36results about How to "Control splash" patented technology

A supercharger for an internal combustion engine having an internal reservoir adapted to receive a supply of lubricating oil. An oil slinger is mounted on the impeller shaft for rotation therewith that extends into the reservoir for collecting and slinging lubricating oil onto the supercharger bearings, shafts and the drive and impeller gears. A baffle assembly is carried by the interior of the supercharger housing for controlling the volume and flow of lubricating oil onto said gears and bearings and directing oil flow therefrom back into said reservoir to prevent excessive lubrication buildup on the gears and the deleterious effects that result therefrom.

A plasma arc technology based digital multifunctional power supply comprises a plasma arc welding power supply, wherein the plasma arc welding power supply comprises a rack, and a separating plate which is arranged in the rack; the separating plate is divided into an upper separating plate layer and a lower separating plate layer; the inner part of the plasma arc welding power supply is divided into a power supply control assembly, a welding output control assembly and a display operation assembly. The plasma arc technology based digital multifunctional power supply is stable in structure, andreasonable in space utilization; a workpiece is arranged between a plasma welding gun and an argon arc welding gun; the electric arc of argon arc welding and plasma welding can be changed; welding wires are heated and smelted through plasma arc and argon arc during being welded, and molten melt droplets are formed and enter a molten melt smelting pool on the workpiece, so that the welding smelting depth and the welding speed can be greatly increased, and the splashing is controlled; a main control board for controlling realizes power supply control; and the plasma arc technology based digitalmultifunctional power supply has the characteristics of being high in efficiency, small in loss, and wide in applicable scope.

The present invention relates to the field of metal alloy test rod production, and provides a metal alloy test rod preparation method. According to the method, a vacuum suction casting device is adopted, wherein a vacuum chamber is filled with high purity argon to achieve pressure P1 of 0.02-0.06 MPa; when a button ingot surface layer is completely melted and a through hole on the bottom of an alloy ingot crucible is sealed through a liquid sealing manner, the vacuum chamber is continuously filled with high purity argon to increase pressure to P2, wherein pressure difference between the P2 and the P1 is 0.01-0.1 MPa; and pressure difference suction casting molding is adopted. The preparation method has the following characteristics that: high cleaning and high efficiency are provided; high uniformity and high accuracy of the components can be achieved; a size of the test rod can be phi 12 mm*120 mm; disadvantages of uniform component, difficult oxygen content control, long period or complex process, and the like of powder metallurgy, mold melting casting, extrusion molding, ingot processing and other test rod preparation methods are overcome; and strict requirements on the ideal alloy test rod by standard sample preparation, alloy design, performance testing, material feeding rod preparation and other processes can be met.

The invention discloses a method for controlling splashing in the less slag smelting decarbonization period of a converter. The technical problem that splashing is likely to happen in the decarbonization period of the double slag and remaining slag smelting technology of a converter in the prior art is mainly solved. The method for controlling splashing in the less slag smelting decarbonization period of the converter comprises the following steps of steel scrap adding, molten iron charging, converter blowing desilicication and dephosphorization, pre-slag pouring, converter blowing decarbonization, converter tapping and slag remaining. By means of control over adding of limestone or dolomite in the converter blowing decarbonization period, the oxygen supply strength is controlled to be increased step by step during lance feeding blowing, and the problems of explosive splashing during lance feeding blowing and returning dry splashing in the blowing process in the decarbonization period are well controlled through adjustment on the lance height and the oxygen supply strength in the blowing process.

The present invention provides a clutch manipulation assist device, which includes a clutch assist actuator, the actuator is arranged at a position where it is possible to suppress the influence of heat from an engine on the actuator without requiring the heat insulation structure or the like. The clutch manipulation assist device includes a clutch mechanism (61) which is arranged in a power transmission path for transmitting a rotational driving force of an engine (17) to a wheel, a clutch-manipulation mechanism in which a clutch manipulation force is inputted, and an actuator (73) which generates a clutch assist force in response to a manipulation of the clutch manipulation mechanism, the actuator is arranged in front of the engine (17) and outside a main frame (8).

