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Hi-Tech Industrial Park, Jinan, Shandong Province, China

QUALITY CONTROL

Quality control

Control of material, structure, hardness, dimensions and surface of parts.

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Materialidentification and analysis
Processhardness and structure
Detaildimensions and surface

QUALITY CONTROL

The control program is based on the risks of the part

SENNAI materials include spectral analysis, metallography, magnetic particle testing, hardness, coating, roughness and dimensional testing. Not every method applies to every position: the composition is confirmed in the task.

The control program is based on the risks of the part

WHAT TO CHECK

Four levels of verification

The characterization must have a clear method and criterion.

01

Material

Brand and identification of the original batch.

02

Structure

Metallography or magnetic particle testing if required.

03

Properties

The hardness, layer or coating in a specified area.

04

Geometry

Dimensions, shape and roughness of working surfaces.

HOW THE WORK IS CONSTRUCTED

Inspection is distributed across production stages

The input characteristics cannot be restored only by the final measurement. Therefore, some of the data is recorded on the material, some after heat treatment, and the geometry and surface after finishing.

Inspection is distributed across production stages

RESULT

Records in the volume agreed upon for the order

The form of the protocol, the sample and the composition of accompanying documents are determined before production, and are not promised equally for all products.

  • CharacteristicsWhat is being checked?
  • MethodHow it is measured.
  • CriterionHow is it accepted?
Transfer source data

BEFORE AGREEMENT

The control program is generated for a specific part

The list of checks depends on the material, technology and function of the product. Before production, characteristics that must be documented, critical dimensions and sample volume are determined. Control methods are not combined into one common promise: for each position, the applicability, criterion and format of the result are recorded.

01

Material

Mark, certificate or agreed method of identification.

02

Geometry

Critical dimensions, tolerances, shape and relative positions.

03

Properties

Hardness, layer, surface or coating as specified.

04

Party

Sampling, labeling, protocol and non-conformity rules.

NEXT STEP

Submit the requirements for acceptance of the part

Indicate special characteristics, sampling, record format and required documents.

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