32results about How to "Easy to preservative treatment" patented technology

The invention discloses a pipeline anti-corrosion rotary clamping device. The pipeline anti-corrosion rotary clamping device solves the problems in the prior art that pipe coaxial clamping cannot be achieved and movement is inconvenient. The pipeline anti-corrosion rotary clamping device is characterized in that universal wheels are arranged at the four corners of a base so that movement can be facilitated; a support base is arranged on the base through a support frame, a rotary sleeve is rotatably supported in an inner cavity of the support base, and a motor drives the rotary sleeve to rotatethrough a transmission gear; and an electric push rod is coaxially fixed in an inner cavity of the rotary sleeve, clamping arms are symmetrically hinged to a fixed sleeve of the electric push rod, clamping blocks are symmetrically arranged on the clamping ends of the clamping arms, and support rods are hinged between the middle portions of the inner sides of the clamping arms and a telescopic rodof the electric push rod; and a centering fixed rod coaxially fixed together with the telescopic rod is coaxially connected with a centering shaft through a connecting sleeve. The centering shaft cooperates with the clamping arms and the clamping blocks to conduct centering clamping, the pipeline is stable, and the pipeline anti-corrosion rotary clamping device is suitable for clamping when the pipeline is subjected to anti-corrosion treatment.

A treatment solution, preparation method and process for improving surface corrosion resistance of magnesium alloys, used for surface protection of various magnesium alloys during short machining intervals, the treatment solution contains silane coupling agent, rare earth salt, corrosion inhibitor, ethanol , Combination of two or more components in deionized water, the main ratio is: silane 2%-15%, deionized water or ethanol 85%-98%; or silane 4%-12%, ethanol 4%-10% %, 80%-90% of deionized water; the total amount of other additives <1%. The treatment solution is simple and easy to operate. The thickness of the treated film is less than 2 microns, and it can resist the environment with a temperature higher than 50°C and a humidity higher than 80% for no less than 15 days, that is, the treated magnesium alloy has no corrosion marks on the surface for 15 days in a high-heat and high-humidity environment. The anti-corrosion film layer of the present invention has the following characteristics: 1) excellent bonding force with the alloy substrate; 2) good resistance to high temperature and high humidity; 3) does not affect the subsequent processing and surface coating of the workpiece.

The invention provides an active carbon gas sulfur free reverse synchronic working tower, with several vertical separation barricade between the shell and the central post and active carbon layer within, each layer having spray device whose top having gear ring with fan shape wind resistance cover, tapering dilute acid introduction plate, gas and liquid introduction plate, dilute acid collection plate under the active carbon supporting plate, gear of the other gear ring teething with the other gear and fixed with scraping plate, dust exhaust under the tower, whose bottom has Venturi air inlet. This kind of synchronic tower can be adhesive of active carbon and dropping it off at the same time, realizing continuous working of the tower, meeting the requirement for desulfuration, with less land and equipment investment, low running cost and reduced corrosion area.

The invention relates to an integrally-cast crossbeam with an air storage function of an air suspension frame. The crossbeam comprises a crossbeam main body and a pair of sealing end covers arranged at the two ends of the direction of the long axis of a crossbeam pipe body, wherein the crossbeam main body is formed by integrally casting the crossbeam pipe body and a pair of crossbeam connectors which are symmetrically arranged at the two ends of the crossbeam pipe body; meanwhile, a V-shaped seat pushing group is further integrally cast and formed on the outer wall of the crossbeam pipe body,and an air inlet and an air outlet are formed in the crossbeam pipe body; a reinforced convex rib group is further arranged on the inner wall of the crossbeam pipe body; and a seal ring set attached to the inner wall of the crossbeam pipe body is further mounted to the outer walls of one sections of the sealing end covers, wherein one sections of the sealing end covers extend into a cavity of thecrossbeam pipe body. The integrally-cast crossbeam has the advantages that the crossbeam is formed by integrally cast, on the basis of air supply storage, the sealing performance of the crossbeam canbe improved, the structural strength of the crossbeam is ensured, and meanwhile, manufacturing is more convenient.

