Appearance quality requirements for stainless steel faucets

Section 1 Definition of Appearance Quality

1. Surface Treatment

The process of artificially forming a surface layer on the surface of the substrate material that has different mechanical, physical, and chemical functions from the substrate The intent of external treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product

2. Mechanical Polishing

The polishing of stainless steel faucet metal parts refers to the use of mechanical action to reduce the surface roughness of the workpiece, in order to achieve a bright and flat surface processing method, mainly referring to mirror polishing

3. Wire Drawing

It is a surface treatment method that uses grinding products to form lines on the surface of workpieces, playing a decorative role The wire drawing of stainless steel faucet products mainly refers to the surface treatment after polishing, and of course, a flat polishing treatment is required for the product

4. Sand blasting

Sandblasting is a process that uses compressed air as the power to form a high speed beam to beam materials onto the surface of the workplace to be treated, causing changes in the appearance or shape of the outer surface of the workplace, achieving a certain degree of cleanliness and different routing

5. PVD Physical Vapor Deposition

PVD refers to the process of using low voltage and high current arc discharge technologies under vacuum conditions, using gas discharge to make the target material evaporate and ionize both the evaporated material and gas The acceleration effect of the electric field is used to stack the evolved material and its reaction products on the workpiece

6. Electroplating

Electroplating is the process of applying the principle of electronics to deposit a thin layer of other metals or alloys on the surface of ceramic metals It is the process of using electronics to attach a metal film to the surface of metals or other data products, there preventing metal oxidation (such as rust), improving wear resistance, conductivity, reflection, corrosion resistance (such as copper sulfate), and enhancing aesthetics

7. Powder coating

Powder spraying is the process of using powder spraying equipment (electrostatic spray molding machine) to spray powder coating onto the surface of a workpiece Under the action of static electricity, the vendor will always advocate on the surface of the workplace, forming a vendor coating; The powdery coating undergoes high performance bagging, leveling, and solidification, becoming the final coating with varying effects (different variations of powdery coatings)

8. Product Definition

Side A: The surface of the product that can be observed from the front and top after installation, named the top and front of the water outlet, which is the primary part

Side B: After the product is installed, the observer needs to scroll left (right) horizontally for 90 ° to see the appearance of the product, which is the two sides of the product

Side C: The surface of the product that is generally not easily visible during device use, that is, the back

D-side: The surface of a product that cannot be seen under normal conditions during device use, i.e. the bottom surface

9. Definition of appearance defects

Deformation: refers to the deformation of a product that is uneven in appearance, has been altered to its original shape, or effects installation Bump: A concave mark on the surface caused by a bump

Scratches: Line marks on the surface caused by bumps

Sand hole: due to small holes left in welding positions or castings

Shrinkage porosity: There are many small, scattered, and irregularly shaped holes on the surface of the casting, with rough hole walls Cracks: Cracks that occurred in stainless steel materials under stress or welding (or both) Black Spot: Inputs contained in stainless steel materialYellowing: The phenomenon of products appearing yellow due to high welding or polarizing temperatures

Coat sand pattern (polishing pattern): The surface of the product can still clearly see the patterns presented by the sand belt polishing after mirror polishing or wire drawing

Interleaving pattern: The phenomenon where the direction of the pattern is not the same at the junction of two

Wave: The uneven appearance of a product

Section 2 Quality Requirements for Wire Drawing Appearance

Appearance quality requirements:

The appearance quality requirements include the quality requirements of components and main components, as well as the overall quality requirements of the product The focus of quality requirements includes safety, functionality, appearance grain direction, size requirements, and appearance defects

1. Safety: If there are no sharp edges, sharp edges, burrs, sharp tee, sharp corners, etc. Edges and corners should be

Rounded corners with R0.2-R0.5

2. Functionality: It should not affect the installation of the entire set of products, such as gaps or misalignments

3. Appearance grain direction: The surface grain of wire drawing and polishing should be uniform and common, without significant interspersed and miscellaneous lines

The polarized wire drawing at the welding insertion position should have a smooth transition

4. Appearance quality requirements for ABC surface of wire drawing parts

5. The polarized D-surface should not have yellowing or blackening The entire product should be clean and free from sharp corners and edges

6. The polarization and drawing patterns of the entire set of products should have the same direction and thickness

Precautions:

A. When there is a dispute about the appearance specifications, inspections can be conducted based on samples (or sealed samples)

B. Regarding different customers, there may be slight differences in the standards used, and the customer&# 039; Requirements shall be available

C. This specification only applies to wire drawing products without significant patterns. For special pattern requirements, customer specifications shall be followed.

Article source: Guangdong stainless steel faucet http://www.kpjieyuan.com/