The invention discloses a waste gas treatment system for detecting heavy metals in food. The system comprises a waste gas cavity, wherein an adsorption chamber is formed in the upper part of the waste gas cavity, the bottom of the waste gas cavity is connected with a reaction ball chamber, a plurality of calcium oxide adsorption layers are arranged in the adsorption chamber, each calcium oxide adsorption layer comprises a fiber skeleton and calcium oxide applied to the fiber skeleton, and the fiber skeletons are wound into a spiral line structure by a fiber bundle; a conical chamber is formed in the lower part of the waste gas cavity, and the bottom tip end of the conical chamber is in sealed communication with the reaction ball chamber; the system further comprises an air circulation device which comprises a pipe, one end of the pipe is communicated with the upper part of the adsorption chamber, the other end extends into the reaction ball chamber, an air pump is arranged on the pipe, and the pipe is further connected with a first branch pipe and a second branch pipe. Adsorption and digestion are performed in a closed environment in a fully sealed form, so that the waste gas cannot leak, and little harm is caused to the environment and human bodies. The reaction digestion condition can be clearly observed through the waste gas chamber and the reaction ball chamber which are made of transparent glass.

The invention relates to an oxygen converter steelmaking method. The process system of the method comprises: a loading system: 90-94% by weight of molten iron and 6-10% by weight of steel scrap are quantitatively loaded; an oxygen supply system: the lance position (H / mm) of an oxygen lance is 1100-1800mm far from a metal level; a slagging system: the added slagging material comprises 14-17% by weight of limestones, 28-34% by weight of lime, 21-25% by weight of unfired dolomite, 14-17% by weight of sludge balls and 14-17% by weight of iron ores by virtue of a single-slag operation; a temperature system: a tapping temperature Ttapping=Tliquid phase+deltaTdegree of superheat+deltaTprocess, wherein Ttapping is the tapping temperature, Tliquid phae is a liquid phase line temperature, deltaTdegree of superheat is a degree of superheat, and deltaTprocess is a process temperature drop from tapping to starting pouring; and a terminal point system: the steel comprises terminal point chemical components in percentages by mass: 0.06-0.20% of C, 0.05-0.35% of Mn, less than or equal to 0.035% of P, less than or equal to 0.035% of S and the balance of Fe and trace elements.

A method for repairing and remanufacturing the surface of a buffer rod of a locomotive, the steps of which are as follows: S1, screening out repairable buffer rods to be repaired; S2, inspecting the wear amount of the buffer rod to be repaired, respectively in the shaft sections of the buffer rods with different radii, Determine the area to be repaired according to the size of the wear amount, and process the groove to be repaired in the area to be repaired; S3, perform sandblasting, cleaning and preheating treatment on the buffer bar to be repaired in sequence; S4, fix one end of the buffer bar to be repaired on the variable On the positioner, continuous annular welding is performed on the groove to be repaired by the CMT automatic welding system to complete the repair of the buffer bar to be repaired; S5, post-weld slow cooling treatment is performed on the repair buffer bar obtained in step S4; S6, the repair area of ​​the repair buffer bar is Machined to original drawing size and then sandblasted as a whole. The method of the invention has low cost, high efficiency and high repairing quality, and the quality standard of new parts can be reached after repairing and remanufacturing through the method of the invention.

The present invention provides a clutch manipulation assist device, which includes a clutch assist actuator, the actuator is arranged at a position where it is possible to suppress the influence of heat from an engine on the actuator without requiring the heat insulation structure or the like. The clutch manipulation assist device includes a clutch mechanism (61) which is arranged in a power transmission path for transmitting a rotational driving force of an engine (17) to a wheel, a clutch-manipulation mechanism in which a clutch manipulation force is inputted, and an actuator (73) which generates a clutch assist force in response to a manipulation of the clutch manipulation mechanism, the actuator is arranged in front of the engine (17) and outside a main frame (8).

A tube for pouring liquid metal has a pouring channel with a pouring axis. The tube has a downstream part with a pouring channel with an outlet diameter, and a flared upstream part with a length known as the threshold distance. The threshold distance is greater than four times the outlet diameter. The upstream part is flared and configured so that its upper end has a convex overall shape in the axial direction. The upstream part is included within a first volume corresponding to the complementary part of an axisymmetric frustoconical volume having as its axis the pouring axis. The generatrix of the volume forms an angle greater than 5 degrees with the pouring axis. The upstream part is included within a second volume, delimited by a surface of revolution generated by an isosceles trapezium revolving about the pouring axis.

