WO2014169593A1 - 超级13Cr工具接头的制造方法 - Google Patents

超级13Cr工具接头的制造方法 Download PDF

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WO2014169593A1
WO2014169593A1 PCT/CN2013/084876 CN2013084876W WO2014169593A1 WO 2014169593 A1 WO2014169593 A1 WO 2014169593A1 CN 2013084876 W CN2013084876 W CN 2013084876W WO 2014169593 A1 WO2014169593 A1 WO 2014169593A1
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super
manufacturing
tool joint
quenching
drill pipe
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PCT/CN2013/084876
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English (en)
French (fr)
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赵鹏
于杰
刘绍锋
张春霞
王鸣华
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宝山钢铁股份有限公司
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Priority to CA2891478A priority Critical patent/CA2891478C/en
Priority to US14/784,448 priority patent/US11162150B2/en
Publication of WO2014169593A1 publication Critical patent/WO2014169593A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/76Making machine elements elements not mentioned in one of the preceding groups
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • C21D1/30Stress-relieving
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/58Oils
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/11Joints, e.g. ball joints, universal joints
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D7/00Modifying the physical properties of iron or steel by deformation
    • C21D7/13Modifying the physical properties of iron or steel by deformation by hot working

Definitions

  • the present invention relates to a method of manufacturing a joint, and more particularly to a method of manufacturing a high alloy joint. Background technique
  • Drill pipes for oil and gas drilling are manufactured to API SPEC 5DP standards.
  • the structure is to frictionally butt weld an externally threaded drill pipe joint and an internally threaded drill pipe joint at both ends of the drill pipe body.
  • Drill rods conforming to the API SPEC 5 DP standard are made of low alloy steel.
  • Aluminum alloy drill pipes are produced in accordance with ISO 15546.
  • the aluminum alloy drill pipe is formed by connecting the aluminum alloy drill pipe body to a low alloy steel external thread joint and a low alloy steel internal thread joint through a fine thread.
  • the structure of the titanium drill pipe is similar to that of an aluminum alloy drill pipe.
  • the main purpose of using aluminum alloy drill pipe and titanium alloy drill pipe is twofold: one is to drill ultra-deep well by using aluminum alloy drill pipe and titanium alloy drill pipe with low specific gravity, and the other is to use aluminum alloy drill pipe and titanium alloy drill pipe. Resistance to sulfur sulfide stress corrosion drilling of sulfur-containing wells.
  • the object of the present invention is to provide a method for manufacturing a super 13Cr tool joint, by which a super 13Cr tool joint suitable for a super 13Cr drill pipe can be produced, and the drill pipe is used for mining.
  • C02 is a higher gas field.
  • the present invention provides a method of manufacturing a super 13Cr tool joint that includes the following steps:
  • the tool joint is normalized after forging, and the normalizing temperature is generally 80 (T950 ° C. This process will make the super 13Cr tool joint form martensite structure, so that the next steps It is difficult to carry out.
  • the technical solution adopts the stress relief annealing treatment at 600-700 °C, so that the microstructure of the treated super 13Cr tool joint is tempered martensite structure, thereby facilitating subsequent processing.
  • the chemical element mass distribution ratio of the super 13Cr tool joint is controlled as: C 0.0 ⁇ 0.05%, Si ⁇ 0.5%, Mn 0.2 to 1.0%, Cr 12 ⁇ 14%, Mo ⁇ 3%, Ni 4 ⁇ 6%, the balance is Fe and unavoidable impurities.
  • the forging temperature is 1150-1200 °C.
  • the quenching temperature is 950 to 1000 °C.
  • the quenching is oil quenching.
  • the quenching treatment is mainly performed by using a water-based quenching liquid having a certain medium concentration for overall quenching.
  • the quenching of water-based quenching liquid requires adjustment of the concentration of the medium.
  • the inventors have found through a large number of tests and analysis that if the concentration of the quenching liquid is too high, the quenching effect is not good; if the quenching liquid concentration is too low, the medium will be lost, resulting in quenching cracks.
  • the quenching liquid will be lost, and the concentration of the medium needs to be monitored at any time, which brings certain difficulties to stable production. Therefore, in this technology
  • quenching is performed by oil quenching. The performance of the oil is very stable, there is no need to adjust the concentration of the medium, nor does it cause quench cracks due to too high or too low a concentration.
  • the tempering temperature is 600 to 650 °C.
  • the method for manufacturing the super 13Cr tool joint according to the present invention can produce a super good quality super
  • the 13Cr tool joint is adapted to produce a super 13Cr drill pipe in combination with the Super 13Cr pipe body.
  • the super 13Cr tool joint prepared by the technical scheme has no galvanic corrosion at the joint of the pipe body, and does not cause serious corrosion at the joint portion.
  • the super 13Cr tool joint made by the technical solution can achieve a mechanical performance of more than 1 lOks i. Detailed description of the invention
  • the billet is obtained, and the chemical element mass ratio is controlled as follows: C 0.01 ⁇ 0.05%, Si ⁇ 0.5%, ⁇ 0 ⁇ 2 ⁇ 1 ⁇ 0%, Cr 12 ⁇ 14%, Mo 1 ⁇ 3%, Ni 4 ⁇ 6%, the balance is Fe and unavoidable impurities; (2) Forging the billet at 1150-1200 °C;
  • Tempering controlling the tempering temperature to 600-650 °C.
  • Table 1 lists the distribution ratios of the tool joints in the examples 1-5 of the present case.
  • Example 3 0.02 0.34 0.40 12.3 1.1 4.9
  • Example 4 0.03 0.42 0.52 12.5 1.9 5.5
  • Example 5 0.04 0.25 0.65 13.7 2.5 4.5
  • Table 2 lists the process parameters of the various steps in the examples 1-5 and the mechanical properties of the tool joint. .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

