43results about How to "Fully degassed" patented technology

The invention discloses micro-alloying seamless pipeline steel and process for preparation. According to weight percentage, the range of the chemical components of the invention includes that C holds0.08% to 0.20%, Si is equal to or less than 0.04%, Mn takes 0.60% to 1. 50%, S is equal to or less than 0.015%, P is equal to or less than 0.025%, Al is equal to or less than 0.04%, Ti is equal to orless than 0.04%, H is equal to or less than 2.5*10-4%, O is equal to or less than 25*10-4%, the rest is Fe and unavoidable foreign matters. The process for preparation comprises technique steps, including smelting, refining, continuous casting, hot rolling and slow cooling. Round steel with the size of phi 70 to 150 millimeters can be produced by the process for preparation. The seamless pipelinesteel of the invention has perfect anti-sulphide stress corrosion (SSC resistance) capability and anti-HIC property. The pipeline steel which can substitute for welding pipe can be utilized in the filed of oil pipeline and the like, and the invention increases the reliability of material and adaptability of variety, in particular being adaptable for the low submarine temperature and corrosion-resistant environment and for manufacture of thick-walled tubes.

An oil tank for a hydraulic system is disclosed, the oil tank having a connecting line via which oil can be supplied to the oil tank and via which oil can be drained from the oil tank. In this case, a diverter plate is arranged in the oil tank in order to guide the oil supplied or discharged via the connecting lines in a defined manner.

An oil well cement bubble removing device comprises a shell. Two stirring and air exhausting systems are arranged in the shell. Each stirring and air exhausting system comprises a stirring tank, an installation frame, a motor, a vacuum pump, a stirring shaft, an upper stirring disk and a lower stirring disk. The motors and the vacuum pumps are arranged on the installation frames. The lower portion of one side of each stirring tank is provided with a cement inlet pipe connector, and the upper portion of the other side of each stirring tank is provided with a cement outlet pipe connector. The cement inlet pipe connector of one stirring and air exhausting system and the cement outlet pipe connector of the other stirring and air exhausting system both penetrate the side portions of the shell and extend out, and the other cement inlet pipe and the other cement outlet pipe are connected through a middle connecting pipe. The top of each stirring tank is provided with a tank cover. The top of each tank cover is provided with an air exhausting hole. The vacuum pumps are connected with the air exhausting hole through an air exhausting pipe. The oil well cement bubble removing device is simple in overall structure, the oil well cement bubble removing device is additionally arranged on the premise of not changing the original pipeline design, and the oil well cement bubble removing device is reliable in principle and capable of greatly lowering the bubble content in cement and achieves better effect after cement solidification.

The invention provides a passive degasser relating to a device for on line detaching gas in slurry lifted during oil exploration drilling, which is particularly suitable for the passive degasser. The passive degasser comprises a pot body, wherein the pot body is provided with a slurry inlet and a slurry outlet; the upper part of the pot body is the slurry inlet end; the lower end of the pot body is the slurry outlet end; and a slurry treatment body is arranged in the pot body. In the invention, the slurry treatment body is arranged to disperse and degas the slurry to be treated, and under a circumstance of having no power source drive, the slurry can be further diffused, that is fully dispersed, therefore, the degassing efficiency is effectively increased; and an airtight construction is arranged on the pot body to ensure that the slurry can be under an airtight condition in the whole degassing process of the degasser and all the gases collected by a sample air pump are the gases detached in treating the slurry in the pot body so as to provide guarantee for the accuracy of sample gas collecting data and for detecting the true gas content of a stratum.

The invention provides a resistor with a lead wire which is arranged inside a glass pipe of a mercury lamp, particularly relating to a resistor with a lead wire of which the gas generation quantity is still very low at the temperature of about 400 Celsius degrees when the mercury lamp starts and a manufacturing method thereof; the manufacturing method of the resistor with lead wire is characterized in that: a ceramic basal body(12) has the surface provided with a conduction film(13) and both ends embedded in an electrode cap(15) on which a lead wire(16) is welded, forming the resistor(11) with a lead wire; the resistor is heated to reach the temperature of between 350 and 500 DEG C and kept for form 40 minutes to 5 hours; the heating process of the resistor(11) with a lead wire is conducted in inert gases; the conduction film(13) on the resistor(11) with a lead wire is exposed to the outside.

The invention provides a honeycombed ceramic slurry water cooling vacuum refiner, comprising a slurry feed cylinder, slurry stirring shafts with helical blades, a vacuum chamber, a pumping hole, two kneading rollers, a photoelectric control device, a transmission mechanism, a hollow extruding shaft with helical blades, a slurry discharge cylinder, a fence which has section area close to and slightly smaller than the slurry feed cylinder, a cooling water device, a frame, a speed reducer and a variable-frequency motor, wherein the front end of the slurry stirring shafts with helical blades is provided with a slurry scraping knife. The slurry feed cylinder consists of two cylinders which are communicated, the section plane of the slurry feed cylinder is in a shape of a lying 8, and is communicated in the middle; the outlet end of the slurry feed cylinder is provided with the fence and the pumping port to form primary vacuum area; one slurry stirring shaft with the helical blade extends into each single cylinder, and is supported by a bearing with a seal ring; a bearing at the front end of the slurry stirring shaft is provided with a plurality of slurry scraping knives consisting of crossed blades; the fence is arranged at the outlet of the slurry feed cylinder; the upper end of the vacuum chamber is provided with the pumping port to ensure the vacuum chamber and the slurry discharge cylinder to form a secondary vacuum area; the lower part of the vacuum chamber is provided with two kneading rollers which are engaged with each other; the slurry outlet on the front part of the slurry discharge cylinder is a cone with narrowing opening.

The invention relates to the technical field of secondary aluminum, in particular to an aluminum alloy material and a preparation method thereof. The aluminum alloy material is prepared from waste aluminum and a component A in a weight ratio of 8: 1. In the waste aluminum, the iron content is less than 1.0 wt% of the total amount of the waste aluminum, the zinc content is less than 0.3 wt% of thetotal amount of the waste aluminum, the copper content is less than 0.3 wt% of the total amount of the waste aluminum, and the aluminum content is more than 80.0 wt% of the total amount of the waste aluminum. The component A comprises the following raw materials in percentage by weight: 0.2-0.6% of silicon, 0.45-0.9% of magnesium, 0.01-0.08% of manganese, 0.01-0. 08% of nickel, 0.01-0.08% of chromium, 0.005-0.01% of scandium, and the balance of aluminum and impurities, wherein the sum of impurities is less than or equal to 0.15%. Compared with the existing primary aluminum alloy, the aluminumalloy material has equivalent tensile strength, yield strength and glossiness, and is lower in production cost.