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Quality Control

Quality Control

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Quality Certification/ Assurance

1.Independent, effective and standardized quality control system based on modernized enterprise system

2.Every detailed manufacturing process is monitored and controlled by a relevant Standard Document and QC Document.

3.Providing high-level quality supervision services to customers and scientifically, effectively theoretical data to production through integral quality check in manufacturing processes with advanced analyzing instruments and testing facilities。

4.ACRC was certified according to ISO 9001 Quality Standards and ISO 14001 Environmental Standards in July of 2006, making a new step toward a cleaner and more environmental-friendly manufacturing process.

Qulity Control System

Serial No. Operation  Control Content  frequency Control methods Responsibility  Criteria  Responsibility Department
1 Raw Material Chemical and physical test Every lot Company test center will test every lot of raw material; Return the unqualified material;
 Keep sample of every bag of material until the finishing of this lot of blocks, 
Make the raw material can be tracked.
 staff of raw material workshop, 
raw material technicians
 Acceptance standard of raw material  raw material workshop, 
quality inspection department
Appearance and impurity content  Every lot  The appearance and impurity content of every lot of raw material must be tested strictly. 
Batching workers must infrom the qulity inspection 
department and production department to dispose the unqualified raw material if there is any anusual about raw material.
staff of raw material workshop, 
raw material technicians
 Acceptance standard of raw material quality inspection department,
production department 
2 Grog crushing Chemical Composition, particle size Twice/shift Chemical composition must be controlled as per the requirement of company standard. 
The chemical test will be taken every shift.Particle size
 of grog need to be controlled strictly and the grog over the standard size will be crushed again. 
process technicians, quality inspector  enterprise standard quality inspection department,
 production department 
3 Sand Mold
Dimension of Tolerance, 
Quality of sand mold
 every set of mold  Mold plate quality should conform to the enterprise internal control standard,
 and mold size need to be executed in strict accordance with the production schedule drawing
sand mold technicians, quality inspector enterprise standard quality inspection department, 
production department 
4 Furnace Technology Electric furnace process operation procedures Twice/shift Inspection department and Production department will 
assign the quality inspector and  process technicians to supervise furnace operation process, 
the violation of furnace operation process will be punishment strictly.
process technicians, quality inspector A. furnace process operation standard,
B. National standard
quality inspection department, 
production department 
 Melting liquid Chemical composition Test  Melting liquid will be taken a sample to be reserved every batch furnace, at the same time, 
the melting liquid will be analyzed each shift every day. 
The test centwe must notify the production deparment immediately if there is any problem.
testing staff
5  Semi-finished Products Weight,
 Dimension, 
Appearance, 
 Defects,
Cracks,
Density,  
Chemical Composition
 Every Piece Every piece block must be taken strict inspection, including the weight, density, dimension and flatness of surface.
 The cracks must conform to the National standard and customer's standard. 
The overproof blcoks must be rejected. Take the sampling test about the chemical composition once a day, 
to ensure the stability of the chemical composition. 
Semi-finished product inpsector,
 Inspector team leader
Standard of contract quality inspection department
6 Grinding
Appearance, 
 Dimension,
 Every Piece  Test the appearance and dimension during the process of grinding by the quality inspector, 
 stop processing immediately when found the defective block, and take the blocks returning procedures; 
 the block size must be consistent with the size of the production schedule 
and the appearance should comply with the acceptance criteria.
quality inspector  Standard of contract or National standard quality inspection department
7 Finished Products  Weight, 
Dimension,
 Appearance, 
 Defects,
Cracks,
Density, 
 Chemical Composition
 Every Piece The appearance and interior quality must conform to the standard of customer. 
 The quality inspector should check every blocks seriously and record the test report. 
The qualified blocks must be marked clearly and be transfered to assembly platform. 
Finished product inspector, 
inspector team leader, 
Quality department director, 
Standard of contract or National standard Quality inspection department
8 Assembly  Dimension  Blocks in every position  The total assembly size must conform to the drawings and the customer's standard. Quality Inspecor,
 Engineer technicians
Standard of contract or National standard quality inspection department, 
production department