that eliminates stress.
Characteristics of described brass pipe productive technology of short flow are that the resistive heating that adds the thermal recovery less energy-consumption of the pattern of fever section of the cold combination casting mold of described heat continuous casting is compared with induction heating, and the capacity usage ratio height can significantly reduce energy expenditure, reduces production costs.Another characteristics of described brass pipe productive technology of short flow are, pipe need not to carry out process annealing in the post forming course of processing, or only need a small amount of low-temperature annealing (200～350 ℃ of annealing temperatures), can reduce energy expenditure, reduce cost, raise the efficiency.
The invention has the advantages that:
1, the brass pipe that adopts hot cold combination casting mold horizontal continuous casting process production is as blank, because this blank surfaces externally and internally quality height, (outside surface revolves and mills need not carry out the surfaces externally and internally processing, the internal surface brush mills), can directly carry out follow-up rollingly, reduce operation, improve lumber recovery;
2, production method provided by the present invention and subsequent machining technology thereof are compared with present brass pipe production method, and Production Flow Chart is shortened, and energy consumption reduces, and production efficiency improves.Compare with the conventional extruded production technique, removed extrusion process and supporting with it big energy consumption equipment, shortened flow process; Compare with casting and roll process, because the pipe that casting and roll process production is adopted has flourishing radially columanar structure, this kind pipe is because plastic deformation ability is relatively poor, and it is less to carry out cold worked deflection under unannealed situation continuously, so production efficiency is lower; And pipe of the present invention has vertically the tissue of orientation, in extending axially processing (rolling and dish draws) process, can keep plastic working ability preferably and need not or only need a small amount of process annealing processing so production efficiency height.
3, the present invention is directed to the brass fusing point characteristics lower, adopt the resistive heating pattern of fever, compare, significantly reduced energy consumption, help reducing production costs with the productive technology of short flow of copper-nickel alloy than copper-nickel alloy;
4, production method process annealing number of times provided by the present invention significantly reduces, and annealing temperature also significantly reduces, even need not process annealing, not only helps save energy more, and helps enhancing productivity.
Embodiment:
Embodiment 1:Be of a size of the production method of Ф 45 * 5mmH96 brass straight tube
1. adopt hot cold combination casting mold horizontal casting to prepare diameter Ф 120 * 30mm pipe, 1180 ℃ of copper alloy liquid temperature of fusion, 1200 ℃ of holding temperatures, 1180 ℃ of pattern of fever (casting mold heating) temperature, adopt resistive heating, heating power 5kW, cold mould water coolant (water cooling copper sleeve) flow 1000L/h, pulling speed 150mm/min.
2. it is cold rolling pipe prepared in the step 1 to be carried out three roller periodics of 4～8 passages, and average pass deformation is 20%, and each pass deformation reduces gradually with the increase of cumulative deformation, can not carry out process annealing in the operation of rolling.
3. will roll back tubing and carry out clean annealing, 500 ℃ of annealing temperatures, annealing time 40min; furnace gas protective atmosphere 2% hydrogen+surplus nitrogen adopts pure nitrogen gas to carry out interior purging, the continuous air inlet of sweeping gas in the pipe; 200 ℃ of initial purging temperature, gaseous tension are 0.4 MPa.
Embodiment 2:Be of a size of the production method of Ф 10 * 0.5mmH80 brass straight tube
1. adopt hot cold combination casting mold horizontal casting to prepare diameter Ф 50 * 5mm pipe, 1100 ℃ of copper alloy liquid temperature of fusion, 1120 ℃ of holding temperatures, 1100 ℃ of pattern of fever (casting mold heating) temperature, adopt resistive heating, heating power 3kW, cold mould water coolant (water cooling copper sleeve) flow 450L/h, pulling speed 200mm/min.
2. pipe prepared in the step 1 is carried out a time planetary rolling, total deformation 90～95%.
3. will roll back tubing and carry out clean annealing, 400 ℃ of annealing temperatures, annealing time 30min; furnace gas protective atmosphere 2% hydrogen+surplus nitrogen adopts pure nitrogen gas to carry out interior purging, the continuous air inlet of sweeping gas in the pipe; 200 ℃ of initial purging temperature, gaseous tension are 0.4 MPa.
