CN1019750B - 冷加工铜及铜合金管的方法 - Google Patents
冷加工铜及铜合金管的方法Info
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- CN1019750B CN1019750B CN88101739A CN88101739A CN1019750B CN 1019750 B CN1019750 B CN 1019750B CN 88101739 A CN88101739 A CN 88101739A CN 88101739 A CN88101739 A CN 88101739A CN 1019750 B CN1019750 B CN 1019750B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 238000005097 cold rolling Methods 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 238000005482 strain hardening Methods 0.000 claims description 18
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000009997 thermal pre-treatment Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 11
- 238000010622 cold drawing Methods 0.000 description 11
- 238000000137 annealing Methods 0.000 description 7
- 238000003801 milling Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/20—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/005—Copper or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
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- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metal Rolling (AREA)
- Metal Extraction Processes (AREA)
- Extrusion Of Metal (AREA)
- Heat Treatment Of Steel (AREA)
- Supports For Pipes And Cables (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Stringed Musical Instruments (AREA)
Abstract
本发明涉及一种制造铜及其合金管的方法，其中用PSW行星斜辊轧制方法对铜或铜合金材料所构成的管坯进行冷轧，在单一道次中，其冷轧的面积缩减率至少为70%，其面积缩减和材料变形所产生的内摩擦可使管坯的温度升至250℃至700℃，冷轧后管子的晶粒度可保持在0.005至0.050毫米范围内。
Description
本发明涉及用冷加工作业由连续铸坯件来制造铜及其合金管的方法，使这类坯料的温度在变形阻力的影响下升高到再结晶温度范围。具体地说，此方法涉及到对铜、铝、镍、锆与钛以及它们的各种合金之类的有色金属制成的坯件，作进一步的加工。
在制造铜与铜合金的半成品过程中，作为从圆坯与扁坯之类铸锭进一步加工锭件的普遍采用之现有技术的工艺方法，乃是先进行热加工而后继以冷加工的。热加工阶段例如有轧制、挤压或穿孔，而冷加工阶段例如包括轧制、拉制用皮尔格式轧管机轧管。然后对各项制品根据涉及的类型作特殊的进一步处理。
为了减少制造过程中的加工阶段，现代冶金工业越来越多地采用连续铸造法，而其目的在于获得这样的铸坯，使其尺寸尽可能接近最终产品的尺寸。与这些有关，这种铸造法还称作为暗模式连续铸造法。在连续铸造中形成之铸坯的晶体结构，例如一种管坯的晶体结构，必然是粗晶粒的和不均匀的。这就给进一步处理这种制品带来了一些特殊问题。对于板带一类具有小横断面积的连续铸坯来说，上述的进一步处理通常是冷加工。但是，在此类铸坯中
形成的粗晶粒和不均匀结构，特别是在管材的冷加工中，通常会在它上面生成所谓的桔皮面，此种缺陷在最终制品上仍然可见，妨碍了它在最后检查中获得通过。这种结构的另一缺点是，当冷加工过程继续进行而没有一个生产中通常采用的中间退火阶段时，所加工的材料于初期阶段就业已产生会导致其破裂的裂纹。这种情况尤其普遍发生于材料本身必须在张力下弯曲时，例如将拉拔机应用于拉管时的情况。
按照制管工艺中的一种通用方法，经挤压的管坯首先是在皮尔格式轧管机中冷轧，然后用拉拔机拉管。但是皮尔格轧管的费用很高，而另一个值得提出的缺点是，管坯可能有的偏心率是不能用皮尔格式轧管机来校正的。
