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
Lens driving device
Method and apparatus for providing charging status information to subscriber of communication service
Antimicrobial flush solutions
Process for preparation of Efavirenz
Image correction method
Emergency power-off button with proximity alarm
Sublingual coated tablet of fentanyl
  Randomly Featured Patents
Remedies for sex hormone dependent disease
Position sensing apparatus for measuring the angular position of a rotor relative to a stator having a plurality of teeth with excitation windings and plural phase reception windings
Variable speed A.C. motor
System using a polar coordinate stage and continuous image rotation to compensate for stage rotation
Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations
Optical ranging sensor and electronic equipment
Graphical e-mail content analyser and prioritizer including hierarchical email classification system in an email
Determining a perfect replaceable unit mounted in image forming apparatus and image forming system
Collar for an electric candle
Process for producing a supported catalyst for the polymerization of .alpha .