Thin-walled tube manufacturing process for space nuclear power device
A manufacturing process and thin-walled tube technology, which is applied in the field of thin-walled tube manufacturing process for space nuclear power devices, can solve the problems of difficulty in overall processing, difficulty in meeting the requirements of straightness, and inability to meet the requirements of precision, and achieve large-scale production Good production, easy processing, good mechanical properties and processing performance
Inactive Publication Date: 2020-09-18
江苏良工精密合金钢有限公司
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Problems solved by technology
[0005] The invention provides a thin-walled tube manufacturing process for space nuclear power devices, which solves the problems of difficulty in clamping and easy deformation in the manufacturing process, which leads to difficulty in meeting straightness requirements, failure to meet requirements in precision, poor cutting performance, and difficulty in overall processing. Technical Difficulties in Realizing Large-Scale Production
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[0047] The invention provides a thin-walled tube manufacturing process for space nuclear power devices, including a tube blank manufacturing process A, a tube inner hole processing process B and a tube outer circle processing process C, and the tube blank manufacturing process A includes the following step:
[0048] A1) blanking: blanking the steel ingot;
[0049] A2) forging: forging the steel ingot into a round billet;
[0050] A3) pickling: carry out pickling to the round steel billet surface, remove scale;
[0051] A4) rolling: the round billet after pickling is rolled;
[0052] A5) heat treatment: solution heat treatment is carried out to the round steel billet after rolling;
[0053] A6) sampling: sampling the round steel billet after heat treatment;
[0054] A7) physical properties: detect the physical properties of the sample;
[0055] A8) Ultrasonic: carry out ultrasonic flaw detection on the round steel billet;
[0056] A9) sampling: sampling the round steel bi...
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The invention relates to a thin-walled tube manufacturing process for a space nuclear power device. The thin-walled tube manufacturing process comprises a tube blank manufacturing technological process A, a tube inner hole processing technological process B and a tube outer circle processing process C. The tube blank manufacturing technological process A comprises the following steps of turning, core shaft grinding, core shaft detecting, hot installation, turning, grinding, outer circle detecting, vacuum stabilizing and linear cutting. According to the thin-walled tube manufacturing process for the space nuclear power device, the mechanical properties of thin-walled tubes for the space nuclear power device are good, the part accuracy meets the requirement, and the scale production is realized.
Description
technical field [0001] The invention relates to the field of manufacturing stainless steel thin-walled tubes, in particular to a manufacturing process for thin-walled tubes for space nuclear power devices. Background technique [0002] Stainless steel pipe has the characteristics of good mechanical properties, strong corrosion resistance and good production process performance, and has been widely used in the fields of electric power, chemical industry and nuclear industry. In the most core and most critical components of space nuclear power plants - the core body generally uses thin-walled tubes in stainless steel tubes. The 58 power generation elements distributed inside the core are composed of concentric casings, and the inner and outer casings are all 0.3mm It is made of thick and thin-walled tubes, and the straightness of the concentric casing is generally required to be 0.025mm, and the concentric deviation requirements of the inner and outer casings are also relative...
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王厚祥
Owner 江苏良工精密合金钢有限公司