Embodiment 3:Be of a size of the production method of Ф 30 * 2mm H80 brass coil pipe
1. adopt hot cold combination casting mold horizontal casting to prepare diameter Ф 100 * 15mm pipe, 1100 ℃ of copper alloy liquid temperature of fusion, 1120 ℃ of holding temperatures, 1100 ℃ of pattern of fever (casting mold heating) temperature, adopt resistive heating, heating power 3kW, cold mould water coolant (water cooling copper sleeve) flow 700L/h, pulling speed 150mm/min.
2. pipe prepared in the step 1 is carried out a time planetary rolling, total deformation 40%～90%.
3. the polyphone that the pipe after will rolling carries out 1～3 passage draws or three draws, deflection 15%～25%, and purpose is that tubing is coiled finishing before drawing.
4. adopt inverted plate drawing machine to coil and draw, average passage coefficient of extension is 1.4, and the stretching passage is 3～4 passages, dish pulling rate degree 500m/min.
5. the tubing after the horizontal wrapping machine of employing draws dish carries out after-combustion.
6. brass coil pipe material is carried out clean annealing, 400 ℃ of annealing temperatures, annealing time 40min; furnace gas protective atmosphere 2% hydrogen+surplus nitrogen adopts pure nitrogen gas to carry out interior purging, the continuous air inlet of sweeping gas in the pipe; 200 ℃ of initial purging temperature, gaseous tension are 0.4 MPa.
Embodiment 4:Be of a size of the production method of Ф 4 * 0.3mm H65 brass coil pipe
1. adopt hot cold combination casting mold horizontal casting to prepare diameter Ф 50 * 5mm pipe, 1000 ℃ of copper alloy liquid temperature of fusion, 1030 ℃ of holding temperatures, 1030 ℃ of pattern of fever (casting mold heating) temperature, cold mould water coolant (water cooling copper sleeve) flow 450L/h, pulling speed 200mm/min.
2. pipe prepared in the step 1 is carried out a time planetary rolling, total deformation 50%～95%.
3. the polyphone that the tubing after will rolling carries out 1～3 passage draws or three draws, deflection 15%～25%, and purpose is that tubing is coiled finishing before drawing.
4. the pipe after the finishing is carried out low temperature recovery annealing, annealing temperature is 300 ℃, and annealing time is 30min, protective atmosphere 2% hydrogen+surplus nitrogen.
5. adopt inverted plate drawing machine to coil and draw, average passage coefficient of extension is 1.4, and the stretching passage is 4～6 passages, dish pulling rate degree 500m/min.
6. the tubing after the horizontal wrapping machine of employing draws dish carries out after-combustion.
7. the tubing after dish being drawn carries out clean annealing, 300 ℃ of annealing temperatures, annealing time 30min; furnace gas protective atmosphere 2% hydrogen+surplus nitrogen adopts pure nitrogen gas to carry out interior purging, the continuous air inlet of sweeping gas in the pipe; 200 ℃ of initial purging temperature, gaseous tension are 0.4 MPa.
Claims (2)
1. brass pipe short flow high efficiency production method, it is characterized in that continuous cast mold is by heated pattern of fever section be recycled water and force refrigerative cold mould section to combine, be positioned near the intersection of pattern of fever section and cold mould section by control position, tubing freezing interface, realize the efficient production great surface quality, have the pipe of axial orientation tissue; Concrete steps are as follows:
Step 1: adopting hot cold combination casting mold horizontal casting to prepare diameter is Ф 30～120mm, wall thickness is the brass pipe blanks of 3～30mm, and its technology is: according to the concrete composition difference of brass, the temperature of fusion of brass is 1000～1180 ℃, zinc content is high more, and temperature of fusion is low more; Zinc element volatilizees easily and reduces during owing to melting, should adopt charcoal fully to cover in the melting process, to alleviate the volatilization of zinc element, simultaneously, every 1-2 hour the alloying constituent in the smelting furnace is detected, constantly replenishes zinc element, with the composition that guarantees alloy in acceptable ranges; Equally, according to the concrete composition of brass, its holding temperature is 1030～1200 ℃, and 1000～1180 ℃ of pattern of fever temperature adopt resistive heating, heating power 3～5kW; Cold mould water cooling copper sleeve cooling water flow 300～1000L/h, pulling speed 50～500mm/min;
