High Purity Alumina

Polycrystal Columns
  • Polycrystal Columns

Polycrystal Columns

  • High Purity Alumina

  • 445 ton

PRODUCT INQUIRY

Custom Polycrystal Columns sizes available upon request.

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Product Description Images & Video Service Our Advantage

Unit Weight: ≥ 50KGS

Density: ≥3.5g/cm3

Diameter: can be customized according to your need.

Height: can be customized according to your need.

purity≥99.999%


Compared with crystal by the Vernuil method and pellet, the poly-crystal alumina performances very well at below aspects

1. Purity: the sapphire poly-crystal alumina in the process of preparation is in a very clean environment. There is no any metal and atmosphere. That’s why the purity can be guaranteed.

2. Big Specific gravity: single sapphire poly-crystal product weight is more than 50KGs with density more than 3.5g/cm3. For the same crucible, more weight of sapphire crystal bar can be placed in. That’s advantage to grow large crystals.

This poly-crystal alumina has been melted by high temperature once and the bubbles in the semi-finished articles are very less. That makes the bubbles in finished crystal are less more and the finished crystal’s quality is much higher. Compared with the crystal by Vernuil sapphire growth method,2 inches of 300-700mm crystal bar can be made more by the same weight finished crystal,60KGs e.g, by using our Poly-crystal alumina. Obviously, that raises the output coefficient, reduces cost.


Specification
Item
HW204
Crystalline Phase
α-Al2O3
Appearance
Columnar Crystal
Lippm≤0.5
Nappm
≤1
Mgppm
≤0.2
Sippm
≤3
Pppm
≤0.2
Kppm
≤0.5
Cappm
≤1
Scppm
≤0.2
Tippm
≤0.2
Crppm
≤0.2
Feppm
≤2
Cuppm
≤0.5
Gappm
≤1
Sizemmcan be produced by crucible
Loose Densityg/cm3/
BET(Specific Surface Area)m2/g/
Sintered Densityg/cm3
3.5~3.7
ApplicationSapphire Crystal, Laser Crystal
Packingcan be customized according to your need


Polycrystal Columns

WE STRIVE HARD TO OFFER THE FIRST CLASS QUALITY PRODUCTS AND BEST POSSIBLE CUSTOMER SERVICE AND VALUEAND HAVE SET PERFORMANC E STANDARDS IN EVERY ASPECT OF OUR BUSINESS TO ENABLE OUR STAFF TO MEET ANDEXCEED YOUR NEEDS.

OUR SALES AND MARKETING TEAMS HAVE UNDERGONE EXTENSIVE TRAINING BY MANAGEMENT CONSULTANTS AND ARE CAPABLE IN  PROVIDING SOL UTIONS TO OUR CUSTOMER’S NEEDS.

MOREOVER OUR CUSTOMER SERVICE DEPARTMENT AND THE APPLICATION TECHNICAL TEAMS ALSO PROVIDE SUPPORT TO ENSURE THE PROMPT DE LIVERY OF ORDERS AND TECHNICAL ASSISTANCE.

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The bridge between the Chinese market and the foreign market


QingdaoHaiwei Emerging Materials Co., Ltd. is located in the beautiful port city –Qingdao,China.The company is formerly known as E&H International Business Co. Ltd, and inearly 2017 was reorganized to be Qingdao Haiwei Emerging Materials Co.,Ltd. Itis engaged in exporting deep processed alumina, fine aluminum hydroxide and itsrelated products, as well as importing metallurgy grade alumina and aluminum hydroxide as raw material of deep processed alumina products. The company'sproducts are widely used in various fields, including optical instrument, automobile manufacturing, paper industry, electronics industry, instrumentation, construction industry, petroleum refining and so on.

As a company with over 10 years-experience of export and import inalumina field, the company has accumulated a number of high-quality products suppliers and established a good solid relationship with them. These qualified suppliers play an important role in the company's development, by providing astable supply of goods and technical support for our new and oldcustomer.  Besides, we believe in that reliable logistics support is also aprerequisite for the development of foreign trade business. After more than 10 years of development, the company has rich experience in communication andcooperation with shipping companies and their agents, further ensuring thesmooth export of goods to the designated addresses of customers

Geographically Convenient Location

We are located in Qingdao, one of the most well- known import and export ports in China. Most of our factories are built in Shandong Inland. The transportation from our factory to Qingdao port takes only few hours by express way.

Having Experienced Staff

In the past decades, we are devoted ourselves in alumina field. We know segment market of every product,including their production, quality control, packing, usage and safe transportation.

Contact Us Today

We live on the details of order processing, including clear requirement of technology and specification, quality and cost control, inspection, document processing and safety logistics. Most of all, credibility and integrity is first and foremost and the base for our development.

You are welcome to browse our page to get details of our products.  Let us know what you are interested in and we’d love to provide you the best offer. We are looking forward to your enquiry. Contact us now.


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