The ASTM B specification covers the requirements for a coating of zinc mechanically deposited on iron and steel basis metals. The coating. governing specifications for hot-dip galvanizing; ASTM. A, A, and A as .. requirements specified in ASTM B range from. to mils (5 to ASTM B Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel.
|Published (Last):||10 January 2010|
|PDF File Size:||3.13 Mb|
|ePub File Size:||6.78 Mb|
|Price:||Free* [*Free Regsitration Required]|
ASTM does not give any warranty express or implied b6695 make any representation that the contents of this abstract are accurate, complete or up to date.
You get the benefit of metallurgical bond and the iron-zinc intermetallics formed by dipping into molten zinc at high temperature. We, as qualified professionals, can plate low carbon steel, cold rolled steel, high carbon heat-treated steel, various tool steels, high strength alloys, free-mechanical steels including leaded steels. Historical Version s – view previous versions of standard.
Deburring is a bonus: Along with those post-plating services, we offer chromate finishes aastm clear trivalent, yellow, black, and olive drab chromates.
CIP offers two post-plating services: Register now while it’s still free! In hot-dip galvanizing, threads must be cut aastm chased after galvanizing, robbing them of protection and requiring extra expense. Mechanical Galvanizing does not fill valleys of threaded fasteners and their parts mate quickly and easily.
Specializing in Mechanical Zinc Plating and Galvanizing Uniformity of thickness depends on part aastm and shape with typically thinner deposits on edges and thicker deposits in recesses.
Join your peers on the Internet’s largest technical engineering professional community. The ability to plate flat parts: They or other sharp points have uniform thickness you want in plating. The ability to plate zinc, cadmium, tin or lead any mixture of these materials. Hydrogen embrittlement is a phenomenon which causes materials to lose their strength and become brittle.
Some installations can increase stamping runs from the same die-sets and eliminate barrel or vibratory finishing steps in deburring.
Any metal that can wstm made into a fine powder can be mechanically plated, however CIP specializes astj zinc, tin, and aluminum. Click here for a quote or call us at Because mechanical plating is so uniform, you can save money by coating at asttm average thickness. Mechanical Galvanizing is a room temperature process that does not detemper heat-treated parts. Appearance is uniform comparatively smooth with a satiny texture and has none of the discolored and mottled effect o hot-dip galvanizing.
The base metal is less chemically active s o that the coating corrodes first. Mechanical plating is he method preferred by many engineers for hardened fasteners and stressed components.
Link to B69 This link will always route to the current Active version of the standard. This makes mechanical plating an ideal process for plating flat stampings and washers. Red Flag This Post Please let us know aetm why this post is inappropriate. If an application requires torqueing, exposure to vibration or any handling that could rupture a finish, mechanical plating provides durable metal coating with excellent adhesion.
Provide heavy-duty corrosion resistance: Are you an Engineering professional?
CIP is certified to work with coating for zinc deposited mechanically onto iron and steel basis metals. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Even if the mechanical plating finish is scratched, there is still galvanic protection for the base metal. Students Click Here Join Aztm Download Now Defense manufacturing is all about project manufacturing and project accounting. Sacrificial metal coating is applied with coverage to all surfaces of the part to the corners recesses, threaded areas as well as to the flat, more exposed regions.
The tumbling action during plating provides some deburring of parts and saves you money. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
Work Item s – proposed revisions of this standard. It’s easy to join and it’s free. Once the plating reaches the desired thickness the parts are then dried and post-plating finishes are applied if required.
ASTM B – Haydon BoltsHaydon Bolts
Nonmagnetic Coatings on Magnetic Basis Asrm. Custom Industrial Processing, Inc. The mechanical plating process takes place in a tumbling barrel filled with tumbling media e. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.
The main advantage of mechanical plating over electroplating is the elimination of hydrogen embrittlement. Apparently, this ASTM standard uses a mechanical means to place zinc onto the metal surface and n695 approach is reported to be better then the hot dip method which can have the zinc flake off.
For equivalent thickness, mechanical galvanized is equal or superior to conventional galvanizing methods. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. We also work with both Type I as coated, without supplementary treatment and Type II with chromate conversion treatment B specifications for special processing needs.
Neither will be great for long-term marine exposure, I would suggest a high-build organic coating system probably with a zinc-based primer or thermal spray base layer.
Mechanical plating has the ability to plate sintered metal parts powder metallurgy without costly impregnation.