查询词典 pipe-rack

Normative references GB 150 steel pressure vessel GB 152.1 ~ 152.4 fastener hole and Shen Kong GB 196 common Cast Gate Valves thread of basic dimensions (diameter l ~ 600mm) GB 197 common thread of tolerance and fit (diameter of 1 ~ 355mm) GB 798 live bolt GB 897 stud bm = ld GB 898 stud bm = 1.25d GB 901 Class B and other long stud GB 5782 Hexagon head bolts A and B class GB 5796.1 ~ 5796.4 Cl 150, 300, 600 Lb Cast Steel Gate Valves trapezoidal thread GB 6175 2 Hexagon nut A and B class GB 9112 types of steel pipe flanges GB 9113.1 ~ 9113.26 Integral steel pipe flanges GB 12220 Universal Valve Logo GB 12221 length of the Cl 900, 1500 Lb Cast Steel Gate Valves valve structure of metal flange GB 12222 Multi-turn valve actuator attachment GB 12224 General requirements for steel valves GB l2228 General Valve carbon steel forgings GB 12229 Universal Valve carbon steel castings GB 12230 Universal Valve austenitic steel castings GB / T 12252 General requirements valve supplier ZB Jl6 006 test and test valve

引用标准 GB 150 钢制压力容器 GB 152.1～152.4 紧固件通孔及沉孔 GB 196 普通螺纹基本尺寸(直径l～600mm) GB 197 普通螺纹公差与配合(直径1～355mm) GB 798 活节螺栓 GB 897 双头螺柱bm＝ld GB 898 双头螺柱bm＝1.25d GB 901 等长双头螺柱 B级 GB 5782 六角头螺栓 A和B级 GB 5796.1～5796.4 梯形螺纹 GB 6175 2型六角螺母 A和B级 GB 9112 钢制管法兰类型 GB 9113.1～9113.26 整体钢制管法兰 GB 12220 通用阀门标志 GB 12221 法兰连接金属阀门结构长度 GB 12222 多回转阀门驱动装置的连接 GB 12224 钢制阀门一般要求 GB l2228 通用阀门碳素钢锻件技术条件 GB 12229 通用阀门碳素钢铸件技术条件 GB 12230 通用阀门奥氏体钢铸件技术条件 GB/T 12252 通用阀门供货要求 ZB Jl6 006 阀门的试验与检验

Is a large domestic alloy and large-diameter steel pipe specifications special high-strength carbon steel pipe production, storage providers, companies have modern production in Tianjin Spot factories and storage base, a representative office in Beijing.

天津斯曼特钢管有限公司是国内一家大型合金钢管材和大口径特殊规格高强度碳钢管材的生产、仓储供应商，公司在天津设有现代化生产工厂和现货仓储基地，在北京设有代表处。

To adopt band type rail rolled by stainless steel and chain type drive method run circumferential movement along with the pipe to be cut by flame cutting carriage,cutting torch will run radial movement driven by ball bearing screw by step motor along with the pipe to be cut,the above two dimension movement compose to inclined cutting movement of cutting torch,the inspection of circumference position of cutting torch,the determination of radial position and return point of cutting torch all controlled by SCM.

为了满足钢管斜截切割的要求，建立了钢管斜截切割的数学表达式，采用不锈钢轧制的带形轨道和链式传动的方式使火焰切割小车沿被切钢管做周向运动，割炬沿被切钢管的轴向运动由步进电动机带动滚珠丝杠完成，上述两维运动合成为割炬的斜切运动，割炬周向位置的检测、割炬轴向位置及折返点的确定均由单片机控制完成。

Enterprise specializing in pumps, valves, pipes, pipe fittings, corrosion-resistant equipment, mechanical equipment, steel-lined plastic·úmaterials and various types of product development, design, production and sales of main products have fluoroplastics pump, steel-lined PTFE pump , liquid pumps, self-priming pump, magnetic pump, centrifugal pump, stainless steel pump, fluorine plastic lined plug valves, butterfly valve, ball valve, valve, check valve, valve, gate valve, pipe fittings and steel equipment ten Level of stress, some more than 1120 kinds of model specifications.