The invention relates to a self-dumping semitrailer frame which comprises two longitudinal beams and a plurality of cross beams arranged between the two longitudinal beams, and each longitudinal beamcomprises an upper wing plate, a web plate and a lower wing plate which are connected in sequence; the web plate comprises a plate A, a plate B and a plate C which are connected in sequence, the plateB is perpendicularly connected with the plate A and the plate C, the plate A is connected with the upper wing plate, the plate C is perpendicularly connected with the middle of the lower wing plate,and the plate B and the plate C are connected with the cross beam in a welded mode. The self-dumping semitrailer frame has the advantages of reasonable structural design, high structural strength, fewwelding processes, good matching with a chain conveying mechanism, stable and reliable structure and the like.

The invention relates to a connection method of ultrahigh molecular weight polyethylene pipelines, comprising the following steps: carrying out the U-shape turning on the ends of the pipelines, adding a sealing rubber ring at the joint part of two U-shape turnups, lining a steel ring at the interior of the U-shape turnup and sleeving a steel jacket which has a tapered inside at the outside; pressing two U-shape joints into the steel jacket from two sides of the external steel jacket by squeezing the steel rings of the two pipelines from the both sides, and performing the compulsively squeezing based on the slope principle; and sealing by a high strength anaerobic adhesive, galvanizing the steel pieces at the joint part, and then performing the packaging and sealing by the radiation cross-linked polyethylene heat-shrinkable tape. The connection method of the invention can bear the pressure of 30 MPa without the leakage, and can reduce the consumption of the joint material and enhance the construction speed significantly.

The invention discloses a chemical pipeline anti-corrosion treatment method. A following chemical pipeline anti-corrosion treatment device is adopted in the chemical pipeline anti-corrosion treatmentmethod, and the chemical pipeline anti-corrosion treatment device comprises a machining rack, a fixing unit and a coating unit. The fixing unit is arranged at the upper end of the machining rack in asliding manner, and the coating unit is installed at the inner side of the fixing unit. The device can solve the problems that most of traditional chemical pipeline anti-corrosion treatment adopts manual paint spraying to conduct anti-corrosion treatment on a chemical pipeline, due to the fact that paint spraying components are complex, certain harm can be caused to the human body, even coating cannot be guaranteed, and the use performance of the chemical pipeline is affected; and an existing chemical pipeline anti-corrosion treatment device basically and directly conducts anti-corrosion treatment on the machined chemical pipeline, dust and scraps on the surface of the chemical pipeline cannot be removed in time, and therefore the problems that a preservative falls off easily, cost is wasted, and the anti-corrosion effect cannot be achieved are solved.

The inner press roller with rolling outline matching screw pipe blank features its rolling curve equation. Owing to the linear contact, the present invention can avoid wavy rolling impression and raise the rolling quality. The decrease of wavy rolling impressing is favorable to the anticorrosion treatment of the pipe, low conveying resistance, homogeneous deformation of the pipe and inherent quality of pipe.

The invention relates to a multifunctional electric grinding machine which comprises a main body, a motor and a battery are correspondingly arranged at the upper end and the lower end of the main body, a control device connected with the motor and the battery is arranged in the main body, and a grinding device is installed on an output shaft of the motor; the grinding device comprises a front buckling piece and a rear buckling piece which are buckled with each other, and a grinding wheel clamped between the front buckling piece and the rear buckling piece; the front buckling piece and the rear buckling piece are fixed to the output shaft of the motor through mounting holes formed along the axis; the grinding wheel comprises a supporting ring; densely-distributed steel wires are arranged on the supporting ring; each steel wire is arranged in the radial direction of the supporting ring; the end, away from the supporting ring, of the steel wire is provided with a polishing contact formed through bending, and the bending direction of the polishing contact is consistent with the rotating direction of the grinding wheel. The multifunctional electric grinding machine has the advantages of being simple in structure, convenient to operate and control, high in functionality, good in adaptability and high in grinding efficiency.

