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Development of a new high-temperature solder system.

Public Domain


Details

  • Personal Author:
  • Description:
    A new high-temperature soldering system has been developed for use on copper, copper alloys, and low-carbon steel. The method is applicable to automobile radiators and home appliances. The system uses a unique sacrificial metal coating method to promote spontaneous wetting and spreading of zinc and zinc alloy solders on metallic substrates. The 10-5- to 10-6-cm thick, electroplated or sputtered, sacrificial nickel coating is absorbed by the molten filler alloy during soldering and produces a direct solder-substrate metallic bond. Preliminary measurements on butt joints with copper members give tensile strengths over 32,000 psi at room temperature using 95 zn-5al alloy as solder. Spontaneous wetting, spreading, and capillary penetration are extremely rapid and produce joints as easily as 50-50 tin-lead solders. Recrystallization or annealing of the wrought copper joint members is negligible at the soldering temperatures of 450 deg to 490 deg c and lower. A list of typical fluxes and solder alloys is included. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • ISSN:
    0043-2296
  • Document Type:
    Text
  • Genre:
    Journal Article
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    RORC - Rolla Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Volume:
    51
  • Issue:
    7
  • NIOSHTIC Number:
    nn:10010437
  • Citation:
    Welding J 1972 Jul; 51(7):361-S-368-S
  • Federal Fiscal Year:
    1972
  • Peer Reviewed:
    False
  • Source Full Name:
    Welding Journal
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
  • Download URL:
  • File Type:
    Filetype[PDF - 168.02 KB ]
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