alloy forged steel grinding media balls, high chrome grind-steel balls

Quality-Policy

Suizhou Gaincin Machinery Co.,Ltd(GAINCIN.com & Showroom: gaincin.bossgoo.com) as an ISO9001:2008 certified Company, quality management is central to every aspect of our business from the advice we give customers to the delivery of fully tested and quality assured products.

GAINCIN objective is to provide products that meet customers' expectations, not just in terms of product quality (fit, function, performance and appearance) but also in terms of delivery and cost.

To ensure that this objective is achieved consistently, GAINCIN implements an effective Quality Management System (QMS), in accordance with ISO 9001:2008. The main purpose of the QMS is to ensure that products are produced to the correct specification, by a highly skilled workforce, and to ensure the continual improvement of product quality and customer service.

QA Processes

Raw castings are produced in accordance with the relevant metal/material specifications and are subject to initial visual inspections. Machining is only carried out in ISO9001:2008 accredited machine shops that are responsible for machining operations. Certificates of Conformance are available on request.GAINCIN Quality Assurance Department is responsible for final checks and sign-off prior to dispatch according to our QA Processes.

Testing Options

Dimensional Accuracy

The combination of equipment available allows optimum flexibility whether measuring the most complex components to the tightest tolerances or simple components that need to be measured quickly.

Mechanical Properties Testing

Used to check that alloys and castings are within specification:

Hardness Testing: A non-destructive test giving a numerical value, which can be used to assess the machinability and wear resistance of an alloy.

Tensile and Impact Testing: Conducted on test specimens, these tests commonly measure ultimate tensile strength, yield strength, elongation and reduction of area data. Other tests can determine the ductility and strength of a sample by measuring the amount of energy absorbed during fracture.

Relevant equipment is set up in the factory. At the same time, we can also provide third-party testing data according to customer requirements. For example, SSG, etc.

Other inspection related to Castings & Forgings

For the above basic testing projects, we also have long-term third-party testing organizations to meet customers' requirements for some special testing projects.

Dye Penetration and Fluorescent Powder Testing: Used for both ferrous and non-ferrous metals, these tests can reveal tiny surface cracks, pores and other surface imperfections but cannot reveal internal defects.

Magnetic Particle Inspection: Used to reveal small cracks at or near the surface of ferrous alloys by creating a strong magnetic field around the casting. Small metal particles are used to detect distortions in the magnetic field as defects and voids react differently to surrounding metal.

Ultrasonic Testing: High frequency acoustic energy is transmitted into the casting and measurements of deflected energy can reveal the location and size of internal defects. This method can also be used to measure wall thickness and nodule count in ductile iron.

Radiographic Inspection: Radiation from an x-ray tube is used to reveal internal defects as they absorb less radiation. The areas where less radiation has been absorbed are revealed on radiographic film.

Eddy Current Inspection: Used to detect minor cracks and defects near the surface and discontinuities in the casting caused by material changes. This is a fairly expensive process and is limited to electrically conductive metals.

Pressure Testing: Where part of the specification is for a pressure-tight casting; air, water or inert gas are used to test the casting for leaks under pressure.