Quartz Crucible High-Temperature Resistance Fused Silica for Melting Graphite Crucible

Product Description

 

Product Description

> Quartz crucible can be used below 1450 degrees, transparent and opaque two. Translucent quartz crucible by arc method is an essential basic material for drawing large diameter monocrystalline silicon and developing large scale integrated circuit. Nowadays, the small transparent quartz crucible has been replaced by this crucible in the developed countries of semiconductor industry. It has the advantages of high purity, strong temperature resistance, large size, high precision, good insulation, energy saving, stable quality and so on.

> Can not contact with HF, high temperature, easy and caustic soda and alkali metal carbonate action.

> Quartz crucible is suitable for melting samples with K2S2O7, KHSO4 as flux and Na2S207(first dried at 212 degrees) as flux treatment samples.

> Quartz is brittle and easy to break, so pay attention when using.

> In addition to HF, quartz glass crucible common dilute inorganic acid can be used as cleaning solution. Quartz crucible 18 inches and 20 inches 22 inches are commonly used in domestic drawing of monocrystalline silicon. Some manufacturers also use 22 and above crucible. At present, the crucible technology produced by large domestic crucible manufacturers is relatively mature. Its production uses raw quartz sand imported from the United States and Norway high purity quartz sand two. There are also small factories using domestic materials and the quartz crucible produced by the raw material has a certain effect on the stability of the drawing of monocrystalline silicon.

At present, the crucible production coating technology has been used by most manufacturers. It is that the surface of the crucible made of ordinary quartz sand is coated with a layer of barium dioxide solution to form a dense layer. The dense layer can prevent the reaction between silicon and quartz crucible in the high-temperature drawing process of monocrystalline silicon to improve the crystallization rate.

Quartz crucible production process: Unimine high purity quartz sand → high purity graphite mold → vacuum charging molding → vacuum arc melting → natural cooling release → quartz crucible preliminary detection → cold processing sandblasting, cutting, chamfering → quartz crucible secondary detection → ultra-clean cleaning, ultrasonic, high pressure spray, automatic drying → quartz crucible three tests → vacuum packaging → finished products storage

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Packaging & Shipping

Company Profile

Qingdao TTWY Manufacturing Co.,Ltd is a company specialized in producing casting equipment. It is located in Qingdao,a beautiful harbor city,which is convenient in transportation. Especially in graphite products, for expamle, the graphite electrode, graphite crucible, clay graphite crucible, Isostatic graphite crucible, etc;

With high quality,reasonable price and attentive service the products produced by TTWY have wined trust from clients at home and aboard.

 

FAQ

Q1: What information should I let you know if i want to get a quotation?

A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly supply us drawings).

The required more information, such as Surface Condition, Tolerance Request, The Quantity, and other mechanical and technical details.
     
If it is possible, please also provide the application of products, we will recommend the most suitable products with details for confirmation.
 
Q2: How do you gurantee the quality of the products?

A: Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.
 
Q3: Can you guarantee the prompt delivery?

A: Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.

Q4: What is your lead time? 

A : It usually needs about 15- 20 days after receiving the PO. 

Q5 : What is your payments terms?

A : T/T, L/C, Western Union, etc., could be acceptable.

Q6 : Can we visit your company?

A : Yes, for sure, It's my pleasure to visit our company.

Q7 : What is the shipping cost?

A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.

Q8 :What is the transportation way?

A:If the Gross Weight ≤45kg, it's better by express such as TNT, DHL, FedEx,, etc. 
If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.
If the Gross Weight ≥ 100kg ,you can choose by Air or Sea to the nearest port.

Q9 :How service you can offer your clients? 

A:We provide presales service in various forms, for example, making investment budget,manufacturing planning,etc.so that customer make a reasonable plan with less cost. Moreover,we will also provide after sale service ,for example,free training about machine applications ect.