Preparation method of high-strength excavator bolts
An excavator, high-strength technology, applied in the field of preparation of high-strength excavator bolts, can solve the problems of easy rust and corrosion, breakage or cracks, and the formation of accident sources, and achieve high precision bolts, good plasticity, and improved tensile strength The effect of intensity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0021] The present invention will be further described in conjunction with the following examples:
[0022] A method for preparing a bolt for a high-strength excavator. The processing steps include:
[0023] a. Casting rod blank, the weight percentage of chemical composition in the rod blank is: 0.234%C, 0.64%Si, 0.30%Mn, 0.024%P, 0.026%S, 1.4%Cr, 0.001%B, 0.022%Cu, and The amount is iron and unavoidable impurities; the temperature of the casting blank is reduced to 250°C, then heated to 670-780°C, kept for 3-5 hours, cooled to 300°C, kept for 3 hours, and then heated to 650-760°C , keep warm for 10 hours, cool to 400°C at 45°C / hour, then cool to room temperature at 25°C / hour;
[0024] b. The rod material after casting is pickled; according to the wire diameter requirements of the bolt, it is drawn to make the rod material shrink to the wire diameter required by the bolt; the rod material after shrinking the wire diameter Cut to the length required by the bolt, put the cut r...
PUM
Property | Measurement | Unit |
---|---|---|
tensile strength | aaaaa | aaaaa |
yield strength | aaaaa | aaaaa |
elongation | 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