正如业已指出过的，就铸锭以及部分地连续铸造来说，热加工乃是前述问题的传统解决方法。利用热加工方法也可解决因铸造后不均匀晶体结构所引起的问题。众所周知，金属与合金在热加工过程中会再结晶，从而可以均匀化。但是应用热加工技术时，特别是把它用于铜、铝及它们的合金之连续铸造的、具有小横截面积的坯件时，在经济上是太不合算了。
SMS Schloemann-Siemag联合公司开发了一种行星轧制技术，其中将三个锥形轧辊按相互间成120°角排列。这些辊绕其自身轴线同时也围绕此整个行星轧辊系统的中心轴线转动。在单一道次中所获得的面积缩减率是很高的，甚至超过90%，行星
轧机通常用缩写字PSW（德文字Planetenschragwalzwerk）表示，该设备有着几项专利保护。
到目前为止，行星轧机已用于轧钢。在轧管时，预热过的坯件首先进入例如穿管机，而后进入PSW轧机。这样，在用行星轧机轧钢时，常常采用传统的热加工方法。
在加工有色金属，特别是铜、铝、锆与钛及其各自的合金时，意外地发现到，要是在冷加工中由于材料本身的面积高度缩小与内摩擦，材料的温度升高到再结晶范围，则在未进行独立预热或未作独立的中间退火处理的条件下，在材料的微结构方面取得了良好的最终结果。
本发明的目的就是提供一种用PSW行星轧机以高于70%的变形率在再结晶状态下冷轧制造内部结构的晶粒度在0.005-0.050毫米范围内的、可后续冷加工的铜及其合金管的方法。
为达到本发明的目的，本发明采用了一种制造金属管材的方法，其特征在于，用PSW行星斜辊轧制方法对铜或铜合金材料所构成的管材进行轧制，在单一道次中，其冷轧的面积缩减率至少为70%，其面积缩减和材料变形所产生的内摩擦可使管材的温度升至250℃至700℃，冷轧后的管材晶粒度可保持在0.005至0.050毫米范围内。
冷加工一般是指，所处理的材料在未经任何预热处理下进行，且此材料的温度在这一加工阶段仍保持在再结晶温度下的一个
过程。当冷加工涉及到本发明时，我们把这种加工看作是，在其过程开始时的温度为环境温度，而在此过程中间，温度基本上升到高于通常的冷加工温度，即达到所涉材料的再结晶范围。
在所从事的实验中业已证明，于此种加工过程，由于材料因面积大量缩减与内摩擦而形成的变形阻力，使材料的温度升到250°-750℃范围。实验结果表明，铜与铜合金合适的再结晶温度在250°-700℃范围。通过调节冷却设备。可以对各种所涉及的材料将此种加工温度调节到合适的范围内。这种至少已部分再结晶的结构允许由冷加工作进一步的处理，例如用拉拔机拉管，而不会有任何使材料产生裂纹的风险。
此外，本发明还有这样的优点，在此种加工过程中的温度升高之时效性很短，所以避免了表面有过度晶粒生长和过量氧化的危险。从此加工阶段出来的材料其晶粒度是很小的，约为0.005-0.050毫米。
在冷加工管坯时，为了将温度提高到再结晶范围，业已证明行星轧制是一种合适的方法。在管坯内，例如最好是在80/40毫米直径的管坯内，用一芯棒载运架将一芯棒置于其中，将此管坯轧制成直径尺寸至少是55/40毫米，而最有利的是把它轧成45/40毫米的尺寸，然后进行拉制。
要是冷加工过程引起的温度升高不足以使材料再结晶，则可将材料稍加预热以提高这一温度，例如采用感应线圈，使料坯在紧
邻冷加工阶段之前通过其中。
由以上说明可知，连续铸造的材料是极其适合供给于PSW轧机的。除此之外，例如挤压的管坯也可以是这样一类材料。于是，价昂的皮尔格式轧机就能够由价廉的PSW轧机取代，同时还能实现其它一些优点：在此种加工过程，材料中有较好的微结构，并且能够减小管坯的偏心率。本发明之最为有利的另一种形式是，在管的生产中采用较廉价的连续铸造-PSW轧制设备的组合工艺，用它能取代花费高的坯件铸造-挤压（或穿孔）-皮尔格式轧制工艺。
本发明将通过下述实例作进一步阐明。
例1（现有技术）
在皮尔格式轧管机中轧制了一种由脱氧磷铜（Cu-DHP）制成的连续铸造管坯。管坯的初始尺寸为80/60毫米，而铸件结构的晶粒度为1-20毫米。轧制是成功的。轧出的管之尺寸为44/40毫米，而铸件结构业已转变成加工硬化的结构。管子的硬度在120-130HVS范围。但是，依上述方式轧制成的管不能经受拉拔机拉制，仅仅是在平直的拉拔机上拉制时才是成功的。为了用拉拔机来拉制按上述方式生产出的管，要求有一个中间退火阶段。于是，在轧制过程未予消失的铸件结构就会维持，因为在这种轧制作业中，材料的温度仍然是低的。此外，由于这种粗晶粒的铸件结构，表面质量是不能令人满意的。
例2（现有技术）
尺寸为80/40毫米的一种连续铸造管坯在一拉拔机上沿直线被拉制，管子的表面质量差，而在用拉拔机拉拔并无中间退火条件下时是不能继续进行这种拉制的。这是由于此铸件的结构无法承受很高的减径比。此管坯所用材料与上例中的相同，类似地，铸坯与加工硬化结构以及冷加工后之管的硬度保持在上述同一范围。
例3（现有技术）
将尺寸为280×660毫米由脱氧磷铜（Cu-DHP）制成之铸坯挤压出的一种规格为80/60毫米，晶粒度约为0.1毫米的管坯，于皮尔格式轧管机中轧制成44/40毫米尺寸。这样轧出之管的硬度约为120-130HVS，而其结构为加工硬化结构。用拉拔机在没有中间退火条件下将此管进一步加工成最终尺寸。必要时，可对此最终制品施行软退火。
例4
