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
Resist underlayer film forming composition for lithography, containing aromatic fused ring-containing resin
(4945
Apoptosis inductor extracted from potato, potato foodstuff containing the inductor, and processed product thereof
Display panel and gate driving circuit and driving method for gate driving circuit
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Display screen with graphical user interface
Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method
  Randomly Featured Patents
Circuit for preventing automatic white balance error operation
Bracelet
Method of extending the life of a cathode ray tube
Low profile primary classifier
Stabilized herbicidal composition
Memory card cooling device
Sander
Two-transistor pixel with buried reset channel and method of formation
Decolorizing dyed fabric or garments
Eyeglass holder