Third-party inspection company hardware fittings quality inspection points

In the process of quality control of hardware fittingsthird party inspectionThe company plays a crucial role.inspection of goodsWith the expertise and experience of our staff, we ensure that each batch of hardware fittings meets the established quality standards. Below, we will reveal the core points of hardware inspection.

I. Appearance quality inspection

Appearance quality is the first impression of the hardware fittings, the inspector will focus on the following aspects when carrying out appearance inspection:

1. surface defect: Inspect the surface of the fitting for scratches, dents, burrs, flying edges, air holes, cracks, deformations and other defects visible to the naked eye. These defects may negatively affect their usability.

2. Quality of surface treatment: For hardware fittings that have undergone surface treatment such as electroplating, spraying, oxidation, etc., the uniformity, adhesion, gloss and color consistency of the plating/coating need to be examined. These indicators are related to the corrosion resistance and service life of the products.

3. clarity of marking: Check that markings on products such as model, lot, and brand are clear, complete, and durable. Accuracy and durability of markings are critical for product traceability and management.

II. Dimensional accuracy measurement

Dimensional accuracy is the key to the normal assembly and use of hardware fittings. The inspector will use high-precision measuring tools to strictly control the following items during this inspection:

1. Thread parameters: Includes tooth type, pitch, etc. to ensure reliability and interchangeability of threaded connections.

2. Hole Diameter and Location: Check the diameter and positional accuracy of the holes to ensure accurate alignment with other components.

3. Overall symmetry and flatness: Evaluate the overall symmetry and flatness of the product to ensure its stability and balance during assembly and use.

III. Weight verification

Weight is an important indicator of the quality of hardware, especially where precise cost control is required.

The inspector will use precision balances or weighing equipment to verify the necessary weight of the hardware to ensure that it meets the design requirements or the weight range specified in the contract.

Four,Functional Testing

In addition to the above basic inspection items, a series of performance and function tests will be conducted according to the specific use of the hardware fittings.

For example, for load-bearing hardware fittings, load-bearing tests will be carried out to verify their load-bearing capacity and safety in actual use; for sealing hardware fittings, sealing tests will be carried out to ensure that no leakage will occur in the course of use. In addition, some assembly tests may be done to ensure that the fittings can be used normally.

V. Packaging and Transportation Inspection

Packaging and transportation inspections are also third-partyinspection companyA link that cannot be ignored. They will check whether the packaging of hardware fittings meets the requirements of moisture-proof, shock-proof and rust-proof, as well as whether the fixing and protection measures are in place during transportation, so as to ensure that the products are still in good condition when they reach the hands of customers.

Third-party inspection companies play an integral role in the quality control of hardware fittings. They escort the quality of hardware fittings through comprehensive inspection programs and strict inspection standards.

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