Thermal cracking gas chromatography Analysis of core-shell acrylic resin by pyrolysis-gas chromatography/ mass spectrometry

1、

The mechanism and control methods of the thermal crack of mat foundation mass concrete and its constrution practice in this dissertation will not only provide experience to similar building, but also be used as a reference of theory study.

本文对筏板基础大体积混凝土温度裂缝产生机理及控制方法的总结和在具体工程的实践，为同类工程的施工提供了借鉴，也为进一步的理论研究提供了参考依据。

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2、

Thermal crack is the main form of the crack of mass concrete. To control the thermal crack, the simulation analysis on hydration heat of mass concrete and crack control during construction process become an important research subject.

温度裂缝是大体积混凝土裂缝的主要存在形式，为控制温度裂缝，对大体积混凝土在施工过程中的水化热进行仿真分析与裂纹控制就成为一个重要的研究课题。

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3、

The results are shown as follows: ( 1) The main reason for the failure of copper alloy mould is that it occurs within the scratch, the peeling and thermal crack.

研究结果表明：（1）造成铜套失效的主要原因为内部出现划痕、掉块及热裂纹。

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4、

It preliminarily builds up parameter system, analysis the affective degree of them with grey incidence theory, and explains the mechanism of thermal crack with the way of fracture dynamo.

初步建立了沥青路面低温缩裂的影响参数体系，并应用灰色关联理论进行了影响程度分析。

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5、

It researches the appearance of thermal crack appeared in the welding process of austenitic stainless steel ( X12CrNiSi1636), and puts forward some new techniques by which applied in production.

对X12CrNiSi1636奥氏体耐热不锈钢在焊接生产过程中极易产生热裂纹的现象进行了深入研究，提出采用变电流焊接、有效控制层间温度以及减小线能量进行焊接的新工艺。并成功应用于生产实践。

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6、

At present, the thermal crack is checked manually and the thermal damage procedure is hard to get, though the automatic testing technique has been employed in the thermal shock test.

模拟、自动试验技术在活塞热冲击可靠性的研究上已得到充分应用，但热裂纹的观测仍然依靠人工进行，因而不能及时、准确地获取裂纹扩展情况。

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7、

A series of technical measurements, such as design, material or construction to decrease temperature stress for the prevention of the thermal crack control of concrete are given.

在设计、材料和施工方面采取有效的措施，减小温度变化和由此产生的温度应力，防止混凝土温度裂缝的产生。

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8、

The process of impurity removing from fine silica powders with thermal crack method is investigated by means of DTA and XRD.

通过显微镜观察和X-射线衍射分析方法，研究用热爆裂法除去二氧化硅微粉中杂质的过程。

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9、

Control of the thermal crack of mass concrete is related to the rock, structure, the building material, and even the circumstance.

大体积混凝土基础的温度裂缝控制涉及到岩土、结构、建筑材料、施工、环境等多专业、多学科。

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10、

Simulation and Analysis of the Method of Reducing Thermal Crack at the Edge of Piston with Toroidal Combustion Chamber

收口型燃烧室边缘热裂纹缓解措施的研究

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11、

Computer simulation analysis model of thermal crack in multistory masonary buildings and study of crack-prevention measures

多层砌体房屋温度裂缝机理分析模型及防治对策计算机模拟分析

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12、

The effects of reaction temperature and S/ C on thermal crack of n-butane are investigated.

采用常压固定床管式反应器，考察了反应温度、水碳比等因素对正丁烷水蒸气重整中热裂解过程的影响。

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13、

This makes the thermal crack problem of the large-volume concrete more outstanding and common.

这使得工民用建筑中的大体积混凝土温度裂缝问题日益突出并成为具有相当普遍性的问题。

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14、

Initiation mechanism of thermal crack during solidification of EMC slab

电磁铸造大板坯凝固过程中热裂纹萌生机理分析

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15、

Effects of thermal crack of n-butane on steam reforming reaction

正丁烷水蒸气重整中热裂解的研究

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16、

Thermal crack and wear of train vehicle wheel

车轮的热烈和磨损机理与抗热裂耐磨车轮的研制

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17、

Thermal crack control of mass concrete foundations of UHV substation GIS equipments

特高压变电站GIS设备基础大体积混凝土温度裂缝控制

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18、

The research has indicated that we can control the concrete temperature to prevent the thermal crack.

研究表明，对水泥硬化过程中的温度进行控制，可有效防止裂缝的发生。

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19、

Control Measures of Thermal Crack for Construction of over Lenth Continuous Mass Concrete

大体积混凝土超长无缝施工温度裂缝控制措施

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20、

In this paper, we demonstrate the thermal crack formation and its working condition.

本文论述了热裂纹的形成与工作条件。

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