企业专门从事水泵、阀门、管道、管件、防腐设备、机械设备、钢衬氟塑料及全塑各类产品的研发、设计、生产和销售，主要产品有氟塑料泵、钢衬四氟泵、液下泵、自吸泵、磁力泵、离心泵、不锈钢泵，氟塑料衬里旋塞阀、蝶阀、球阀、截止阀、止回阀、隔膜阀、闸阀、管道件及钢塑设备十个压力等级，约1120多种型号、规格。

Our company is production and sales of professional pipe fitting manufacturers, is a professional manufacturer of carbon steel, alloy steel pipe fittings professional production enterprises.

我公司是生产销售管件的专业厂家，是一家专业生产碳钢、合金钢管件专业生产企业。

My company is production and sales of professional pipe fittings manufacturers, is a professional manufacturer of carbon steel, alloy steel pipe fittings professional production enterprises.

我公司是生产销售管件的专业厂家，是一家专业生产碳钢、合金钢管件专业生产企业。

In order to understand the operation safety and pipe service life span of rear superhearter, the essay established dynamic mathematic model of single piece of screen of rear superhearter, including the following sub-models: flue gas side model, steam side and metal pipe wall mathematic model, flow calculation model and wall temperature calculation model.

为了更好地了解后屏过热器运行的安全性和管子使用寿命，本文建立了后屏过热器中单独一片屏的动态数学模型，其中包括以下几个子模型：烟气侧模型、蒸汽侧和金属管壁的数学模型、流量计算模型和壁温计算模型。

13 Safety valve should also be installed to the steam side of the heater to avoid the excessive pressure caused by the pipe rupture. 10% of peak load water flow should be passed, or the discharge flow of one pipe and two ruptures should be passed. The maximum of the two should be selected and sufficient

5.1.13加热器汽侧也应设置安全阀，防止由于管子破裂而造成超压，其最小容量应能通过最大负荷给水流量的10%或一根管与两个断口排放的流量，两者取最大值并留有足够的安全裕量。

Produces each kind of specification to shift gears the flexible axle, changes speed the flexible axle, the flexible axle controller, the controller unit, the hydraulic pressure drill tubing, the petroleum pipe line, the high-pressure oil pipe, checks the cotton thread, shifts gears the line, in the flexible axle the core, the steel wire, in executes the blockade to use the steel wire, the steel cable to lock steam Morocco and the engineering machinery spare part and the fitting and so on core steel wire, according to customer concrete demand and request processing and production!

生产各种规格换挡软轴，变速软轴，软轴控制器，控制器总成，液压油管，输油管，高压油管，刹车线，换档线，软轴内芯，钢丝绳，施封锁用钢丝绳，钢缆锁内芯钢丝绳等汽摩和工程机械零部件和配件，按客户具体需求和要求加工和生产！

The thermal boundary condition of the cast iron cooling stave with surface alloyed steel pipe was used for numerical simulation of temperature field and commercial software ANSYS and the method of coupling heat-structure were used to calculate thermal deformation of steel pipe at high temperature,and analyze the influence of air gap and thermal deformation on the life of cooling stave.The optimal size of air gap and hot load to guarantee long life of cast iron cooling stave were obtained.

根据合金化管铸铁冷却壁热态试验数据确定了合金化管铸铁冷却壁温度场数值模拟的边界条件，利用ANSYS软件、采用热-结构耦合的方法计算了高温状态下合金化管铸铁冷却壁内钢质冷却水管的变形，分析了气隙层和水管热变形对合金化管铸铁冷却壁寿命的影响，得出保证合金化管铸铁冷却壁长寿的最佳气隙层厚度和相应的最佳使用热负荷。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