Special Process 3 Identification What are the special processes?

What defines the critical process.

Critical process: refers to the product realization process, and the performance of the final product is extremely important and affects the quality characteristics. , high accuracy of bearing holes, tolerance (0-+, lower than the difference, bearings can be assembled, higher than the difference, bearings are easy to wear, the noise of imported products exceeds the standard, and product failures occur frequently.

Aperture processing engineering needs to be used as a critical process, and work instructions are provided for production, monitoring, and measurement equipment. Establish quality control points and control key processes.

Special process: The process can be verified by continuous monitoring or measurement, and the organization shall implement any process to confirm. Welding.

Heat treatment. Plating, painting, casting, etc. The welding quality of the welded metal structural parts is verified by destructive test, and some processes are confirmed by the general process.

1.Formulate special process review and approval criteria, and determine the optimal process parameters (current, voltage, welding rod for welding iron plate with thickness of 3mm4mm,..Establish appropriate procedures and implement them.

2.The performance of electric welding equipment requires appraisal records and maintenance as required. 3.

Operator competence, experience requirements appraisal records. 4.Reconfirm periodically.

What ——— are included in the main structure

1. Foundation engineering: foundation, foundation, foundation contact beam, stressed bottom plate, room wall, room roof, etc.

2. Main project: frame structure beams, shear walls, columns, floor slabs, etc.

3. Maintenance structure: all walls

4. Roofing engineering: roofing, surrounding roof walls, roofing, etc.

5. Concrete staircase.

The qualification of special processes includes (criteria for process review and approval, equipment accreditation and personnel qualification, use of specific methods and procedures).

a.Criterion B. for Process Review and ApprovalEquipment Accreditation and Personnel Accreditation CUse of specific methods and procedures dFormulate a special process assessment plan.

Outreach: A person who evaluates and reviews the results of the confirmation of a particular process. User representative means that because the quality and safety of the product may be affected by the special process, it is necessary to invite the user or the user representative to participate in the confirmation of the special process to ensure that the product meets the user's requirements and expectations.

The user representative can be the end user of the product, the consumer or the person of the relevant body or organization acting on behalf of the user, who can evaluate and review the results of the confirmation of the particular process.

In the first part of the approval form in the special process, it is necessary to fill in the basic information such as the name of the enterprise, address, and contact **.

1. In the body of the special process confirmation approval letter, the specific content of the special process needs to be described in detail, including the required equipment, tools, materials, operating procedures, safety measures, quality control and other information.

2. At the end of the confirmation approval form in the special process, it is necessary to fill in the name, position, signature and date of the approver, as well as the name, position, signature and date of the appraiser. At the same time, it is also necessary to indicate the validity period of the special process, which is generally one year.