将直径为80/40毫米而结构为通常铸件结构（晶粒度：1-20毫米）的脱氧磷铜（Cu-DHP）制的一种连续铸造的管坯，
于PSW轧机轧成46/40毫米的尺寸。轧制是成功的，而由此轧出的管也能进一步由拉拔机拉制。至于此轧出之管的微结构，观察到它的晶粒度很小，为0.005-0.015毫米，这说明该结构在此轧制过程中已然发生了再结晶。轧成之管的硬度为75-
80HVS，意味着不需进行软退火。此管子经六台拉拔机拉拔，获得18/16.4毫米的尺寸。经此拉拔后，管子的硬度为132HVS。
例5
将尺寸为80/40毫米由无氧铜（Cu-OF）制的一种挤压成的管坯，于PSW轧机中轧成46/40毫米尺寸。轧制是成功的，其结构由于在此加工过程中温度升高的影响已然再结晶。所轧成之管的晶粒度约为0.010毫米而硬度约为80HVS。
Claims (6)
1、一种制造铜及其合金管的方法，其特征在于：用PSW行星斜辊轧制方法对铜或铜合金材料所构成的管坯进行冷轧，在单一道次中，其冷轧的面积缩减率至少为70%，其面积缩减和材料变形所产生的内摩擦，可使管坯的温度升至250℃至700℃，冷轧后管子的晶粒度可保持在0.005至0.050毫米范围内。
2、一种按照权利要求1所述的制造铜及其合金管的方法，其特征在于在此冷加工过程中，管坯在紧接着冷轧之前进行了预热处理。
3、一种按照权利要求2所述的制造铜及其合金管的方法，其特征在于此预热处理是用感应线圈进行的。
4、一种按照权利要求1所述的制造铜及其合金管的方法，其特征在于被加工的管坯是由连续铸造法制成的。
5、一种按照权利要求1所述的制造铜及其合金管的方法，其特征在于被加工的管坯由挤压所成。
6、一种按照权利要求1所述的制造铜及其合金管的方法，其特征在于所述温度是通过调节冷却设备来控制的。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI871344A FI77057C (fi) | 1987-03-26 | 1987-03-26 | Foerfarande foer framstaellning av roer, staenger och band. |
| FI871344 | 1987-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN88101739A CN88101739A (zh) | 1988-11-23 |
| CN1019750B true CN1019750B (zh) | 1992-12-30 |
Family
ID=8524207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88101739A Expired CN1019750B (zh) | 1987-03-26 | 1988-03-26 | 冷加工铜及铜合金管的方法 |
Country Status (28)
| Country | Link |
|---|---|
| US (1) | US4876870A (zh) |
| JP (1) | JP2540183B2 (zh) |
| KR (1) | KR910009976B1 (zh) |
| CN (1) | CN1019750B (zh) |
| AT (1) | AT391430B (zh) |
| AU (1) | AU600801B2 (zh) |
| BE (1) | BE1001676A5 (zh) |
| BG (1) | BG60198B2 (zh) |
| BR (1) | BR8801480A (zh) |
| CA (1) | CA1313780C (zh) |
| CH (1) | CH673844A5 (zh) |
| CS (1) | CS8801837A3 (zh) |
| DD (1) | DD280978A5 (zh) |
| DE (1) | DE3810261C2 (zh) |
| ES (1) | ES2007168A6 (zh) |
| FI (1) | FI77057C (zh) |
| FR (1) | FR2612818B1 (zh) |
| GB (1) | GB2202780B (zh) |
| IN (1) | IN166784B (zh) |
| IT (1) | IT1233875B (zh) |
| MX (1) | MX173615B (zh) |
| MY (1) | MY102742A (zh) |
| NL (1) | NL193867C (zh) |
| PL (1) | PL156320B1 (zh) |
| RU (1) | RU2025155C1 (zh) |
| SE (1) | SE503869C2 (zh) |
| TR (1) | TR23926A (zh) |
| YU (1) | YU46255B (zh) |
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| CN100435561C (zh) * | 1994-04-08 | 2008-11-19 | 株式会社日立制作所 | 活动图像及静止图像的摄像方法 |
