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.
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CIP is certified to work with coating for zinc deposited mechanically onto iron and steel basis metals.
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All deposited coatings should have a bright uniform silvery appearance, and a matte to medium-bright luster. The Ability to plate parts, which tangle the glass impact media used in the process, tends to asm parts from tangling. Uniformity of thickness depends on part size and shape with typically thinner deposits on edges and thicker deposits in recesses.
Eliminate retapping of units: Mechanical plating has the ability to plate sintered metal parts powder metallurgy without costly impregnation.
This mechanical plating process characteristically makes this technology an ideal choice for plating hardened steel springs.
ASTM B – Haydon BoltsHaydon Bolts
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. Because mechanical plating is so uniform, you can save money by coating at lower average thickness.
Specializing in Mechanical Zinc Plating and Galvanizing Uniformity of thickness depends on part size and shape with typically thinner deposits b65 edges and thicker deposits in recesses. The ability to plate flat parts: Zstm 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. Threaded peaks especially show no build-up plating thickness.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
For equivalent thickness, mechanical galvanized is equal or superior to conventional galvanizing methods. Plating does not require the added production step and cost of non-reliable post plated baking, as is the case with electroplating. Are you an Engineering professional? Join your peers on astn Internet’s largest technical engineering professional community.
Appearance is uniform comparatively smooth with a satiny texture and has none of the discolored and mottled effect o hot-dip galvanizing. The ability to plate zinc, cadmium, tin or lead any mixture of these materials.
ASTM B for coating of Zinc mechanically onto IRON/STEEL. – Corrosion engineering – Eng-Tips
Along with those post-plating services, we offer chromate finishes in clear trivalent, yellow, black, and olive drab chromates. The main advantage of mechanical plating over electroplating is the elimination of hydrogen embrittlement. Register now while it’s still free! Mechanical Galvanizing is a room temperature process that does not detemper heat-treated parts. Mechanical Galvanizing does not fill valleys of threaded fasteners and their parts mate quickly and easily.
Hydrogen embrittlement is a phenomenon which causes materials to lose their strength and become brittle. astk
Mechanical Plating & Galvanizing
Red Flag This Post Please let us know here why this post is inappropriate. This makes mechanical plating an ideal process for plating flat stampings and washers. This specification covers the requirements for zinc coatings astmm are mechanically deposited on iron or steel basis metals. It’s easy to join and wstm free.
Because Mechanical Galvanizing is an extension of mechanical plating technology; it does not produce hydrogen embrittlement and does not require lengthy non-reliable post-plate baking cycles.
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.
Is there an ASTM that provides a standard for the high-build organic coating? Any metal asrm can be made into a fine powder can be mechanically plated, however CIP specializes in zinc, tin, and aluminum.
The tumbling action during plating provides some deburring of parts and saves you money. Mechanical plating is he method preferred by many engineers for hardened fasteners and stressed components. The zinc coatings are classified according ast, thickness and identified into two types; as coated without supplementary treatments or with colored chromate conversion treatment.
What is Hydrogen Embrittlement Hydrogen embrittlement is a phenomenon which causes materials to lose their strength and become brittle.
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Mechanical Galvanizing produces parts that are ready to use without any further processing steps. Download Now Defense manufacturing is all about project manufacturing and project accounting. Also – My application are exposed structural steel members that are placed in GUAM heavy salt marine environmentwhich method would you use for corrosion protection OR if you know of a better way for corrosion protection, please share it. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
The mechanical plating process is a process in which fine metal powders are cold welded to metal components without electricity and without heat. Thermal spray probably aluminum would be better than paint for marine exposure. The mechanical plating process takes place in a tumbling barrel filled with tumbling media e. Excellent Adhesion and controlled uniformity of coating thickness: