Кварцевые тигли 99.99% непрозрачные плавленые для литья ювелирных


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Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-15-2025 0.82 $* 0.63 $*
Aug-15-2025 0.45 $* 0.89 $*
Jul-15-2025 0.72 $* 0.19 $*
Jun-15-2025 0.86 $* 0.66 $*
May-15-2025 0.46 $* 0.82 $*
Apr-15-2025 0.15 $* 0.49 $*
Mar-15-2025 0.63 $* 0.26 $*
Feb-15-2025 0.32 $* 0.93 $*
Jan-15-2025 0.64 $* 0.50 $*

Характеристики



Product Description




Quartz Glass Products
Quartz glass is a single-component glass of silicon dioxide, which is usually divided into two categories: transparent quartz glass and opaque quartz glass (fused silica). Transparent quartz glass has only a small amount of air bubbles, and has a very high optical uniformity and transparency. It is made of silicon tetrafluoride in a crystal box and melted at high temperature. The SIO2 content is above 99.95%, and the high-purity quartz glass content is 99.999%. . Opaque quartz glass is used vein quartz, quartz sand as raw material, and it is melted at high temperature. It contains more than 99.5% SIO2.

Characteristic:
1.High temperature resistance
The softening point temperature of quartz glass is about 1730 ° C, which can be used for a long time at 1100 C, and the maximum temperature for short time can reach 1450 C.
2.Corrosion resistance
With the exception of hydrofluoric acid, quartz glass has almost no chemical reaction with other acids. Its acid resistance is 30 times that of ceramics and 150 times that of stainless steel, especially the chemical stability at high temperatures, which is impossible for any other engineering materials.
3.Good thermal stability
The thermal expansion coefficient of quartz glass is extremely small, and it can withstand severe temperature changes. The quartz glass is heated to about 1100 ° C and will not burst when placed in normal temperature water.
4.Good light transmission performance
Quartz glass has good light transmission performance in the entire spectral band from ultraviolet to infrared, and the visible light transmittance is above 93%, especially in the ultraviolet spectral region, and the maximum transmittance can reach more than 80.
5.Good electrical insulation performance
The resistance value of quartz glass is equivalent to 10,000 times that of ordinary glass. It is an excellent electrical
insulation material and has good insulation properties even at high temperatures.



Specification


item
value
Materials
99.99% pure quartz
Applications
casting, melting, lab
Product Name
Silica Crucible
Color
Milky White
Use
Metal Casting
Size
Size Customized
Packing
Carton
MOQ
1 Piece


Technical Data




Products Description




Our Workshop








Product Processing
1. Mulititool Machining.
The quartz material will be stuck on the board and be absorbed by electromagnet on the workbench. In order to cut the material,
the workbench rises slowly by electromotor and the blade revolves high-speed and repeated. According to the requirement of the
customer, the machine can cut the whole material into 1-1000mm wafer. The advantage of this step is stable size and low defective
percentage.2. Milling.
The surface of the material can be processed into plane, vertical plane, inclined plane and different kinds of groove or formed
surface by the rotary milling cutter of the machine. It also can be made into spiral groove, cam and the complex thread and spline
shaft.
3. Cylindrical Cutting.
The parallel misalignment of the product can reach 0.01millimeters after cutting. The main reason to get accurate product is that
the computer can control this machine.
4. Chamfering of edge
The quartz product's edge or shape will be changed smooth and rounded. Because of this, it is not easy to broke and damage with
eternal force for the quartz piece or other quartz product.
5. Grinding.
different kinds of lapping machines is chosen by producing different sizes, shapes, and accuracies products. In fact, it is not
worry about the resistance of the grinding to damage the product. The reason is that the resistance is too small and it grides two
sides evenly. The benefit of this step is high production efficiency.
6. Manual grinding.
The traditional manual grinding is took by the high accuracy quartz component from the customer. The technician of our factory own
excellent workmanship and skillful technique. They can control the accuracy deviation under 0.07mm.

7. Polishing.
Workers is polishing the quartz material with polishing wheels. Polishing wheels are composed of canvases, felts and leather. The
quartz piece is clamped by metal disks with polishing agent. The quartz piece become dazzling light after the speed of 20m/s..

8. Quality inspection
The high quality is reputation guaranteed of our factory. There is a set of scientific and rigorous quality control system in our
factory no matter the raw material, semi-finish product and finished product. The final purpose is to satisfy the requirement of
the customer.


Application


Widely used in electric light source, electrical appliances (electric), semiconductor, optical communications, military
industry, metallurgy, building materials, chemical, machinery, electricity, environmental protection and other fields





Company Profile




Product packaging




FAQ


1. who are we?
We are based in Jiangsu, China, start from 2009,sell to South Asia(10.00%),Northern Europe(10.00%),Western Europe(10.00%),Eastern Asia(10.00%),Mid East(10.00%),Oceania(10.00%),Africa(10.00%),Southeast Asia(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Quartz tube,Quartz glass,Quartz Crucible,Alumina ceramic,ITO glass

4. why should you buy from us not from other suppliers?
Fengqiang is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Japanese


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