公开了一种超级13Cr工具接头的制造方法,其包括下列步骤:制得坯料;锻造坯料;将锻造后的坯料加热到600-700°C进行去应力退火;淬火;回火。采用该方法可以制得力学性能达到110ksi的超级13Cr工具接头。

Description

超级 13Cr工具接头的制造方法 发明领域
本发明涉及一种接头的制造方法, 尤其涉及一种高合金接头的制造方法。 背景技术
用于石油天然气钻探的钻杆是按 API SPEC 5DP标准生产制造的。 其结构 是在钻杆管体两端各摩擦对焊一个外螺紋钻杆接头和一个内螺紋钻杆接头。 符 合 API SPEC 5 DP标准的钻杆为低合金钢材质。
随着石油工业的发展, 钻杆的服役条件日趋恶劣, API SPEC 5DP标准的 低合金钢材质钻杆已不能满足日益苛刻的钻井作业要求, 迫切需要高合金钻 杆。 为此, 市场上出现了铝合金钻杆与钛合金钻杆。 铝合金钻杆是按照 ISO 15546 标准生产的。 铝合金钻杆是由铝合金钻杆管体与一个低合金钢制外螺紋 接头和一个低合金钢制内螺紋接头通过细扣螺紋连接而成的。 钛合金钻杆的结 构与铝合金钻杆类似。
采用铝合金钻杆与钛合金钻杆的主要目的有两个: 一是利用铝合金钻杆与 钛合金钻杆比重低的特点钻探超深井, 二是利用铝合金钻杆与钛合金钻杆可以 抵抗硫化物应力腐蚀的特性钻探含硫井。
对于某些含 CO2的气田, 其地层为致密砂岩, 如果采用常规的钻杆钻井、 油管完井的作业方式, 产量仅有几万立方米 /天, 此外, 由于对含有较高 CO2 的气田必须采用超级 13Cr 系列高合金油管产品, 因此会导致开采产量过低而 成本过高, 无工业开采价值。
如果能够采用氮气钻井工艺, 就可能解决上述问题而获得日产百万立方米 天然气的高产量。 但采用氮气钻井工艺时, 不能将钻杆提出以换成油管完井, 否则将污染产层, 使产量重回几万立方米 /天。 这就需要一种抗 CO2腐蚀的超 级 13Cr高合金钻杆接头。 发明概述
本发明的目的是提供一种超级 13Cr工具接头的制造方法, 采用该方法可以 生产出适配于超级 13Cr钻杆的超级 13Cr工具接头, 进而将该钻杆用于开采含 C02较高的气田。
根据上述目的, 本发明提出了一种超级 13Cr工具接头的制造方法, 其包括 下列步骤:
( 1 ) 制得坯料;
( 2 )锻造坯料;
( 3 ) 将锻造后的坯料加热到 600-70CTC进行去应力退火;
(4) 淬火;
( 5 ) 回火。
现有的高合金钻杆, 包括铝合金钻杆与钛合金钻杆, 均是通过细扣螺紋将 钢制接头与铝合金或钛合金管体连接。 由于钢制接头与铝合金或钛合金管体存 在电偶腐蚀, 使得钢制接头很容易产生严重腐蚀。 采用本技术方案制得的超级
13Cr工具接头, 用于超级 13Cr钻杆, 当其与超级 13Cr管体连接时, 不会发生电 偶腐蚀, 因此不会在接头部位产生严重腐蚀。
在现有的工具接头制造工艺中, 工具接头锻造后采用正火处理, 正火处理 的温度一般为 80(T950°C。 这种工艺会使得超级 13Cr工具接头形成马氏体组织, 使后续步骤难以进行。 而本技术方案通过采用 600-700 °C的去应力退火处理, 使得处理后的超级 13Cr工具接头的组织为回火马氏体组织, 从而便于后续加 工。
在上述超级 13Cr工具接头的制造方法中, 控制超级 13Cr工具接头的化学元 素质量百分配比为: C 0.0Γ0.05%, Si < 0.5%, Mn 0.2〜1.0%, Cr 12〜14%, Mo Γ3%, Ni 4〜6%, 余量为 Fe和不可避免的杂质。
进一步地, 在步骤 (2 ) 中, 锻造温度为 1150-1200°C。
进一步地, 在步骤 (4) 中, 淬火温度为 950-1000°C。
进一步地, 在步骤 (4) 中, 淬火为油淬。
在现有的工具接头制造工艺中, 淬火处理主要采用具有一定介质浓度的水 基淬火液进行整体淬火。 采用水基淬火液淬火需调整介质的浓度。 发明人通过 大量试验和分析发现, 若淬火液浓度过高, 则淬火效果不好; 若淬火液浓度过 低, 则会失去介质作用, 导致出现淬火裂紋。 同时在连续生产过程中, 淬火液 会有损耗, 需随时监测介质浓度, 给稳定生产带来一定困难。 因此, 在本技术 方案中, 采用油淬的方式进行淬火。 油的性能非常稳定, 无须调整介质浓度, 也不会产生因浓度过高或过低产生淬火裂紋。
