Lead-free solder paste for needle cylinder and preparation method
A lead-free solder paste and syringe technology, which is used in welding equipment, welding media, manufacturing tools, etc., can solve the problem of not ensuring stable connector spot-coating welding, and the needle-free lead-free solder paste is not delicate and has poor adhesion. Easy to drop and other problems, to achieve the effect of excellent thixotropic performance, good continuous performance, and not easy to oxidize and discolor
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example 1
[0027] Add 25g of diethylene glycol monobutyl ether, 25g of tetraethylene glycol dimethyl ether and 9g of polyoxyethylene glyceryl ether to the temperature-controlled emulsifier for heating, and stir at 120℃ for 10 minutes at a speed of 200r / min. 15g of polymerized rosin 604#, 7g of polymerized rosin 105# and 7.4g of super hydrogenated rosin AX-E were added in sequence and stirred at 800r / min for another 10 minutes to prepare a mixed solution; then the mixed solution was cooled to a temperature of 100°C, successively Add 1.2g of 2,3-dibromo 1,4-butenediol, 3.0g of sebacic acid and 2.05g of succinic acid, and then stir at 1000r / min for 10 minutes to prepare a secondary mixed solution that is cooled to 75℃ Temperature, add 2.5g modified hydrogenated castor oil and 2.5g polyamide wax in turn, then stir at 1000r / min for 5 minutes to prepare three mixed solutions. Cool down to 50℃, add 0.05g fluorocarbon surfactant in turn FC-4430 and 0.3g triethanolamine were stir...
Example Embodiment
[0028] Example 2
[0029] Add 30g of diethylene glycol monobutyl ether, 15g of tetraethylene glycol dimethyl ether and 10g of polyoxyethylene glyceryl ether to the temperature-controlled emulsifier for heating. Stir at a temperature of 125°C at a speed of 200r / min for 5 minutes, and then add 18.5 g polymerized rosin 604#, 5g polymerized rosin 105#, and 10g of super hydrogenated rosin AX-E were added in sequence and stirred at 800r / min for 5 minutes to prepare a mixed solution; then the mixed solution was cooled to a temperature of 105℃ and added in sequence 1.5g 2,3-dibromo 1,4-butenediol, 2.0g sebacic acid and 3.0g succinic acid, and then stirred at a speed of 1000r / min for 10 minutes, the temperature of the secondary mixed solution was cooled to 70℃ , Add 1.0g modified hydrogenated castor oil, 3.0g polyamide wax in turn, and then stir at 1000r / min for 10 minutes to prepare a three-time mixed solution. Cool down to 55℃, add 0.2g fluorocarbon surfactant FC in sequence -4430 and ...
Example Embodiment
[0030] Example 3
[0031] Add 27.4g of diethylene glycol monobutyl ether, 20g of tetraethylene glycol dimethyl ether and 7g of polyoxyethylene glyceryl ether to the temperature-controlled emulsifier for heating, and stir for 10 minutes at a temperature of 120°C at a speed of 200r / min. Add 19g of polymerized rosin 604#, 8g of polymerized rosin 105# and 8g of special-grade hydrogenated rosin AX-E in sequence and stir at 800r / min for another 10 minutes to prepare a mixed solution; then cool the mixed solution to a temperature of 100°C in sequence Add 1.0g of 2,3-dibromo 1,4-butenediol, 3.0g of sebacic acid and 2.0g of succinic acid, and then stir at 1000r / min for 10 minutes to prepare a secondary mixed solution and cool down to 75℃ Temperature, add 2.0g modified hydrogenated castor oil and 2.0g polyamide wax successively, and then stir at 1000r / min for 5 minutes to prepare three mixed solutions. Cool down to 50℃, add 0.1g fluorocarbon surfactant in turn FC-4430 and 0.5g triethanola...
PUM
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap