泵杆

Colfax Corporation, which specializes in critical fluid-handling products and technologies, responded, with a portfolio of pump technologies that delivered the reliability and durability required for operation in some of the most remote oil fields in the world, and provided the company with a complete engineered system of two-screw and progressing cavity pumps operating in series.

科尔法石油公司，专业的流体设备制造商，旗下的泵产品具有耐用性和可靠性，可应用于全球偏远地区的油气田，自带双螺杆操作系统和螺杆抽油泵操作系统。

In operation, the screw cylindrical surface and the pump cylinder wall formed between the layer of oil film to prevent direct contact between the metal, so that screw tooth surface wear significantly reduced.

在运行中，螺杆外圆表面和泵缸内壁之间形成的一层油膜，可防止金属之间的直接接触，使螺杆齿面的磨损大大减少。

With the model, torque change in both the pump and pumping rod along the wellbore could be obtained.

利用该模型可获得井筒中任意部位及螺杆泵处抽油杆扭矩的变化情况。

Set my factory product development, manufacturing and sale of products and services in one, through the introduction, absorption, development, innovation, use of professional and technical production of self-drilling hollow grouting anchor series products and dedicated supporting machinery (latent air drilling, rock drill , grouting machines, jet injection pump, bolt, etc.) are widely used in underground engineering (transport tunnels, hydraulic tunnels, mines and various uses of roadway anchor bolting) geotechnical engineering (slope, rock embankment , deep foundation pit of the anchor) to repair reinforcement works (tunnels, sea walls, dams, housing construction).

我厂集产品开发，生产制造及产品销售与服务于一体，通过引进，吸收，开发，创新，采用专业技术生产的自钻式中空注浆锚杆系列产品及专用配套机械(潜空钻，凿岩机，注浆机，喷射机，注浆泵，锚杆机等)广泛应用于地下工程（交通隧道，水工隧道，矿山巷道和各类用途的锚固支护）岩土工程（边坡，堤岩，深基坑的锚固支护）修复加固工程（隧道，海堤，大坝，房屋建筑）。

Also the company's new products solid flowmeter, twin-screw compressors, G-type single screw pump, and so on in the trial had been completed, and of mass production capacity.

另外我公司的新产品固体流量计、双螺杆压缩机、G型单螺杆泵等均已完成中试，并形成批量生产能力。

In Beijing Shijingshan, is a new technology research and development, promotion and consulting-based private high-tech enterprises, the company's main products are environmentally-friendly coal slurry boiler, solid flow meter, twin-screw compression And a single screw pump and other G-type.

北京宇明洋高新技术有限公司位于北京市石景山，是一家以新技术的研发、推广和咨询为主的民营高新技术企业，公司的主导产品有水煤浆环保锅炉、固体流量计、双螺杆压缩机和G型单螺杆泵等。

With regard to the question how to cut the helical camber of screw-pump and spiral rod drilling tool in the field of petroleum machine and chemical machine, this paper firstly puts forward the cutting method how to apply the milling with non-instantaneous-pole envelope principle with plate milling cutter in our country.

本论文针对石油、化工机械领域螺杆泵、螺杆钻具转子的螺旋曲面切削加工问题，在国内首次提出了应用盘铣刀的无瞬心包络铣削加工方法。

One single-screw pump can be used many different viscosity transmission medium

单螺杆泵一泵多用可以输送不同粘度的介质

Single screw pump flow and pump speed is proportional to, which has a good regulatory variables

单螺杆泵流量与泵的转速成正比，因而具有良好的变量调节性

Main production gear pumps, screw pump, pump, high viscosity rotor pump.

主营生产齿轮泵、螺杆泵、离心泵、高粘度转子泵。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。