Step 2: different according to two class straight tube classes and coil pipe class pipe material product, adopt two kinds of different subsequent machining technologies: (1) brass straight tube production process, it is cold rolling or three-roller planetary is rolling that pipe described in the step 1 is directly carried out multi-pass, rolling total deformation 50%～95%, cold rolling single pass heavy deformation≤20%～25%, the rolling single pass heavy deformation of three-roller planetary reaches 95%; In the operation of rolling, when reaching 90%, cumulative deformation carries out low temperature recovery annealing, to guarantee that the existing good cold-forming property of tubing keeps the orientation tissue again, 200～350 ℃ of annealing temperatures, annealing time 0.5～2h, Annealing Protection atmosphere 2% hydrogen+surplus nitrogen, the brass straight tube diameter Ф 10～45mm of production, wall thickness 0.5～5mm;
(2) brass coil pipe production process is carried out the cold rolling or three-roller planetary rolling deformation of multi-pass of total deformation≤50%～70% with pipe, and the pipe after rolling draws or three finishing before drawing in row once dish drawing through polyphone again, and acquisition is used for the coil pipe base that follow-up dish draws; Coil pipe base after the finishing can carry out low temperature recovery annealing, 200～350 ℃ of annealing temperatures, and annealing time 0.5～2h, Annealing Protection atmosphere is 2% hydrogen+surplus nitrogen; Adopt plate drawing machine that the coil pipe base is carried out follow-up dish and pull into shape, follow-up dish is evened up equal passage coefficient of extension 1.35～1.55, dish pulling rate degree 1～1000m/min, the bronze pan tube diameter Ф 4～30mm of production, wall thickness 0.3～2mm;
Step 3: the tubing after the horizontal wrapping machine of employing draws the step 2 mid-game carries out after-combustion, and the brass straight tube then directly enters next step;
Step 4: the brass straight tube adopts roller bottom type continuous bright annealing furnace, the brass coil pipe adopts building formula annealing furnace to anneal, 300～500 ℃ of annealing temperatures, the furnace gas protective atmosphere adopts based on nitrogen, the nitrogen of hydrogen content≤3%, hydrogen mixed gas adopt the higher shielding gas of purity to carry out interior purging, the continuous air inlet of sweeping gas in the pipe, 200～350 ℃ of initial purging temperature, gaseous tension are 0.3～0.6 MPa; To the half-hard state product, then cold working brass should carry out stress relieving annealing at 270～350 ℃, with the corrosion cracking that eliminates stress.
2. a kind of brass pipe short flow high efficiency production method as claimed in claim 1 is characterized in that brass straight tube and brass coil pipe can not anneal, and decides on the machining deformation degree; For the brass coil pipe, when reaching 90%, can arrange cumulative deformation annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210692A CN102260840B (en) | 2011-07-26 | 2011-07-26 | Short-flow efficient production method for brass tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110210692A CN102260840B (en) | 2011-07-26 | 2011-07-26 | Short-flow efficient production method for brass tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102260840A true CN102260840A (en) | 2011-11-30 |
| CN102260840B CN102260840B (en) | 2012-10-17 |
Family
ID=45007670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110210692A Active CN102260840B (en) | 2011-07-26 | 2011-07-26 | Short-flow efficient production method for brass tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102260840B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658572A (en) * | 2013-12-29 | 2014-03-26 | 山东亨圆铜业有限公司 | Copper pipe horizontal continuous casting gas shield crystallizer and method for preparing copper alloy pipe through copper pipe horizontal continuous casting gas shield crystallizer |
