What is HYSF’s quality control process?

Hurtigt svar

HYSF operates under ISO 9001:2015 quality management system. Full traceability from raw materials to finished products. Incoming inspection, in-process controls, and final testing. Continuous improvement through customer feedback and failure analysis.

Hurtigt svar

HYSF operates under ISO 9001:2015 quality management system. Full traceability from raw materials to finished products. Incoming inspection, in-process controls, and final testing. Continuous improvement through customer feedback and failure analysis.

Quality Management System

Certifications

  • ISO 9001:2015: Quality management
  • ISO 14001: Environmental management
  • CE marking: European compliance
  • RoHS/REACH: Material compliance

Quality Control Stages

1. Incoming Material Inspection

  • Raw material certification review
  • Dimensional verification
  • Material composition analysis (spot check)
  • O-ring hardness and dimensions
  • Electrical contact quality

2. In-Process Controls

  • First article inspection (FAI)
  • Statistical process control (SPC)
  • Dimensional checks at each operation
  • Visual inspection checkpoints
  • Process parameter monitoring

3. Final Inspection

  • 100% visual inspection
  • 100% electrical testing
  • 100% pressure testing
  • Sample dimensional verification
  • Packaging inspection

Traceability

NiveauTraceability
Raw materialsMill certificates, batch numbers
ComponentsSupplier lot tracking
ProductionWork order, operator, date
TestningTest results linked to serial number
ShipmentFull documentation package

Continuous Improvement

  • Customer feedback: All issues logged and analyzed
  • Failure analysis: Root cause investigation
  • Corrective actions: Implemented and verified
  • Process updates: Based on learnings
  • Employee training: Regular quality training

Quality Metrics

  • First pass yield: >98%
  • Customer returns: <0.5%
  • On-time delivery: >95%
  • Customer satisfaction: >4.5/5.0

Kontakt os

Quality questions: quality@hysfsubsea.com

Audits: Customer audits welcome by appointment

Billede af John Zhang

John Zhang

(CEO og ledende ingeniør)
E-mail: info@hysfsubsea.com
Med over 15 års ekspertise inden for undervandsforbindelsesteknologi leder jeg HYSF's R&D-team med at designe højtryksløsninger (60MPa). Mit fokus er at sikre pålidelighed uden lækage for ROV'er, AUV'er og offshore-instrumentering. Jeg fører personligt tilsyn med valideringen af vores prototyper af brugerdefinerede forbindelser.

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John Zhang

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Jason Liu
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Lily Li
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