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Chemical transformation film Solution
Our qualifications:
Surface finishes
Chemical transformation film services
Chemical conversion coatings are mainly used for metal anti-corrosion and wear resistance. The conversion film also has good paintability and can be used as the bottom layer of organic coatings; during cold processing, the conversion film layer can lubricate and reduce wear, allowing the workpiece to withstand higher loads.
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Part surface treatment
Aluminum & magnesiumchemical transformation film
Chemical conversion film of aluminum and aluminum alloy (MIL- DTL-5541F) is in oxidizing chemical conversion solution, the process in which the surface of aluminum reacts with the chemical oxidizer in the chemical conversion solution to form a chemical conversion film.
Chemical conversion film of magnesium and magnesium alloy (AMS-M-3171) is chemically or electrochemically treated to form an insoluble film with good adhesion, which is composed of oxide, chromium, phosphide and some other compounds.This film can protect the substrate and metal materials from corrosive environment, but also improve the adhesion of the coating film.
Type of chemical transformation film for CNC machining parts
- Aluminum and aluminum alloy chemical conversion coating (reference standard MIL-DTL-5541F)
| Types | Maximum machining size（cm） | Xavier |
| Type I | Contains hexavalent chromium | √ |
| Type II | Free of hexavalent chromium | √ |
| Classes | description | Xavier |
| Class 1A | For sprayed or unsprayed products requiring optimum corrosion resistance | √ |
| Class 3 | Used for antisepsis of products requiring low resistance | √ |
- Chemical transformation coating of magnesium and magnesium alloy (AMS-M-3171)
| Types | description | Xavier |
| Type I | chromate treatment | √ |
| Type II | dichromate treatment | √ |
| Type III | Electrochemical anodic oxidation treatment | |
| Type IV | Chromic acid coating brush treatment | √ |
| Type V | Fluorine anodic oxidation process with anti-corrosion treatment | |
| Type VI | Chromic acid passivation treatment | √ |
Critical items
Non standard requests
* We offer MIL-DTL-5541F and AMS-M-3171 chemical conversion coatings. Test methods: salt spray test, wet tape adhesion test, surface resistance test (only for level 3 coating). If you have special needs, please contact sales@xavier-parts.com
**Porous conversion film can absorb organic dyes or inorganic dyes and dye them into various colors. If you have special needs, please contact sales@xavier-parts.com
The Xavier`s Chemical conversion membrane technology capability
- Substrate: aluminum and aluminum alloy, magnesium alloy
- Reference Standard: MIL-DTL-5541F, AMS-M-3171
- Test method: salt spray test, wet tape adhesion test, surface resistance test (for Class 3 coating only)
| Type | Aluminum alloy dichromate treatment | Aluminum alloy environmental protection passivation | Magnesium alloy treated with dichromate | Magnesium alloy environmental protection passivation |
| Maximum machining size | 60*50*100 | 230*45*110 | 40*20*40 | 40*20*40 |
| Maximum weight per piece | 40 | 300 | 10 | 10 |
| Colour | Light yellow, golden yellow | Off-white | Golden yellow, rainbow | Off-white |
| Environment | Non environmental protection | environmental protection | Non environmental protection | environmental protection |
Quality
We have high standards for Part surface treatment
We manufacture your custom parts according to strict manufacturing standards and ensure all parts and processes adhere to the Xavier Standard. A thorough verification of these requirements is included in our inspection report that we ship with every order.
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Standard 1PO consistent
We ensure that every part after machining is as specified in the PO as customer requirements.
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Standard 2Quality check
Prior to MP shipment to ensure that each part meets order specifications and Xavier standards.
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Standard 3Require consistent
Ensure conformance of parts and any required documentation prior to dispatching the order.