Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Brazing filler metal superior in corrosion resistance and heat resistance, and EGR cooler brazed with said brazing filler metal










Image Number 2 for United States Patent #6203754.

The present invention provides a brazing filler metal whose brazing temperature is 1060-1120.degree. C. which is close to that of BNi-2 specified in JIS Z3265. The present invention also provides a brazing filler metal which has a melting point of 890-980.degree. C. (which is close to that of BNi-7) and is capable of brazing at a temperature lower than 1000.degree. C. The brazing filler metal of the present invention improves the base metal in corrosion resistance without deterioration. In addition, it has good resistance to oxidation and good resistance to corrosion by sulfuric acid. It has high strength, good heat resistance, and good wetting characteristics. It is used to produce durable EGR coolers by brazing. The first brazing filler metal is composed of Cr (20-30 wt %), P (3-10 wt %), Si (2-7 wt %), and Ni (remainder). It may be incorporated with another brazing filler metal composed of Cr (10-15 wt %), P (7-12 wt %), and Ni (remainder) in an amount of 2-15 wt %. The second brazing filler metal is composed of Cr (18.5-29.7 wt %), P (3.1-10.3 wt %), Si (1.7-6.9 wt %), and Ni (remainder). The present invention also provides an EGR cooler brazed with the brazing filler metal mentioned above.








 
 
  Recently Added Patents
Use of emerging non-volatile memory elements with flash memory
Method for manufacturing non-volatile memory device, non-volatile memory element, and non-volatile memory device
Medical capsule housing formed by thermal welding
Signal generator
Method of isolating human neuroepithelial precursor cells from human fetal tissue
Systems and methods for simultaneously configuring multiple independent backups
Sample analyzing device
  Randomly Featured Patents
Block impact splitter
Optical contact module
Inverted tufting machine needle drive and stroke adjustment
Addition polymers derived from norbornene-functional monomers and process therefor
Telecommunications system data alignment equipment and method
Hyaluronan synthase genes and expression thereof in Bacillus hosts
Method of controlling exhaust gas purification system, and exhaust gas purification system
Soft electrical heater with continuous temperature sensing
Electronic camera
Welding auto-darkening filter assembly