The invention discloses a converter return molten steel processing method. The converter return molten steel processing method comprises the following steps that (1) return molten steel is deoxidized and then smelted through a converter, a whole ladle of molten steel is completely added into the converter to be processed, if the charging amount of the molten steel is not enough, molten iron is added into the steel ladle till reaching the preset amount, and then the molten steel and the molten iron are added into the converter; (2) a blow gun is started at 1500-1650 mm, the initial oxygen pressure while blowing is started is controlled to be 0.30-0.35 Mpa, after the gun position is constant at 1500-1650 mm, the oxygen pressure is increased to 0.80-0.85 Mpa at the speed of 0.015-0.020 Mpa / s, and in the pressure increasing process, after the oxygen pressure is increased to 0.5 Mpa, 15-20 kg / t of lime, 5-8 kg / t of dolomite and 0-13 kg / t of sintered ore are added; (3) after blowing is conducted for 1-2 min, the oxygen gun position is declined to 1300-1400 mm; (4) TSC is measured through a sublance after blowing is conducted for 3-4 min, and the oxygen blowing amount and the adding amount of the sintered ore are dynamically controlled according to TSC measuring data; and (5) after a target component of the molten steel is obtained through blowing, the gun is lifted, and tapping is conducted. The converter return molten steel processing method is short in processing cycle and high in efficiency.

The invention relates to a method of controlling green environment-friendly smelting of a converter. The method concretely comprises the following steps of (1) performing double-slag operation when Si+ Ti is not less than 0.7%; (2) performing converter rocking for more than two times altogether after the double-slag operation is ended, wherein the converter rocking angle is 30 degrees to -30 degrees, and performing lance sinking for oxygen blowing after waiting for 1 min to 2 min at a zero position; (3) manually adjusting an oxygen pressure valve to 30% to 35% during secondary lance sinking,wherein oxygen flow is 35000 m<3> / h to 38000 m<3> / h, and the lance height is 3.0 m to 3.2 m; (4) performing oxygen blowing for 30 s to 40 s, and after the flow is stabilized, manually adjusting the pressure valve to return to 85% to 88% of the initial state, and adjusting the oxygen flow to 51000 m<3> / h to 53000 m<3> / h; and (5) pressing slag by using a slag pressing material at the early stage andintermediate stage of blowing, wherein the addition amount of the slag pressing material is 200 to 300 kg per batch; and at the later stage of blowing, only allowing to add an iron-contained material, wherein the addition amount of the iron-contained material is not greater than 300 kg per batch. According to the method disclosed by the invention, through technology optimization, metal splashingliable to occur during secondary lance sinking is effectively controlled; the phenomenon that smoke dust overflows to cause pollution during secondary lance sinking is eliminated; stable control oversmelting of the converter is realized; environmental pollution is reduced; and meanwhile, the metal charge consumption is reduced.

The invention discloses an application of coal gangue as a slag suppressing agent for a converter and a method for suppressing slag in a converter. In the method, coal gangue is used as a base material of the slag suppressing agent, and the amount added each time is 1 to 2 kg / ton in the blowing process for suppressing slag. For steel, 0.2-0.5kg / ton of steel is added each time when suppressing slag in the furnace and tapping process. A small amount of slag inhibitor can achieve good slag suppression effect; it can effectively control the splashing in the converter blowing process. Due to the low price of raw materials and simple processing technology, the cost of the slag inhibitor is only 10% to 30% of the original process; and the waste of raw coal or magnesium resources is effectively avoided. This method is aimed at the situation that the iron oxide is too high and soft blowing in the blowing process, it is difficult to reverse the furnace at the end of the blowing, and the slag overflows after the supplementary blowing. The purpose of tapping. The method has no adverse effect on the environment, saves resources and reduces costs, and has popularization and application value in steelmaking production plants.

The invention discloses a domestic sewage treatment system, which comprises a manual grid pool, a sedimentation tank, a primary treatment tank, a secondary treatment tank, a tertiary treatment tank, afourth treatment tank, a horizontal subsurface constructed wetland, a vertical subsurface constructed wetland, and a discharge pool, the artificial grid pool is connected with an inlet pipe, and thedischarge pool is connected with an outlet pipe, and water outlet channels are arranged among the sedimentation tank, the primary treatment tank, the secondary treatment tank, the tertiary treatment tank, and the fourth treatment tank, the tops of the sedimentation tank, the primary treatment tank, the secondary treatment tank, the tertiary treatment tank and the fourth treatment tank are all provided with a clearing mouth, the sedimentation tank is provided with crushed straw, the primary treatment tank and the secondary treatment tank are all provided with an activated carbon adsorbent, andthe tertiary treatment tank and the fourth treatment tank are all provided with a biological filler. The domestic sewage treatment system has the advantages of fully automatic operation, simple process, no energy consumption, and high decontamination efficiency, and is suitable for the treatment of decentralized domestic sewage.