Thermal Performance and Cleanliness of Parts-NG28

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Home > Our Services > Testing > Raw Material & Fuel Chemicals > Metal Materials > Service Details

Thermal Performance and Cleanliness of Parts

Thermal performance is one of the important properties of materials, and it is the prerequisite to ensure the application of materials. Therefore, the thermal performance test is one of the important means of material science research. The purpose of ensuring cleanliness is to make the product reach the specified life, and not to shorten the service life due to pollution in the process of manufacturing, use and maintenance. Therefore, in order to ensure the product quality, the cleanliness test of parts is essential. NG28 can provide customers with fast and accurate thermal performance and parts cleanliness test.

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Thermal Performance and Cleanliness of Parts

? Service Background

Reduce the wear of particulate pollutants and improve the service life and reliability of the whole machine;
Prevent impurities from blocking, damaging and invalidating the filter element;
Quality control in the production process;
Important ways of material research.

? Service Content

Routine test items and standards

Metal linear expansion coefficient	ASTM E831
Melting point	ASTM E537，GB/T 1425
Metal specific heat method (sapphire)	ASTM E1269
The thermal diffusion coefficient (vertical)	ASTM E1461，GB/T 22588
Thermal diffusion coefficient (horizontal)	ASTM E1461，GB/T 22588
The metal thermal conductivity--ongitudinal	ASTM E1461，GB/T 22588
The metal thermal conductivity--transverse	ASTM E1461，GB/T 22588
Parts cleanliness--Extraction of decay curve test	VDA 19.1，ISO 16232
Parts cleanliness	VDA 19.1，ISO 16232

Adaptive range of product

It is suitable for metal materials and their products, auto parts, aerospace parts, electronic products, etc.

Routine sample requirements

Metal linear expansion coefficient	The maximum length and width are 10 mm, the maximum height is 25 mm and the minimum height is 2 mm. The upper and lower surfaces are flat and the parallelism difference is ± 25 μM. (Note: if the linear expansion coefficient is lower than 20 μM / m℃, the sample height needs to be 20 mm); Test temperature range shall be provided
Melting point	The sample size should be greater than 2g, and the sample material should be provided
Metal specific heat method (sapphire)	The sample size should be greater than 2g
The thermal diffusion coefficient (vertical)	Diameter: 12.7 ± 0.2mm or 10 × 10 ± 0.2mm, thickness: 1 ~ 3mm; Test temperature shall be provided; Send at least 3 samples in accordance with the size
Thermal diffusion coefficient (horizontal)	Diameter: 25.4 ± 0.2mm, thickness: 0.01 ~ 0.5mm; Test temperature shall be provided; Send at least 3 samples in accordance with the size
The metal thermal conductivity--ongitudinal	Diameter: 12.7 ± 0.2mm or 10 × 10 ± 0.2mm, thickness: 1 ~ 3mm; Test temperature shall be provided; Send at least 3 samples in accordance with the size
The metal thermal conductivity--transverse	Diameter: 25.4 ± 0.2mm, thickness: 0.01 ~ 0.5mm; Test temperature shall be provided; Send at least 3 samples in accordance with the size
Parts cleanliness--Extraction of decay curve test	The sample size is less than 30cm * 20cm * 10cm, and sealed independently; The total area of the test sample is more than 200cm²
Parts cleanliness	1. The sample is less than 30cm * 20cm * 10cm, and sealed independently; 2. The total area of the test sample is more than 200cm²