Ceramic Sheath Tube

Professional production process

1. Raw material grading and screening
According to different material grades, high-purity alumina/mullite/zirconia powders with strict particle size distribution are selected and subjected to multiple impurity removal treatments to ensure the purity and stability of the raw materials.
2. Formula optimization and uniform mixing
Add high-performance ceramic additives according to the application characteristics of different materials, optimize the formula, improve the thermal shock resistance and molding performance of the product, and uniformly mix the raw materials through professional equipment to ensure the consistency of the performance of the ceramic sheath tube.

3. Precision Forming and Structural Forming
Adopting advanced extrusion molding and isostatic pressing technology, precise control of molding pressure and speed ensures uniform wall thickness and accurate size of the pipe body, achieving one-time molding of both ends open and one end closed structures. For the enhanced type, heat-resistant steel wire is embedded during the forming process.
4. Gradient low-temperature drying
Gradient drying treatment is applied to the formed ceramic billet to slowly remove internal moisture, strictly control the drying speed and temperature, avoid cracking and deformation of the billet due to rapid dehydration, and ensure the structural integrity of the billet.
5. High temperature sintering and densification
Send the dried billet to a professional high-temperature kiln for sintering, adjust the sintering temperature and insulation time according to different material characteristics (1400 ℃ -1700 ℃), and make the pipe structure fully dense.
6. Precision machining and dimensional calibration
Fine grinding and precision machining of the sintered tube body, calibration of outer diameter, inner diameter, and length dimensions, ensuring the surface smoothness and dimensional accuracy of the product, and meeting the assembly requirements of industrial equipment.
7. Full performance testing and airtightness inspection
Conduct 100% performance testing on each batch of products, including hardness, strength, thermal conductivity, and insulation performance testing; Conduct air tightness pressure tests to ensure that all products achieve absolute air tightness performance and eliminate unqualified products.
8. Classification packaging and anti damage protection
According to the size, structure and quantity of the products, shockproof foam and cardboard/wooden boxes are used for packaging, and the long pipe body is fixed with special brackets to avoid collision and damage during transportation, so as to ensure that the products are intact when the customer receives them.

advantage

1. Multiple material options
We provide three main ceramic sheath tube material systems: alumina (99.7% to 60% content), mullite, and zirconia, with a long-term working temperature range of 1200 ℃ to 1700 ℃. Customers can choose the most cost-effective materials based on the actual temperature, corrosion, and wear conditions of the work environment.
2. Ultra high temperature resistance and thermal shock resistance
The dense ceramic structure formed by high-temperature sintering can withstand extreme high temperatures for a long time and has strong thermal shock resistance. It can adapt to the rapid heating and cooling cycles of industrial equipment, without cracking or deformation, and has stable performance.
3. Absolute airtightness and strong corrosion resistance
All levels of products achieve 100% airtightness performance, which can effectively isolate the internal and external media of the pipe body. It can resist the corrosion of most acids, alkalis, and chemical media in the industrial field, and will not react with the substances in contact, ensuring the safe operation of internal components.
4. High hardness and excellent wear resistance
The Mohs hardness of high-purity alumina reaches 9, and zirconia material has ultra-high bending and compressive strength. The surface of the tube is smooth and can resist the wear of solid particles in the working environment, with a long service life and reduced replacement frequency.
5. Excellent electrical insulation performance
It has high volume resistivity and excellent dielectric strength, and can maintain stable insulation performance at high temperatures.

Material

Q1: Can you see the catalogue of your company?

A1: Yes, please email us, we will send it to you.

Q2: How to ensure the quality of the product?

A2: Use tabular alumina as an example. Before shipping, we will take pictures, take samples, and send them to the laboratory for physical testing. It is sent to third -party institutions for chemical testing to ensure product quality.

Q3: Can you provide free samples?

A3:Yes, we can provide it, please send us specific needs, we will choose the right product sample.