Transparent Narrow Neck Quartz Glass Flask for Laboratory
SiO2 content is more than 99.9%, transparent quartz glass tube can reaches above 99.95%.
2. Temperature :
Softening point temperature is about 1730 degrees Celsius ,1250 degrees Celsius in a long time used ,short-time maximum use temperature is up to 1450 degrees Celsius.
Quartz glass is acidic materials, except hydrofluoric acid and 300 degrees Celsius thermal phosphoric acid, on any other acids were shown to be inert, is the best anti acid materials. At room temperature, alkali and salt on quartz glass corrosion degree is minimal.
Transparent Narrow Neck Quartz Glass Flask for Laboratory is a new type high purity and high temperature-proof quartz glass material, the strong points are:
1.low thermal conductivity,
2.small expansion coefficient,
3.high temperature proof,
4.excellent thermo stability and cost lowerthan other quartz glass.
5.It has been widely used as long nozzle and immersion nozzlebrick for the continuously flood steel,
6.flood gate brick and flood gate brickand flood channel for the float glass production, material bowl and material tubefor the ware glass kiln,
7.crucible for melting special glass, quartz glassceramics rollers for the horizontal glass toughened furnace, oxygen furnace brickfor aluminium production in the field of metallurgy,
8.chemical industry, buildingmaterial, national defense and science research
Donghai jiexu trading co., LTD is located in China quartz production base.We are a professional quartz manufacturer. Set design, development, manufacturing as one of the professional manufacturers.We focus on a range of quartz products, Variety, reasonable price, delivery on time.
Packing & Delivery
Our most professional packaging
Transport of large trucks to the seaport
And international transport cooperation
1. Timely response, Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions. 2.Sample evaluation Provide sample and trial order are accepted for the quality evaluation. 3. Strict quality control Arrange production on time and control quality strictly. 4. Short delivery time Book the earliest vessel or plane to guarantee the delivery time. 5. Professional and complete shipping documents Provide all the detailed news and pictures from order to delivery; Offer relative export documents and original certificate if needed; 6. Warm and considerable after-sale service
Q1. Can I have a sample order for quartz products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for Quartz product order?
A: Low MOQ, 100pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for Quartz Products?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on Quartz product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.
Q8: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less
Secondly, during the guarantee period, we will send new lights with new order for small quantity. For
defective batch products, we will repair them and resend them to you or we can discuss the solution i