1 Scope
This standard specifies the terms and definitions, markings, materials, requirements, test methods, inspection rules and signs, packaging, transportation and storage of quartz glass diffusion tubes for solar cell silicon wafers (hereinafter referred to as quartz glass diffusion tubes).
This standard applies to transparent quartz glass tubes with an outer diameter greater than or equal to 200mm and a length greater than 2000mm for the solar cell wafer diffusion process.
2 normative references
The following documents are indispensable for the application of this document. For all references to the attention period, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document.
JC/T 181—2011 Transparent Quartz Glass Device for Semiconductors
JC/T 597-20l transparent quartz glass tube for semiconductor
3 Terms and Definitions
The terms and definitions defined by JC/T 597-2011 and the following apply to this document.
3.1
Port flatness flatness of tnbeend
The flatness of the quartz glass diffuser port.
3.2
Face perpendicularity perpendicularity oftubeend
The degree of verticality of the end face of the quartz glass diffusion tube and the axial direction.
4 mark
4.1 Marking method
The quartz glass diffuser is marked in the order of product name, product specification, production lot number and standard number.
4.2 Tag Examples
Example: In accordance with JC/T 2066-2011, the outer diameter is 330mm, the length is 2160mm, and the quartz glass diffusion tube for solar cell wafers with lot number 20091018 is marked as:
5 materials
Transparent quartz tubes used for quartz glass diffusion tubes should meet the requirements of the corresponding T-class products in JC/T 597-2011.
Other materials used for quartz glass diffusion tubes should comply with JC/T 181-2011 and the requirements agreed upon between supply and demand parties.
6 requirements
6.1 Specifications and Dimensional Deviation
6.1.1 The size of the quartz glass diffuser is agreed upon by both parties.
6.1.2 The deviation of the outer diameter, wall thickness deviation, ellipticity, eccentricity and bending of the quartz glass diffuser shall be in accordance with Table 1.
6.3 stress
Shiyan glass diffusion tube is only allowed to show uniform purple color in the stress meter
7 test methods
7.1 Specifications and Dimensional Deviation
According to the provisions of 6.1 of JC/T 597-2011.
7.2 Port Flatness
A quartz glass reference plane with a flatness of 0.01 m was placed in close contact with the port of the quartz glass diffusion tube, and a feeler with an accuracy of 0.01 m was used to measure the maximum clearance between the reference plane and the port.
7.3 Face verticality
Place the quartz glass diffuser tube on a platform with an accuracy of not less than 2 stages. Use a 400mm square bar with an accuracy of 1st level. Close to the platform while gently touching the end of the quartz glass diffuser tube on the other side, gently turn the quartz glass. Diffusion tube, find the maximum gap between the highest point of the pipe end face and the square ruler, measure the maximum gap with a feeler gauge with an accuracy of 0.01mm.
7.4 Appearance quality
Under natural light, use visual inspection. The defect size is measured with a vernier caliper with an accuracy of not less than 0.02 mm.
7.5 stress
Place the quartz glass diffuser tube in the field of view of the stress meter with a purple-red interference color. Move or rotate the specimen so that the brightest interferometric color appears in the field of view. Observe the color of each part of the specimen.
8 inspection rules
8.1 Inspection Project
According to the requirements of Chapter 6.
8.2 Decision Rules
Each quartz glass diffusion tube must meet all the requirements of Chapter 6. If one of the quartz glass diffusion tubes fails, it is judged as unacceptable.
9 signs, packaging, transportation and storage
9.1 mark
Each quartz glass diffuser tube should be accompanied by a product certificate at the time of shipment. The product name, specification, production date (or production lot number), standard code, inspector number, manufacturer name, or trademark are marked on the certificate.
9.2 Packaging
Quartz glass diffusion tubes should be packaged in a clean environment. The packaging should meet the requirements of protection and dust prevention to avoid scratching, damage, and contamination of the product. If packaging is required after single-piece packaging, the packaging shall also meet the protection and dust-proof requirements. Product packaging with the box into the product certification and packing list. Packing list should indicate quantity or weight, packing date and so on.
The packaging box should have storage and transportation logos, such as "glass products", "careful light", "do not invert", "moisture proof" and other words and graphics.
9.3 Transportation
In the process of transportation and handling, care should be taken with care and precautions should be taken.
9.4 Storage
The product should be stored in a clean, dry room without harmful gases.
You can achieve an elegant transition from wall to ceiling with Plain Cornice Mouldings/cornice molding/Plain Molding/ Pu Cornice , which are available in various designs to suit all tastes and styles and ensure a beautiful transition from wall to ceiling with a visually interesting effect, Plain Cornice Mouldings is simple but elegant.
Plain Crown Mouldings are very light, easy to install,paintable and drawing.
The elements are not just decorative, they also hide imperfections and crevices,Plain Cornice Moldings are with a double advantage.
Polyurethane Moulding is currently the most popular new high-end building decoration raw material in the market. It has the following excellent characteristics:
1. Superior quality: the product is not deformed, cracked or decayed; it is resistant to corrosion, acid and alkali and can maintain the stability of the material for many years. No worms, no termites; no water absorption, no water seepage, can be washed directly.
2. Convenient construction: the material is lighter, and all products have been painted with white paint, which can be directly pasted, which greatly saves labor and paint.
3. Easy to process: it can be sawed, planed and filed, almost no waste is installed, and it is economical and environmentally friendly. Good coloring: You can apply various colors of water-based and oil-based paint on the surface, and it will last for a long time after coloring. Imitation stone, imitation wood, imitation metal, wonderful.
4. Green environmental protection: no radiation, no volatility. After the high temperature channel is decomposed, it does not produce any harmful gas.
5. Excellent technology: beautiful, durable and exquisite products. The large pieces are magnificent and the small pieces are exquisite. Comprehensively improve the taste of decoration.
6. Wide range of uses: Both indoor and outdoor performance is excellent, suitable for interior and exterior decoration of residences, villas, hotels, American style salons, night clubs, clubs, dance halls, hotels, office spaces, conference halls, etc.
Plain Cornice Mouldings
Plain Cornice Mouldings,Foam Cornice Mouldings,Trim Mouldings,Ceiling Cornice Mouldings,Polyurethane Crown Moldings,Cornice Moldings
Suntronic New Materials Technology Co., Ltd. , https://www.dsmdecor.com