进一步地, 在步骤 (5 ) 中, 回火温度为 600-650 °C。
在上述超级 13Cr工具接头的制造方法中, 在步骤(3 ) 和 (4 )之间还具有 将坯料进行粗加工的步骤。
本发明所述的超级 13Cr工具接头的制造方法可以制得质量优秀的超级
13Cr工具接头, 从而与超级 13Cr管体适配生产超级 13Cr钻杆。 采用本技术方案 制得的超级 13Cr工具接头与管体连接处不存在电偶腐蚀, 不会在接头部位产生 严重腐蚀。 采用本技术方案制得的超级 13Cr工具接头可以达到 1 lOks i以上的力 学性能。 发明的详细说明
下面将结合具体的实施例来对本发明所述的超级 13Cr工具接头的制造方 法进行进一步地详细说明。
实施例 1-5
按照下列步骤制造超级 13Cr工具接头:
( 1 )制得坯料,控制其化学元素质量百分配比为: C 0.01〜0.05%, Si<0.5%, Μη 0·2〜1·0%, Cr 12〜14%, Mo 1〜3%, Ni 4〜6%, 余量为 Fe和不可避免的杂质; ( 2 ) 将坯料在 1150- 1200 °C进行锻造;
( 3 ) 将锻造后的坯料加热到 600-700°C进行去应力退火;
( 4 )对坯料进行粗力口工;
( 5 ) 将经过粗加工后的坯料加热到 950-1000°C后, 在油槽中淬火冷却;
( 6 ) 回火, 控制回火温度为 600-650°C。
表 1列出了本案实施例 1-5中工具接头的成分配比。
表 1. ( wt%, 余量为 Fe和其他不可避免的杂质)
表 1·
Figure imgf000004_0001
实施例 3 0.02 0.34 0.40 12.3 1.1 4.9 实施例 4 0.03 0.42 0.52 12.5 1.9 5.5 实施例 5 0.04 0.25 0.65 13.7 2.5 4.5 表 2列出了本案实施例 1-5中各步骤的工艺参数和工具接头的力学性能。
表 2·
Figure imgf000005_0001
从表 2可以看出, 采用本技术方案所述的方法制得的超级 13Cr工具接头 可以达到 1 1 Oksi的力学性能。 要注意的是, 以上列举的仅为本发明的具体实施例, 显然本发明不限于以 上实施例, 随之有着许多的类似变化。 本领域的技术人员如果从本发明公开的 内容直接导出或联想到的所有变形, 均应属于本发明的保护范围。

Claims

权 利 要 求 书
1.一种超级 13Cr工具接头的制造方法, 其包括下列步骤:
( 1 ) 制得坯料;
( 2 )锻造坯料;
(3 ) 将锻造后的坯料加热到 600-700°C进行去应力退火;
(4) 淬火;
(5) 回火。
2.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 控 制超级 13Cr工具接头的化学元素质量百分配比为: C0.01〜0.05%, Si < 0.5%, Μη0·2〜1·0%, Cr 12〜14%, Mo 1〜3%, Ni 4〜6%, 余量为 Fe和不可避免的杂质。
3.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 在 步骤 (2) 中, 锻造温度为 1150-1200°C。
4.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 在 步骤 (4) 中, 淬火温度为 950-1000 °C。
5.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 在 步骤 (4) 中, 淬火为油淬。
6.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 在 步骤 (5) 中, 回火温度为 600-650 °C。
7.如权利要求 1 所述的超级 13Cr工具接头的制造方法, 其特征在于, 在 步骤 ( 3 ) 和 ( 4 ) 之间还具有将坯料进行粗加工的步骤。
PCT/CN2013/084876 2013-04-19 2013-10-09 超级13Cr工具接头的制造方法 WO2014169593A1 (zh)

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