ACCURACY AND QUALITY CONTROL

 Accuracy and Quality Control

The concept of quality is somewhat elusive, chiefly because it is a phrase, which expresses a relative, even though noticeable, variance between one thing and another such as a product or service. In determining quality, we would normally have some implicit standard in mind, whether in our case with the quality of our castings, or in our Quality Management System, ISO 9001. In another form quality could also be judged in relation to price. Nowadays manufacturers, such as ourselves, have to provide these and many other features, in order to maintain sales and a competitive edge against the competition. 

As part of our continued commitment to Quality Management Systems, Pye London Limited was first registered as an ISO 9002 approved company in 1993 (now ISO 9001). This was achieved in order to maintain standards at the highest level. We support a fully integrated Documented Quality System, which is annually reviewed by National Quality Assurance Limited. 

For Pye London Limited, the above points have constantly played an important part in the development of our company’s strategy. It has always been the policy of the company’s executive management to provide a reliable and efficient service to all its customers. Whilst continuing to conform to the company’s long-term objectives, which are, maintaining registration to the standard BS EN ISO 9001, along with sustaining customer satisfaction at the highest economic level. 

British Standard Grades for cast iron may still be defined by minimum tensile strengths (See our products section for further information on Flake Graphite Cast Irons) in separate test bars, so irons that met the old specification will also meet the new ones. In the New Standard, there are options to define the grades by hardness, or by strength of cast-on samples or casting sections, but there are different ranges of strength according to the relevant wall thickness. We feel that one of the important considerations is to continue to exercise the primary right of the foundry to choose the casting analysis (whilst working to customers specification), to maintain machinability, required hardness and close grain in the design concerned. Whatever that analysis gives in a test bar defines the grade, when defined by tensile strength.