1 Jun ASTM D Standard Guide for Preparation of Aluminum Surfaces for. Structural Adhesives Bonding (Phosphoric Acid Anodizing). ASTM D. ASTM D Standard Guide for Preparation of Aluminum Surfaces for Structural Adhesives Bonding (Phosphoric Acid Anodizing). Buy ASTM D() Standard Guide for Preparation of Aluminum Surfaces for Structural Adhesives Bonding (Phosphoric Acid Anodizing) from SAI .
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I rather doubt astm-d3933 the gain is waste treatment is worth the reduction in bondability. What are the surface phenomenon characteristics of Asfm-d3933 that make it astm-d3933 desirable for adhesion?
Please send astm-d3933 information, I’ll forward drawings for an RFQ. Usually the customer requires a certification before parts can be processed. Are you sure your astm-d3933 isn’t talking about adhesion of the primer to the PAA – this might have some merit – however, with PAA being only a fraction astm-d3933 1 micrometer in thickness, I’m not sure it matters.
Can you help me with a process for Phosphoric astm-d3933 anodizing. I am currently setting up a phosphoric acid anodize PAA line. I am astm-d3933 to set up a small bench top operation.
It’s not astm-d3933 to diagnose a asrm-d3933 problem or the hazards of an operation via these pages. We have been told that the sulfuric acid process astm-d3933 more temperature sensitive, and we might have to install a chiller and a heat exchanger to control the astm-d3933.
Phosphoric Acid Anodizing (PAA Process, primarily for adhesive bonding of aluminum)
Phosphoric acid anodizing is done with stainless steel cathodes. We astm-d3933 researching either chromate surface conversion CAA or Astm-d39333 for better bonding performance, but are getting conflicting information from various anodizing astm-d3933.
I work for a company that specializes in composite structures. We are trying to get BAC compliant since it is going to be used as the “straw man” for the new Astm-d3933 spec. PAA is used to prepare the aluminum surface for acceptance astm-d3933 the primer astm-d3933 bonding. Astm-d3933 anodizing is well known as being superior to astm-d3933 acid for bonding purposes.
I have searched the web and cannot find much technical info. Nonetheless, if the PAA is being called out for a pretreatment for a subsequent pressure bonding operation than the astm-d3933 is no, sulphuric acid anodizing is not the coating of choice for a variety astm-d3933 reasons.
Phosphoric acid anodizing per BAC5555 and ASTM D3933-98
I am working on a project to find alternatives to Phosphoric Acid Anodizing to actually try to eliminate the phosphoric acid. I was hoping someone could astm-d3933 a filtration technique for the astm-d3933 tanks astm-d3933 keep chloride and fluoride astn-d3933 down to acceptable levels 35 ppm for chloride, 75 ppm for fluoride.
There is very little information on this specialized process. I wouldn’t be too worried about it until the concentration climbs above what is allowed. Also, PAA anodizers say you can laminate carbon skins directly to the converted surface without galvanic problems, but other astm-d3933 still require a glass barrier.
Improper surface preparation can produce seemingly acceptable bonds that astm-d3933 degrade rapidly with time. Another would be Handbook of Adhesives astm-d3933 by Skeist. Astm-d3933 it possible for an aluminum surface to have too low of a surface roughness for phosphoric acid anodizing?
The next best process to PAA would be any method of etching the aluminum surface to roughen the profile. Basically there are some particular surface phenomenon characteristics astm-d3933 PAA which are not acquired elsewhere other than possibly FPL etches, and that could be arguable. Historical Version s astm-d3933 view previous astm-d3933 of standard. Ray Handwerker – Bensalem, Pennsylvania.
Currently, Nadcap does not have astm-d3933 specific PAA spec, but one will be handed down soon after their quarterly meeting this astm-d3933. We would like to know if it is it normal for the solution to turn a yellow color after processing. If you are interested, one I might suggest is Surface Astm-d3933. My basic question is: Need astm-d3933 source for PAA etch to D [link by ed.
You may astm-f3933 something on the web under PAA astm-d3933 BAC, or you can do a literature search which will axtm-d3933 you some data, or astm-d3933 contacting Boeing’s commercial development office about licensing Astm-d3933 That astm-d3933 a management decision.
The astm-d39333 office, downtown, used to have one of the finest libraries going. Hi, Krag and Jeff. I don’t think this is possible, but Astm-d3933 thought I should at least try to post the question. You may be looking for Boeing’s BAC process. I don’t know if the patents have run out on Astm-d3933 or not — you’d have to do a patent search.
I need info like tank astm-d3933, cathode material, voltage and astm-d3933 requirements, bath temp, etc. The wstm-d3933 cathodes will be dissolved continually in phosphoric acid, shortening your bath life.