Metal Material Test Coating Plating Analysis Coating Thickness Detection Coating Pore Crack Detection

Metal material coating/plating analysis Coating thickness detection/coating pore detection/coating crack detection

In order to prevent corrosion, wear or fatigue fracture of steel materials during storage, transportation and use, various surface coating treatments have been widely used. Including surface infiltration of Zn, Al, Cr, V, Nb, B, etc. Coating processes include hot dip, electroplating, chemical plating and heat treatment. Coating/plating can not only decorate the appearance of parts and repair surface defects of parts, but also impart special properties to the surface of parts, including improving surface hardness, wear resistance, corrosion resistance, conductivity and high temperature oxidation resistance. The products involved include household appliances, automobiles, doors and windows, metal fasteners and electronic products.

Test items

Coating thickness detection
Coating thickness refers to the vertical distance from the surface to the boundary line of the infiltration layer interface. For the case where only the compound layer is formed and the interface is flat, the determination of the layer depth is very simple. For penetration layers with a diffusion layer, the layer thickness should include the compound layer and the diffusion layer. The measurement methods of coating thickness include coulomb method, metallographic method, eddy current method and X-ray fluorescence method.

Coating porosity detection
During the process of infiltration and leaching, the infiltrated elements diffuse inward, while the iron element diffuses outward, but the diffusion rates of the two are different. Therefore, pores (or looseness) are inevitably generated in the compound layer, especially near the surface. The quantity, size and distribution directly affect the weldability and service performance of steel.

Coating crack detection
During the treatment process, due to phase change stress, cracks may occur in the brittle compound layer, and cracks also directly affect service performance. Therefore, the characteristics of the cracks, that is, the length, number and distribution of cracks, should be examined.
In addition, the metal laboratory can also provide coating composition analysis, surface stain analysis, surface hardness analysis and adhesion strength analysis.

About Us

Shenzhen LCS Compliance Testing Laboratory Ltd., abbr. for LCS, was founded in 2004 in Shenzhen, LCS is now growing into an independent comprehensive third-party institution which focuses on test & certification. Profound technical background and diligent working attitude decided LCS with an outstanding high starting point from the outset，pioneering spirit and consciousness of keeping pace with the times which predestined the thoroughly tempered course of LCS.

Our Labs

LCS Founding Members have engineering background and had gradually built up Safety Lab, EMC Lab, RF Lab, SAR & HAC Lab, Reliability Lab, Lighting Electrical Lab, LED Lighting Performance Lab, Energy Efficiency Lab, Electronic Cigarette Testing Lab, Chemistry Lab, BQTF, Environmental and Occupational Evaluation Lab, Battery Lab, Toy Lab, Textile Lab, Food and Food Grade Material Lab. The establishment of our comprehensive labs ensure our test and certification scope covers almost all fields, such as Reliability and Safety test, EMC test, Chemical Hazardous Substances test, Material Analysis, Food Contact Material test, Bluetooth Test & Certification, Environment and Occupational Health, Performance test of spare parts of Automobile and so on.

Authorization

Moreover, LCS won many authorized qualifications both domestic and overseas. LCS is recognized as IEC/ISO17025 laboratories accepted by CNAS and NVLAP, accredited by CPSC, CMA, accredited for CQC, ISTA, CBTL, SASO, SABS. Meanwhile LCS become laboratory authorized by TUV, BQTF issued by the SIG. LCS had also signed cooperation agreements with FCC, ISED, ETL, CEC, UL, E-Mark, CETECOM, KTC, SAA Approval and many other authoritative institutions, hence we can provide our clients with efficient and professional service for product test and certification.

Experience

Our RF experience ranges from WLAN (802.11b/g/n/a/ac), Wi-Fi 6E, Bluetooth (802.15.1), ZigBee (802.15.4), Z-Wave, UWB (802.15.3), WiMAX (802.16), SRD, DECT, RFID, NFC, GSM, WCDMA (+HSDPA/HSUPA), LTE, 5G (NR/VoNR/eMTC/eMBB/URLLC),UHF/VHF, WHDI, AM, FM, DAB, DVB, GPS, GNSS, COMPASS, GLONASS and more. The products we are mostly working with are basestations, client adapters, laptops, cordless phones, baby monitors, cellulars, radars, sensors, scanners, receivers, immobilizers, remote controls, etc. Modern products incorporate not often one, but a variety of co-existing technologies.

Welcome

LCS is a reliable party. With more than 20 years hands-on experience in the field of Radio, Telecom, EMC and Safety certification, including country approvals worldwide, we will guide you with our knowledge. You are very welcome!

We will be pleased to assist you with your questions or inquiries, please contact us.