Also discussed is the inevitability of the said J55 casing perforation cracking on the basis of result from research concerning perforation safe toughness.
同时还应用射孔安全韧性判据的研究成果，论证了该J55套管射孔开裂的必然性。
Based on the experiments, the mathematical model of pull-out toughness and buried depth of steel fibers after cracking of matrix is developed in this paper.
本文以实验为基础，建立了砂浆基体裂后钢纤维拔出韧性与纤维埋深的数学模型。
By changing the nolch local ion of Charpy impact test specimens studied the effect of nolch location on toughness and cracking process in multi-layer welds.
通过改变焊缝夏比冲击试样的缺口取向，研究了缺口位向对多层焊缝金属韧性及断裂过程的影响。
To use the drop-weight impact meter to measure the impact toughness of the asphalt mixture, put forward the use of the impact toughness as an index to evaluate the anti-reflective cracking ability.
利用落锤式抗压冲击仪测定沥青混合料的冲击韧性，采用冲击韧性这一指标评价大粒径沥青混合料的抵抗反射裂缝能力。
With good toughness and resistance to thermal cracking, they are used in 1-4 stands for high speed rolling.
具有良好的韧性和抗热裂纹能力，用于精轧机组第1 - 4架的高速轧制。
According to the relation of fracture toughness and stress intensity factor, the cracking similarity condition of induced joint in structural model is established.
根据断裂韧度和应力强度因子的关系，建立了结构模型中诱导缝的开裂相似条件。
A clay sealant is introduced which has many advantages, such as low viscosity, room temperature curing, no cracking, good toughness.
介绍了一种黏度低、室温固化、不开裂、韧性好的密封胶泥。
The use of polypropylene fiber in concrete of the bridge deck paving can improve its tensile strength, bending strength, permeability strength, impact ductility, cracking resistance and toughness.
在桥面铺装层混凝土中掺用聚丙烯纤维能够增强其抗拉、抗折、抗渗、抗冲击能力，并起到阻裂增韧的作用。
With increasing corrosion time the impact toughness of high Mn steel obviously decreased. The major mechanism was effect of the caustic embrittlement cracking.
随着热强碱腐蚀时间的延长，高锰钢的冲击韧度明显降低，碱脆开裂是造成高锰钢冲击韧度下降的主要原因。
The proper interpass temperature is required to prevent cold and hot cracking as well as the proper selection of welding filler material, to produce the proper creep resistance and toughness.
需要适当的程间温度和正确选择填充金属材料来防止冷热裂缝，产生适当的蠕变阻力和韧性。
A higher distortion temperature, elongation and fracture toughness, effectively preventing the production and use of products in the cracking, a fast curing the characteristics.
具有较高的热变形温度、断裂延伸率和冲击韧性，有效防止了制品在生产和使用中的开裂，同时具有固化快的特点。
It is effective to supply moisture, improve hair toughness, reduce the furcal and cracking phenomena and straighten hair.
有效补充秀发水分，增强发丝韧性，减少开叉、断裂现象，令秀发垂直柔顺。
The Ni-based transition alloy had a function of dispersion strengthening, and ahvanced the toughness, reduced the trend of cracking.
镍基过渡合金既起到弥散强化作用，又能提高其韧性，减少裂纹产生。
High binder content, good toughness and thermal cracking resistance. Used in the stands of prefinish rolling. Suitable for hot rolling thread steel.
粘结剂含量高，具有优良的韧性和抗热烈纹能力，适用于预精轧机架和热轧螺纹钢。
The high Mn steel caustic embrittlement cracking was distinct in corrosion. With increasing corrosion time the impact toughness of high Mn steel obviously decreased.
随着热强碱腐蚀时间的延长，高锰钢的冲击韧度明显降低，碱脆开裂是造成高锰钢冲击韧度下降的主要原因。
Good toughness and thermal cracking resistance. Used in the stands of prefinish rolling. Suitable for hot rolling thread steel.
具有优良的韧性和抗热烈纹能力，适用于预精轧机架和热轧螺纹钢。
Good toughness and thermal cracking resistance. Used in the stands of prefinish rolling. Suitable for hot rolling thread steel.
具有优良的韧性和抗热烈纹能力，适用于预精轧机架和热轧螺纹钢。
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