In-depth Analysis of Hardware Door Handles: A Comprehensive Guide from Production to Selection

The seemingly small hardware door handle actually embodies precise craftsmanship and strict standards. From raw materials to finished products, every step affects their durability and safety. Below, we will comprehensively reveal the production code, material secrets and inspection criteria of door handles for you, and also recommend reliable brands.

1. A precise and complex production process

High-quality door handles are refined through five core processes. First comes the mold design and material preparation. After modeling with CAD software, a dedicated mold is customized. Then, based on the material, laser cutting or sawing machines are selected to cut the raw materials. Metal materials are mostly formed by stamping or casting, while high-end materials such as stainless steel need to be precisely processed by CNC machines to ensure that the dimensional error is less than 0.1mm.

After forming, it enters the crucial surface treatment stage: stainless steel is mostly treated with wire drawing to prevent fingerprints, aluminum alloy is anodized to enhance hardness, and zinc alloy is electroplated to form a protective layer. Only after the assembly of components and the initial inspection can qualified products enter the final testing stage.

2.Material selection based on local conditions

The mainstream materials in the market each have their own suitable scenarios. Stainless steel of 304 grade is the mainstream, which is corrosion-resistant and has high strength, accounting for 35% of the market share. It is suitable for humid environments, but its styles are relatively limited. Aluminum alloy weighs only one-third as much as stainless steel. After oxidation treatment, it is wear-resistant and stain-resistant, making it the first choice for modern minimalist styles. The designer recommendation rate reaches 60%.

Zinc alloy door handle can achieve various shapes due to its excellent castability and has a rich variety of surface treatments. However, it is necessary to pay attention to choosing products with high purity to avoid peeling. In addition, ceramic materials occupy the high-end market with their unique artistic sense, while copper materials, due to their higher cost, are mostly used in scenarios such as villas.

3. Inspection Standards for Ensuring Safety

Compliant products need to pass multiple authoritative tests. The dimensional accuracy is verified by a three-coordinate measuring machine to ensure compatibility with the standard door thickness of 35-60mm. In terms of mechanical performance, it needs to pass a 100,000-cycle opening and closing fatigue test (equivalent to 20 years of use), and the tensile strength must withstand an external force of more than 50kg without deformation.

Corrosion resistance test is a key indicator: The salt spray test chamber simulates a harsh environment for ten years, and the surface of qualified products shows no rust. The surface quality should reach a smoothness of Ra0.4μm, and the adhesion of the coating should not fall off after the cross-sectional test. All these tests must comply with national mandatory standards such as GB/T 20965.

4. Peace of Mind Choice: Degol Brand Guarantee

The Degol brand, with 13 years of production experience, fully complies with the above standards in its products. It is made of high-quality aluminum alloy base material and undergoes high-end surface treatments such as PVD, making it suitable for various door types. Each batch of products has passed salt spray tests and fatigue tests, comes with a one-year warranty and online technical support, and has a 100% on-time delivery rate. It is a reliable and compliant choice.

The small door handle holds the code to the quality of home furnishings. Only by recognizing standardized craftsmanship, suitable materials and compliance testing can you select durable and safe products.