| CN103866157A (en) * | 2014-03-11 | 2014-06-18 | 宁波金田铜管有限公司 | High-strength corrosion-resistant micro-alloying copper pipe and manufacturing method thereof |
| CN104028579A (en) * | 2014-06-11 | 2014-09-10 | 昆山德泰新材料科技有限公司 | Method for producing high-cleanliness metal pipe for solar gravity assisted heat pipe |
| CN104607882A (en) * | 2015-02-08 | 2015-05-13 | 浙江同诚合金铜管有限公司 | Pickling-free manufacturing method for copper alloy pipe with cast rolling method |
| CN106583672A (en) * | 2016-12-09 | 2017-04-26 | 北京科技大学 | Graphite composite casting mold and copper-chromium alloy horizontal continuous casting process |
| CN106623830A (en) * | 2017-03-21 | 2017-05-10 | 江苏省冶金设计院有限公司 | Single-roll production device and method for copper alloy bar |
| CN107052706A (en) * | 2017-04-10 | 2017-08-18 | 无锡隆达金属材料有限公司 | The production technology of the nickel yellow copper pipes of Kinds of Heavy Coil HNi65 5 |
| CN108405820A (en) * | 2018-03-23 | 2018-08-17 | 江西鸥迪铜业有限公司 | A kind of horizontal casting Rolling Production brass tube technique |
| CN109127770A (en) * | 2018-08-21 | 2019-01-04 | 佛山市顺德区精艺万希铜业有限公司 | Mosquito-repellent incense type dissipates greatly disk production method and system |
| CN109175283A (en) * | 2018-10-29 | 2019-01-11 | 福建紫金铜业有限公司 | A kind of heat pipe material pipe processing technique |
| CN109894590A (en) * | 2019-03-28 | 2019-06-18 | 北京科技大学 | A kind of continuous casting installation for casting and method of major diameter copper alloy tube |
| CN109909315A (en) * | 2019-03-28 | 2019-06-21 | 中铝材料应用研究院有限公司 | A kind of processing technology of high-precision thin-walled fine aluminium or aluminium alloy pipe |
| CN111876571A (en) * | 2020-07-23 | 2020-11-03 | 常州大学 | Production method for improving comprehensive mechanical property of T91 seamless steel tube |
| CN115008141A (en) * | 2022-08-05 | 2022-09-06 | 江苏允能新材料科技有限公司 | Casting-rolling manufacturing method of brass pipe and brass pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028644A (en) * | 2007-04-10 | 2007-09-05 | 中铝洛阳铜业有限公司 | Short flow-path production of copper and copper alloy precisive pipe |
| CN101966564A (en) * | 2010-10-09 | 2011-02-09 | 北京科技大学 | Hot-cold combined casting mould horizontal continuous casting equipment of cupronickel tubing and technology thereof |
-
2011
- 2011-07-26 CN CN201110210692A patent/CN102260840B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028644A (en) * | 2007-04-10 | 2007-09-05 | 中铝洛阳铜业有限公司 | Short flow-path production of copper and copper alloy precisive pipe |
| CN101966564A (en) * | 2010-10-09 | 2011-02-09 | 北京科技大学 | Hot-cold combined casting mould horizontal continuous casting equipment of cupronickel tubing and technology thereof |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658572A (en) * | 2013-12-29 | 2014-03-26 | 山东亨圆铜业有限公司 | Copper pipe horizontal continuous casting gas shield crystallizer and method for preparing copper alloy pipe through copper pipe horizontal continuous casting gas shield crystallizer |
| CN103866157A (en) * | 2014-03-11 | 2014-06-18 | 宁波金田铜管有限公司 | High-strength corrosion-resistant micro-alloying copper pipe and manufacturing method thereof |
| CN104028579A (en) * | 2014-06-11 | 2014-09-10 | 昆山德泰新材料科技有限公司 | Method for producing high-cleanliness metal pipe for solar gravity assisted heat pipe |
| CN104607882A (en) * | 2015-02-08 | 2015-05-13 | 浙江同诚合金铜管有限公司 | Pickling-free manufacturing method for copper alloy pipe with cast rolling method |
| CN106583672B (en) * | 2016-12-09 | 2018-09-25 | 北京科技大学 | A kind of copper chromium alloy horizontal continuous casting process |
| CN106583672A (en) * | 2016-12-09 | 2017-04-26 | 北京科技大学 | Graphite composite casting mold and copper-chromium alloy horizontal continuous casting process |
| CN106623830A (en) * | 2017-03-21 | 2017-05-10 | 江苏省冶金设计院有限公司 | Single-roll production device and method for copper alloy bar |
| CN107052706B (en) * | 2017-04-10 | 2019-09-20 | 无锡隆达金属材料有限公司 | The production technology of Kinds of Heavy Coil HNi65-5 nickel yellow copper pipe |
