Wear-resistant coating and preparation method thereof, cutter ring of shield hobbing cutter, shield hobbing cutter and shield tunneling machine
A kind of wear-resistant coating and coating technology, which is applied in the direction of coating, metal material coating technology, mining equipment, etc., can solve the problems of difficult to effectively improve the wear resistance of the knife ring, local stress concentration, large thermal stress, etc., to achieve Inhibit the initiation and propagation of cracks, improve the degree of uniform distribution, and the effect of uniform distribution of hard phases
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0050] The preparation method of wear-resistant coating 1 provided by the present invention comprises the following steps:
[0051] (a) Coating the solder mixture of diamond micropowder, alcohol solvent, sodium fluoride and nickel-based solder on the surface of the substrate, drying the solder mixture to lose moisture, and using a laser to Scanning the dried solder mixture, after the solder is melted and spread, realizes metallurgical bonding with the substrate to obtain the solder coating 2;
[0052] (b) optionally repeating step (a), such as figure 1 Shown, until the desired thickness of wear-resistant coating 1 is obtained.
[0053] The preparation method of a wear-resistant coating 1 provided by the present invention adopts the laser spot as the heat source, has the advantages of fast heating rate, small heat-affected zone of base material and diamond, etc., and will not cause excessive thermal damage, and the coating No heat treatment is required after preparation, and ...
Embodiment 1
[0066] The preparation method of the wear-resistant coating 1 provided in this embodiment specifically includes the following steps:
[0067] A. Calculated in parts by mass, weigh 3 parts of diamond micropowder (200-325 mesh), 3 parts of terpineol, 1 part of sodium fluoride and 93 parts of BNi-2 solder powder (200-300 mesh), mix well , stir, and prepare the paste solder mixture for subsequent use;
[0068] B. Coat the paste solder mixture evenly on the working surface of shield hob cutter ring 3, control the thickness to 0.7mm, cool and dry, put it in a drying oven, and dry it at 100°C for 1.5h, dry the coating Moisture inside the layer;
[0069] C. Fix the dried shield hob cutter ring 3 on the high-temperature-resistant bracket, supplemented by argon as the protective gas, and use CO with a diameter of 15mm 2 The laser spot is the heat source, and the scanning speed is 380mm / min to quickly scan the dried solder mixture, the coating solder melts and spreads, and realizes met...
Embodiment 2
[0072] The preparation method of the wear-resistant coating 1 provided in this embodiment specifically includes the following steps:
[0073] A. Calculated in parts by mass, weigh 4 parts of diamond micropowder (200-325 mesh), 4 parts of terpineol, 2 parts of sodium fluoride and 90 parts of BNi-2 solder powder (200-300 mesh), and mix thoroughly , stir, and prepare the paste solder mixture for subsequent use;
[0074] B. Coat the paste solder mixture evenly on the working surface of the shield hob cutter ring 3, control the thickness to 0.6mm, cool and dry, put it in a drying oven, and dry it at 90°C for 1.5h, dry the coating Moisture inside the layer;
[0075] C. Fix the dried shield hob cutter ring 3 on the high-temperature-resistant support, supplemented by argon as the protective gas, and use CO with a diameter of 13mm 2 The laser spot is the heat source, and the scanning speed is 230mm / min to quickly scan the dried solder mixture, the coating solder melts and spreads, an...
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
thickness | 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