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
Semiconductor device, display device, and electronic device
Status polling
Digital downconversion and fast channel selection of narrowband signals using a wide band RF tuner
Highly basic ionomers and membranes and anion/hydroxide exchange fuel cells comprising the ionomers and membranes
Triple-lip seals for bearings and bearings incorporating the same
Terminated call control for roaming cellular telephony
Systems and methods for determining the state of charge of a battery utilizing confidence values
  Randomly Featured Patents
Bird feeder
Convection section ash monitoring
Boron carbide as an effective friedel-crafts type catalyst
Chair
Routing multiple media signals through a patchbay
Fuel cell diagnostic apparatus and diagnostic method
Method for calibrating and operating a measuring cell arrangement
Press with hydraulic load transferring mechanism
System for biological purification of water containing organic materials and derivative products
Apparatus and method for recovery of cotton seed from lint