Quality assurance

Transport safety depends on the quality of railway springs, so the quality system is an important aspect of the production of “KAZ SPRINGS” springs at RPC SPRING LLP.

Satisfaction of customers - car-building and car-repair enterprises in the quality of products, delivery service, packaging, as well as price and operational characteristics, plays an important role in shaping the reputation of RPC SPRING LLP as a reliable supplier. Therefore, satisfaction monitoring and quality management is a priority for the plant.


customer satisfaction level
 

Quality management

Quality management includes the implementation of a quality system that ensures the stability of the quality of products. The built-in quality system allows to monitor performance at all stages of production, increasing the efficiency of processes.

 
Strategic objectives in the field of spring quality KAZ SPRINGS
Qualifications of all levels of staff
Control the quality of raw materials
Use of contemporary equipment
Business process efficiency and built-in quality system
Application of advanced spring control and testing techniques
 
Product quality control parameters
 

Input control of raw materials

chemical analysis of steel according to the requirements of IS: 228
the hardness of the workpiece is determined by the Brinell method according to IS: 1500
flaw detection of steel according to IS:3703, macrostructure studies IS: 7739, composition purity degree IS: 4163, grain size ASTM-E112
surface quality IS:3195: глубина обезуглероживания IS:6396, depth of decarburization IS: 6396
surface roughness IS: 3073


Quality control of finished products

100% flaw detection-post of non-destructive testing according to UIC822
Hardness, steel structure, spring decarburization depth.
Cargo characteristics are checked on test vehicles, indicators
stiffness
elasticity according to EN 13298
deflections under load
height under load

Geometric parameters
Deviation from the perpendicular
Total number of turns
Free height
Controlled diameter
Tolerance of parallelism of end surfaces
Height of the reference turn
Gap between the end and working turns
Sharpening length

Surface quality
Thickness, adhesion, coating color
Surface quality - roughness

Brand readability.


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