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RE: [was] UBC 97 Diaphargm Nailing [is now galvanizing methods][Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: RE: [was] UBC 97 Diaphargm Nailing [is now galvanizing methods]
- From: Charlie Carter <carter(--nospam--at)aiscmail.com>
- Date: Wed, 29 Dec 1999 11:54:49 -0600
Title: RE: [was] UBC 97 Diaphargm Nailing [is now galvanizing methods]
Yes. Generally, mechanical galvanizing (what you called tumbling) is used for small parts (bolts, nuts, etc.) that can be put in a hopper and tumbled with water, glass beads and powdered zinc. It's a bit more complicated than this brief description, but the impact of the glass beads with the product in the presence of the water and zinc powder fuses the zinc to the product. ASTM A153 is the applicable ASTM spec for mechanical galvanizing. Larger parts (like beams, columns, etc.) are generally hot-dip galvanized in accordance with ASTM B695.
From: Bart Needham [mailto:bartn(--nospam--at)ckcps.com]
Sent: Wednesday, December 29, 1999 10:24 AM
Subject: Re: UBC 97 Diaphargm Nailing
James Allen wrote:
> 4. See Table 23-ll-I-1, footnote 5, what are tumbled nailed?
Tumbling is a method of galvinizing the nails and other wire type products in order to achieve the zinc coating requirement of A153. I was told a long time ago, but have never verified it, that tumbling (diffferent from dipping) is the method used to galvinize nails in order to avoid dipping each piece
individually. I think galvinizing processes have changed a little since I was told this.
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