| CN107052706A (en) * | 2017-04-10 | 2017-08-18 | 无锡隆达金属材料有限公司 | The production technology of the nickel yellow copper pipes of Kinds of Heavy Coil HNi65 5 |
| CN108405820B (en) * | 2018-03-23 | 2019-11-26 | 江西鸥迪铜业有限公司 | A kind of horizontal casting Rolling Production brass tube technique |
| CN108405820A (en) * | 2018-03-23 | 2018-08-17 | 江西鸥迪铜业有限公司 | A kind of horizontal casting Rolling Production brass tube technique |
| CN109127770A (en) * | 2018-08-21 | 2019-01-04 | 佛山市顺德区精艺万希铜业有限公司 | Mosquito-repellent incense type dissipates greatly disk production method and system |
| CN109175283A (en) * | 2018-10-29 | 2019-01-11 | 福建紫金铜业有限公司 | A kind of heat pipe material pipe processing technique |
| CN109175283B (en) * | 2018-10-29 | 2020-05-01 | 福建紫金铜业有限公司 | Heat pipe material pipe processing technology |
| CN109894590A (en) * | 2019-03-28 | 2019-06-18 | 北京科技大学 | A kind of continuous casting installation for casting and method of major diameter copper alloy tube |
| CN109909315A (en) * | 2019-03-28 | 2019-06-21 | 中铝材料应用研究院有限公司 | A kind of processing technology of high-precision thin-walled fine aluminium or aluminium alloy pipe |
| CN111876571A (en) * | 2020-07-23 | 2020-11-03 | 常州大学 | Production method for improving comprehensive mechanical property of T91 seamless steel tube |
| CN111876571B (en) * | 2020-07-23 | 2022-03-01 | 常州大学 | Production method for improving comprehensive mechanical property of T91 seamless steel tube |
| CN115008141A (en) * | 2022-08-05 | 2022-09-06 | 江苏允能新材料科技有限公司 | Casting-rolling manufacturing method of brass pipe and brass pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102260840B (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102260840B (en) | Short-flow efficient production method for brass tubes | |
| CN101966564B (en) | Hot-cold combined casting mould horizontal continuous casting equipment of cupronickel tubing and technology thereof | |
| CN102154599B (en) | Short-flow high-efficiency production method for white brass alloy pipes | |
| CN106583491B (en) | A kind of manufacturing method of Cr-Ni-Mo-Nb nickel-base alloy seamless pipe | |
| CN102294579B (en) | Method for manufacturing thin-wall and ultra-long nickel-copper alloy pipes | |
| CN101619780B (en) | Technological method for upwardly continuously casting, rolling, drawing and producing copper alloy tubes | |
| CN100496808C (en) | Short flow-path production of copper and copper alloy precise pipe | |
| CN105312353B (en) | A kind of large diameter thin wall copper-nickel alloy tubing short-flow production method | |
| CN102463272A (en) | Short-flow preparation method of minor-caliber nickel-based alloy thin-wall tubes | |
| CN103170797B (en) | The Compound Extrusion preparation method of a kind of major diameter high-quality pipe or ring base | |
| CN101709403B (en) | Method for preparing brass seamless tubes by adopting hollow ingots | |
| CN101502872A (en) | Shortened method for producing oxygen-free copper belt | |
| CN102371288A (en) | Preparation method of high-precision and high-strength titanium alloy seamless tube | |
| CN102345035B (en) | Production process for titanium and nickel shape memory alloy material | |
| CN114101372B (en) | High-strength TC18 titanium alloy seamless pipe efficient low-cost preparation method | |
| CN101279331A (en) | Wire hydrostatic extrusion device and method for extruding superfine grain wire using the device | |
| CN109909315B (en) | Processing technology of high-precision thin-wall pure aluminum or aluminum alloy pipe | |
| CN110170543A (en) | A kind of titanium alloy seamless pipe short route processing method | |
| CN104043943A (en) | Manufacturing process of cupronickel pipe | |
| CN109821927B (en) | Production method of large-diameter white copper pipe | |
| CN102304686B (en) | Short-flow efficient production method of pure copper tube | |
| CN105441713A (en) | A titanium alloy seamless tube and a manufacturing method thereof | |
| CN101623716B (en) | Preparation method of metal tube | |
| CN109894590B (en) | Continuous casting equipment and method for large-diameter copper alloy pipe | |
| CN107475651A (en) | Magnesium alloy extrusion sectional die and its casting extrusion shearing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |