In this paper, the traditional HAZ grain growth model is analyzed. Based on the model, analytical model of austenite grain growth fit to high strength pipe-steel is introduced.
分析了传统的焊接热影响区（HAZ）晶粒长大模型，在此基础上，介绍了适用于高强度管线钢的奥氏体晶粒长大的耦合模型。
In order to improve on the properties of drilling pipe and its competitive price, a research on design and manufacturing high strength pipe is done based on a cooperation between DUT and Bao Steel.
为提高国产钻杆的市场竞争力，改善其使用性能，我们与宝钢合作，开展了《高强度钻杆的开发》这一国家级课题。
Basically, those steel pipe materials which, with adequately high strength, show sufficient toughness, good welding behaviour and resistance to corrosive media are in demand.
基本上，这些需求的钢管材料，都具有足够大的强度，韧性，良好的焊接能力以及耐腐蚀介质。
In the process of using high strength steel to produce spirally welded pipe, the yield strength is reduced due to Bauschinger's effect.
采用高强度级别钢种的卷板制造螺旋焊管的过程中，包申格效应使钢管屈服强度降低的现象日益突出。
Equipped with the steel water tank which is of high strength baking finish, stainless steel plunger (SUS304) and pressure pipe with two moveable ends.
配置有高强度烤漆钢板水箱，SUS304不锈钢活塞杆及双头均可活动的高压管。
Among oil well drilling equipment and tooling, the high - strength drill pipe plays a very critical role.
高强度石油钻杆在钻井设备和工具中占有十分重要的地位。
Preparation of high strength concrete with stone sand (stone screenings) and the application of the stone sand in the PHC pipe pile production are presented.
介绍了用人工砂(包括石屑)试配高强混凝土以及人工砂在预应力高强混凝土管桩生产中应用的情况。
For the RCC high dam embedding high strength polyethylene cooling water pipe is studied.
对RCC高坝埋设高强度聚乙烯冷却水管技术进行了研究。
This pipe material has high strength and its welding process is complicated.
这种管材强度高、焊接工艺复杂。
The strengthening pipe is light in weight, high in strength, protective for environment, and beautiful in appearance.
本实用新型是一种重量较轻、强度较高且环保、美观的加强管材。
A taper pipe porous element can be once integrally manufactured by adopting the mould, and the porous taper pipe has high strength and good air permeability performance.
采用本实用新型的模具可以一次性整体制得锥管多孔元件，并且多孔锥管强度高，透气性能好。
This paper analyzes the present situation of pile foundation construction technology in Hengyang, introduces the application condition of prestressed high strength concrete pipe pile.
该文分析了衡阳地区桩基础施工工艺现状，介绍了预应力高强混凝土管桩应用条件。
High Strength bolts: all kinds of grade 10.9 and 12.9 high strength hex and hex socket screws, bolts, sleeves, pipe plugs, shoulder screws, stainless steel hex socket bolts, set screws.
高强度螺栓类：库存各种规格的10.9级、12.9级高强度内外六角螺丝、螺栓、套筒、喉塞、塞打、不锈钢内六角螺栓、刀把螺丝、机米。
The titanium ring pipe with uniform wall thickness, high-voltage-resistance and equal strength was obtained using the above mentioned parameters, detected by the orthogonal test.
通过正交试验方法验证得到：在上述参数条件下可以获得壁厚均匀、耐高压、等强度的钛合金环形管。
The bearing capacity of the high-strength prestressed concrete pipe pile was presented in this paper, which provided the theoretical basis for the design of pipe pile.
介绍了高强预应力混凝土管桩承载力的计算方法，为管桩的设计提供了计算依据。
The compound pipe is a kind of decorative material with luxurious appearance, high strength and reasonable price.
复合管是一种外观豪华，强度高．价格适中的装饰材料。
Trial use shows that the nano antibacterial PP-R composite pipe of the invention has the advantages of high strength, small coefficient of inertia expansion and remarkable antibacterial effect.
本发明的纳米抗菌PP-R复合管，经试用显示了强度高、线胀系数小，具有明显的抗菌效果的优点。
The invention relates to a manufacture method for manufacturing a cantilever steel pipe with high strength and high toughness by using a hot-rolling coiled plate.
本发明涉及一种用热轧卷板制造高强韧性吊臂钢管的制造方法。
The characteristic and its production process flow of high strength welded pipe are introduced.
介绍了强力焊管的特点及其生产工艺流程。
The pipe has light weight, high strength and quick heat transfer, and is superior to the prior structural copper pipe in economic benefit, service life and the like.
该管重量轻、强度高、传热快，无论从经济效益、 还是使用寿命等方面均优于传统结构铜管。
High strength prestressed heat barrier pipe is used as a thermal insulating pipe to carry high temperature and pressure vapour into underground for crude oil exploitation.
材质为高强钢的预应力隔热管是在石油开采中用于地下输送高温高压水蒸汽的绝热管。
The pass design method of high strength welded pipe is also explained with examples.
举例说明了强力焊管孔型设计方法。
The corrugated pipe has the advantages of uneasy leakage, good security and high strength.
本实用新型不易泄漏安全性好、强度高。
A mounting hole for arranging the high strength friction grip bolt is arranged at the top of the rectangle steel pipe column.
所述的矩形钢管柱的上部开有用于安装高强螺栓的安装孔。
A mounting hole for arranging the high strength friction grip bolt is arranged at the top of the rectangle steel pipe column.
所述的矩形钢管柱的上部开有用于安装高强螺栓的安装孔。
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