What are the requirements of quality inspection of window and door hardware accessories

Window and door hardware refers to the metal parts used for Windows and doors, including locks, handles, hinges, door hinges, etc. As one of the important accessories in home decoration and construction industry, the quality control of window and door hardware accessories is particularly important. For the quality inspection of window and door hardware accessories, there are the following requirements:

First, material requirements

1, the main material selection of good quality, no defects, no corrosion of high-quality copper or cast steel; Accessory materials, such as screws, gaskets, etc., should be made of steel with reasonable strength and hardness.

2. All kinds of chemicals, additives, additives and coatings used in production should meet national mandatory standards and be pollution-free to the human body and the environment.

Two, size requirements

1, the accessory style and connection mode are accurate, the clamping strength of the connection part should be appropriate, and the connecting parts should not be loose under the load state.

2. Size Tolerance shall conform to the requirements of product design parameters and product specifications.

Three, surface quality requirements

1, the surface of colored accessories should be smooth, without abrasion, scratches, corrosion and concave and convex defects.

2, colorless hardware (such as screws, etc.) surface should be pollution-free, no scratches, no burrs, no traces of wire drawing.

Four, functional requirements

1, lock core, hinge, various control devices and hardware coordination requirements are good.

2, compact structure, high accuracy of clamping edge.

3, after the service life test, should ensure the durability of the product.

V. Packing requirements

1. Hardware accessories of different models and specifications should be packaged independently according to the requirements of the designed products.

2, the appearance of the packaging should be neat, smooth, no damage, no obvious crushing. Packaging boxes shall comply with relevant standards and regulations.

The above are the requirements of quality inspection of window and door hardware accessories. From the aspects of material, size, surface quality, function and packaging, all aspects of product quality are considered comprehensively. As an important part of furniture and architectural decoration, the quality of window and door hardware accessories must be effectively managed and supervised to ensure that the products meet the quality requirements of the relevant national standards.