| CN101218042B (zh) * | 2005-07-07 | 2012-12-05 | Sms西马格股份公司 | 制造由铜或铜合金组成的金属带的方法和生产线 |
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| EP0644272A3 (de) * | 1993-09-17 | 1995-06-07 | Mannesmann Ag | Verfahren zum Herstellung von Rohren aus Kupfer oder Kupferlegierungen. |
| IT1316715B1 (it) * | 2000-03-03 | 2003-04-24 | A M T Robotics S R L | Procedimento per la realizzazione di tubi metallici e relativaapparecchiatura |
| FI114900B (fi) * | 2000-12-20 | 2005-01-31 | Outokumpu Oy | Menetelmä ja laitteisto putkien valmistamiseksi |
| FI114901B (fi) * | 2000-12-20 | 2005-01-31 | Outokumpu Oy | Menetelmä ja laitteisto putkien valmistamiseksi valssaamalla |
| DE10107567A1 (de) * | 2001-02-17 | 2002-08-29 | Sms Meer Gmbh | Verfahren zum Kaltwalzen von nahtlosen Kupferrohren |
| US7967605B2 (en) | 2004-03-16 | 2011-06-28 | Guidance Endodontics, Llc | Endodontic files and obturator devices and methods of manufacturing same |
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| CN100372621C (zh) * | 2006-04-24 | 2008-03-05 | 江苏兴荣高新科技股份有限公司 | 一种铜铝复合管材的制造方法及该方法制造的铜铝复合管材 |
| CN101441911B (zh) * | 2008-12-31 | 2012-12-26 | 中铁建电气化局集团有限公司 | 一种接触线及杆坯的制备方法 |
| CN101569893B (zh) * | 2009-05-11 | 2012-10-24 | 金龙精密铜管集团股份有限公司 | 铝或铝合金无缝管的制造方法 |
| EP2803423B1 (en) * | 2013-02-04 | 2023-06-07 | La Farga Tub, S.L. | Copper tube for the construction industry and process for preparing it |
| CN103722040A (zh) * | 2013-11-18 | 2014-04-16 | 青岛盛嘉信息科技有限公司 | 一种铜板带的生产工艺方法 |
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| CN105964693B (zh) * | 2016-01-12 | 2018-02-02 | 江苏隆达超合金航材股份有限公司 | 镍基高温合金管的行星轧制生产工艺 |
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1987
- 1987-03-26 FI FI871344A patent/FI77057C/fi not_active IP Right Cessation
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1988
- 1988-03-07 TR TR88/0161A patent/TR23926A/xx unknown
- 1988-03-09 AU AU12825/88A patent/AU600801B2/en not_active Expired
- 1988-03-11 MY MYPI88000256A patent/MY102742A/en unknown
- 1988-03-11 IN IN63/BOM/88A patent/IN166784B/en unknown
- 1988-03-14 CH CH949/88A patent/CH673844A5/de not_active IP Right Cessation
- 1988-03-16 IT IT8819802A patent/IT1233875B/it active
- 1988-03-18 NL NL8800686A patent/NL193867C/nl not_active IP Right Cessation
