Petroleum drilling rod joint higher hardness number treating process
A technology for oil drill pipe joints and drill pipe joints, which is used in heat treatment furnaces, heat treatment equipment, heat treatment process control, etc. The effect of tight spacing requirements, preventing thread tooth deformation, and improving product qualification rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0008] Example 1: Put the drill pipe joint without phosphating layer on the surface, the material is 4137H (37CrMnMo), the hardness value is greater than HB331, put it into the electroplating tank of copper sulfate solution, and plate a layer of pure copper on the thread of the joint and the sealing surface according to the conventional process ; Then hoist the joint into the tempering furnace for tempering, control the tempering temperature to 650°C, keep it warm for 120min, and then hoist it out of the water to cool to room temperature.
[0009] Example 2: Put the drill pipe joint with a phosphating layer on the surface, the material is 4137H (37CrMnMo), and the hardness value is greater than HB331. One method of copper plating and tempering.
[0010] After the above treatment, the hardness value of the drill pipe joint is in the range of HB293-331, the comprehensive mechanical performance is high, and there will be no joint thread tooth deformation and surface decarburizati...
PUM
Property | Measurement | Unit |
---|---|---|
hardness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com