SJ 3203-1989 Classification of solder flux SJ3203-1989 standard download decompression password: www.bzxz.net

Ministry of Machinery and Electronics Industry of the People's Republic of China Standard SJ3203-89
Classification and terminology of soft soldering fluxes
Classificationforsoft solderingfluxesDefinition of terms for soft soldering fluxesPublished on February 10, 1989
Implemented on March 1, 1989
Published by Ministry of Machinery and Electronics Industry of the People's Republic of Chinawww.bzxz.net
Ministry of Machinery and Electronics Industry of the People's Republic of China Standard Classification of soft soldering fluxes
Classification for soft soldering fluxesSJ8208-88
This standard is formulated with reference to the relevant contents of the draft standard of the Secretariat document "Soft soldering flux" of the Technical Committee for Soldering Standardization of the International Organization for Standardization ISO/TC44/SC12. 1 Subject content and applicable scope
This standard specifies the classification of fluxes for soldering. Reasonable classification is of great significance to the correct use of fluxes and the improvement of welding technology. The flux specified in this standard is classified according to its basic components. Each type is further distinguished by its active components and chemical properties, representing the range of chemical activity of the flux. It is suitable for soldering designers and technicians in various industries to select flux materials according to the scope of application.
2 Classification
The classification of soldering flux is shown in the table below. Each part of the table is marked with a number to describe and identify the type of flux. For example: Flux 1,1.3A is a non-halogen activated liquid rosin flux, while 3.2.1C is a phosphoric acid activated paste flux.
Resin system
Organic system
Inorganic system
Classification of table flux
Basic ingredients
Non-rosin resin base
Water-soluble
Non-water-soluble
Active ingredients
No activator
Halogen activation
Non-halogen activation
No activator
2. Halogen activation
3. Non-halogen activation
1. No activator
2 Halogen activation
Non-halogen activation
1. No activator
Halogen activation
3. Non-halogen activation
Ammonium chloride
Other than ammonium nitride
2. Other acids
Ministry of Machinery and Electronics Industry of the People's Republic of China 1989-02-10 Standard form
1989-03-01 Implementation
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.