Requirement & drawing
Confirm the material grade or reference, heat-treatment condition, dimensions, tolerances, surface treatment and application.
CAPABILITIES & QUALITY
Quality is a reviewable set of requirements — not a vague promise
Yixin breaks an order into material, dimensions, heat treatment, surface, inspection and delivery so that fewer assumptions remain hidden.
010.02 mmdrawing-based tolerance-band capability
0210 μm+hard chrome per side capability
03HV800+hard chrome hardness capability
04≈ 3 mmtypical induction-hardened case capability
These figures describe Yixin's process capability, not unconditional default values for every size or order. Dimensions, tolerances, chrome thickness, case depth, hardness, inspection methods and acceptance criteria must be confirmed against the drawing and application before order placement.
SIX CHECKPOINTS
A quality chain from inquiry to delivery
Material & batch
Review material information as agreed; define the scope of material documents before order placement when required.
Process control
Translate critical dimensions, grinding, heat treatment and plating requirements into executable process checks.
Final inspection
Verify dimensions, appearance and specified items using agreed methods; unlisted items are not treated as blanket promises.
Identification & packing
Confirm surface protection, identification, packing and receiving requirements for the product and transport method.
Issue review
For delivery issues, review the order, photos, measurement method and sample condition together before deciding next steps.
DOCUMENTS & INSPECTION
Agree reports, sampling and acceptance methods before the order
Material, heat-treatment or plating documents are supplied only when agreed for the relevant order. Third-party results apply only to the corresponding sample and report scope.