thermo-chemical treatment

Rare Earth Thermo-chemical Treatment and Rare Earth Material Surface Modification

稀土化学热处理与稀土材料表面改性

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Thermal and thermo oxidative degradation of polystyrene modified with ammonium polyphosphate, ammonium sulfate and zeolite Y was studied during the compounding process and the thermal treatment, based on molar mass and its distribution.

基于体积排除色谱实验结果，详细分析了聚磷酸铵、硫酸铵、合成分子筛Y改性的聚苯乙烯在塑化混合过程和热降解过程中分子量及其分布的变化规律。

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The paper introduces the possible tax preference policy in waste water treatment, self-provided thermo-electricity, forestry company, instalment construction management, additional investment and borrowed capital and puts forward some tax saving strategies for the enterprises.

针对造纸企业在污水处理、自备热电、林业公司、分期建设经营、追加投资、借入资金这六个方面可能享受的税收优惠政策进行了分析介绍，为企业提出了一些节税策略。

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Thermo-chemical Treatment with Pure Heat Diffusion Penetration will be Replaced by Other Types of Energy Aided Diffusion Penetration in the 21~ ( st) Century

21世纪化学热处理将由其它能助扩渗代替纯热扩渗

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This paper briefly introduces the function of RE elements during the thermo-chemical treatment, and emphatically analyzes catalysis and diffusion mechanism of RE elements from the basic process of the thermo-chemical treatment.

从化学热处理的基本过程入手，简要介绍了稀土在化学热处理中的作用，着重分析了稀土元素的活化催渗和扩散机理。

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