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From Noll, Inc.
Maximize corrosion resistance and reduce leadscrew surface impurities remaining from processing. Remove surface contaminations, such as iron particles left by cutting tools, that can form rust or act as initiation sites for corrosion with passivation. Generally speaking, passivation is the process of making a material passive or inert in relation to another material prior to using the materials together. The primary purpose of passivation for leadscrews is to remove surface contamination, that can foster corrosion. The thread rolling dies and cutting tools can impart these contaminants and should be removed for optimal longevity and service life of your leadscrews. Products & Services
Industrial cleaning services remove sludge and contaminants; deplug or clean filters; deblind screens or strainers; scour tanks or vessels; and perform biocide applications. They may also condition, clean and treat fuel, oil or other stored media.
Finishing and surface treatment services pretreat or finish the surfaces of manufactured components to meet roughness or surface condition requirements.
Anodizing is a process for finishing aluminum alloys that employs electrolytic oxidation of the aluminum surface to produce a protective oxide coating.
Surface preparation services clean, strengthen and prepare surfaces for additional processing and/or refine or roughen surfaces to meet finishing requirements. Cleaning processes include thermal cleaning, degreasing, spray washing, immersion washing, stripping or coating removal, and ultrasonic cleaning. Finishing processes include blasting, buffing, deburring, deflashing, polishing, electropolishing, honing, mass finishing, mirror finishing, oxygen cleaning, passivation, picking, sanding, and grinding.
Buffing and polishing services perform smoothing operations that change a metal's surface appearance. These operations can be for aesthetic and/or functional purposes.
Product Announcements
Topics of Interest
I have been using hardware made of 303 stainless steel and when exposed to a salt atmosphere, the parts begin to rust. I need to stay with stainless material. Is there another type of stainless steel...
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The Passivation process is typically an immersion process involving nitric acid or citric acid to remove free iron contamination by means of chemical dissolution or chelating the free iron molecule.
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Silicon dioxide and titanium dioxide have been used as AR coatings in solar cells but SiO has a low refractive index whereas TiO does not contribute to surface passivation. Silicon nitride is an...
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This paper presents a case history of a failure analysis performed on hybrid devices that exhibited electrical failures during thermal cycle with bias. Electrical testing revealed resistive shorts...
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This specification was approved by the assistant Administrator Office of Federal Supply and Services, General Services Administration, for the use of all Federal agencies 1.1 Scope. This specification...
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Technical Articles
Passivate Lead Screws for Extended Service Life
- Surface Coating and Protection
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