FAQ_Hunan Xirui Automation Equipment Co., Ltd

400-0731-682

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Specializing In The Design And Manufacturing Of

Ultra-high Temperature Industrial Electric Furnaces

Company News

Industry News

FAQ

Maximum temperature and application of large graphitization furnace

2021

Why is graphene difficult to disperse? How to solve it?

2020

How to solve the noise of graphite furnace? Causes and control measures

2020

Graphene properties and related concepts

2019

Installation conditions of graphitization furnace

Installation conditions of graphitization furnace-power 1. transformer capacity: transformer capacity shall be equipped according to the power of the equipment, and some margin shall be reserved; 2. Cable type: five-wire system (3 live wires +1 zero wire +1 ground wire) 3. Cross-sectional area: calculate current according to the power of the equipment, and then calculate the cross-sectional area of the cable 4. Material: BV or BVR multi-core flexible copper wire 5. Isolation switch: according to the power of the equipment, calculate the current and the size of the isolating switch. Note that domestic brands can only be used according to 70% of the quota current, while imported developed country brands can be used according to 90% of the quota current without leakage protection, otherwise they cannot be used.

2019

Polyimide film carbonization and graphitization

With the study of the carbonization process of polyimide film, it is found that the most drastic change of the polymer chain structure of polyimide is that before 650 ℃, the amidite ring breaks along the C- N bond and decarbonylation occurs first, forming benzene ring compounds with conjugated nitrile groups and isonitrile groups, and after 650 ℃, the heterocyclic ring is combined and the residual nitrogen and oxygen are removed to form continuous huge aromatic heterocyclic compounds, after the fused ring aromatization, the hexagonal carbon network layer of graphite-like structure is formed and gradually grows. When the heating temperature reaches 700 ℃, the (002) diffraction peak representing similar carbon hexagonal network is observed, and its diffraction intensity varies with the pyrolysis carbonization temperature.

2019

Necessity of Induction Heating in High Temperature Carbonization and High Temperature Graphitization Equipment of Carbon Fiber

With the rapid increase of social demand for carbon fiber, the current production and preparation capacity of carbon fiber can not keep up with the development, only rely on the expansion of production to solve this problem. Most of the existing production equipment uses resistance heating, especially the production line of 100 tons and above. From the perspective of equipment, the resistance heating method has low thermal efficiency, uneven heating, and unstable product performance, so that the production cost of carbon fiber is greatly increased. There are very few using medium frequency induction heating, there is also the problem of high energy consumption. In order to solve the above problems, we must start from the production process and equipment, and only from the perspective of equipment

2019

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Hunan Xirui Automation Equipment Co., Ltd

24-hour service hotline:+86-400-0731-682
Telephone:+86-0731-57803855
Fax: 0731-57803755
Technical Consultation: +86-19907326555 （Mr.Luo）

Business Contact: +86-13357327603 （Mr.Wu）

Mailbox:wyl@hnxirui.cn
Company QQ: 1033620781

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