- 1988-03-21 CS CS881837A patent/CS8801837A3/cs not_active IP Right Cessation
- 1988-03-22 CA CA000562124A patent/CA1313780C/en not_active Expired - Lifetime
- 1988-03-22 DD DD88313883A patent/DD280978A5/de not_active IP Right Cessation
- 1988-03-23 US US07/172,196 patent/US4876870A/en not_active Expired - Lifetime
- 1988-03-23 SE SE8801064A patent/SE503869C2/sv not_active IP Right Cessation
- 1988-03-23 GB GB8806897A patent/GB2202780B/en not_active Expired - Lifetime
- 1988-03-24 BE BE8800341A patent/BE1001676A5/fr not_active IP Right Cessation
- 1988-03-24 MX MX010874A patent/MX173615B/es unknown
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- 1988-03-24 PL PL1988271412A patent/PL156320B1/pl unknown
- 1988-03-25 JP JP63069947A patent/JP2540183B2/ja not_active Expired - Lifetime
- 1988-03-25 FR FR888803927A patent/FR2612818B1/fr not_active Expired - Lifetime
- 1988-03-25 AT AT0080288A patent/AT391430B/de not_active IP Right Cessation
- 1988-03-25 DE DE3810261A patent/DE3810261C2/de not_active Revoked
- 1988-03-25 ES ES8800934A patent/ES2007168A6/es not_active Expired
- 1988-03-25 KR KR1019880003262A patent/KR910009976B1/ko not_active IP Right Cessation
- 1988-03-25 YU YU60888A patent/YU46255B/sh unknown
- 1988-03-25 RU SU884355435A patent/RU2025155C1/ru active
- 1988-03-25 BR BR8801480A patent/BR8801480A/pt not_active IP Right Cessation
- 1988-03-26 CN CN88101739A patent/CN1019750B/zh not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435561C (zh) * | 1994-04-08 | 2008-11-19 | 株式会社日立制作所 | 活动图像及静止图像的摄像方法 |
| CN100440939C (zh) * | 1994-04-08 | 2008-12-03 | 株式会社日立制作所 | 活动图像和静止图像的摄像方法 |
| CN101218042B (zh) * | 2005-07-07 | 2012-12-05 | Sms西马格股份公司 | 制造由铜或铜合金组成的金属带的方法和生产线 |
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Assignee: Henan Jinlong Precise Copper Pipe Co., Ltd. Assignor: Outokumpu Oy Contract fulfillment period: The period of performance of the contract is 2004-11-17 to the contract period Contract record no.: Contract filing No. 041000030111 Denomination of invention: Method for cold processing copper and copper alloy tube Granted publication date: 19931006 License type: Common License Record date: 20041202 |
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