The invention provides a special-shaped flange for pipeline hard seal connection. The special-shaped flange for pipeline hard seal connection comprises a connecting male end, a connecting female end and an outer sleeve flange, wherein the connecting male end is arranged in the connecting female end in a penetrating way; a sealing layer is arranged between the connecting male end and the connectingfemale end; the outer sleeve flange sleeves the outer side of the connecting male end and is fixedly connected with the connecting male end. According to the special-shaped flange for pipeline hard seal connection provided by the invention, a sealed connection manner with the cooperation of the connecting male end, the connecting female end and the outer sleeve flange replaces an original weldingmanner so as to connect two groups of pipelines in a sealing way; through the special-shaped flange provided by the invention, sealed connection can be conveniently carried out on the spot, and the construction speed can be accelerated; the connecting male end and the connecting female end can be conveniently subjected to relevant preservative treatment, so that the problems of cracking and perforation of an original pipeline welding joint can be solved, and the giant loss caused by cracking and perforation of the welding joint is directly reduced; and in addition, the wall thickness of the part on which the connecting male end and the connecting female end crossing and sleeving mutually is larger, so that the overall preservative time is longer, and the pressure-resistant performance isbetter.

The invention provides a wood preservative treatment method. The method adopts the following wood preservative treatment device, the wood preservative treatment device comprises a processing shell, atransmission unit and an execution unit, an annular sliding groove is formed in the inner wall of the processing shell, the transmission unit is arranged in the annular sliding groove in a sliding mode, and an execution unit is mounted on the transmission unit. The wood preservative treatment method can solve the problems that firstly, most of traditional wood preservative treatment adopts manpower to coat the surface of wood with a preservative, but the preservative is complex in component and prone to causing great harm to a human body, and the coated wood needs to be naturally air-dried, sothat dust is prone to adhering to the wood, and the preservative effect is affected; and secondly, an existing wood preservative device basically performs preservative treatment on wood one by one and cannot perform batch processing, so that the working efficiency is influenced, the working time is prolonged, and the like.

The invention discloses a cantilever connecting structure for a roots pump or a screw pump. The cantilever connecting structure comprises an outer shell, a bearing end cover, a driving shaft rotor and a cantilever rotor, wherein the driving shaft rotor is connected with a driving positioning sleeve, and a circular boss is arranged on the driving positioning sleeve; the cantilever rotor comprises a linear rotor, a transition cylinder and a cantilever rotor positioning ring; the cantilever rotor positioning ring is fixedly connected with the driving positioning sleeve; and the cantilever rotor is sleeved with the outer shell, the bearing end cover is arranged at the outer side of the driving shaft rotor, a first step is arranged in the bearing end cover, a second step is arranged on the outer surface of the driving shaft rotor, a bearing cavity is formed between the first step and the second step, and a bearing is installed in the bearing cavity. The cantilever connecting structure overcomes the defects in the prior art, the cantilever rotor positioning ring is matched with the driving positioning sleeve, the driving positioning sleeve is matched with the driving shaft rotor, the rigidity of the cantilever rotor can be ensured, the overall performance of the cantilever rotor can be kept, the machining requirement of the cantilever rotor is greatly lowered, and embedded matching of an extended shaft and the rotor is not needed any more.

The invention discloses a spiral coil heat exchange pressure-bearing water tank and belongs to the field of pressure-bearing heat preservation water tank engineering systems. At present, along with active promotion of energy-saving environment-friendly policies, some new energy projects are greatly developed, for example, the cleanliness is greatly improved due to utilization of air energy heat pumps, ground source heat pumps and water source heat pumps, and the heat exchange type pressure-bearing heat preservation water tank belongs to necessary and conventional equipment when the new energy is used for obtaining living hot water; however, the heat exchange type pressure-bearing heat preservation water tank capable of being matched with the heat pumps and good in heat exchange effect does not exit all the time. In order to solve the problem, the spiral coil heat exchange pressure-bearing water tank is specially designed and composed of a shell, a heat preservation layer, an inner container and an end cover. Auxiliary accessories are integrated and assembled to the end cover for facilitating maintenance and replacement and meanwhile being beneficial to corrosion prevention treatment on the inner wall of the inner container; and the end cover is assembled to the inner side of a port, the structure is reasonable, and leakage is avoided.

The invention discloses a supercharging device and a use method thereof. The supercharging device adopts a wood preservative treatment device; the wood preservative treatment device comprises a devicehousing; a working chamber is formed in the device housing; a treatment box body is fixedly mounted on the bottom wall of the working chamber; an electric cylinder is fixedly mounted in the end surface of the top of the device housing; the end surface of the bottom of a downward piston push rod of the electric cylinder is fixedly connected with a pressure block; a fastening block is fixedly mounted in the internal wall of the working chamber; a sliding square hole which runs through the upper end surface and the lower end surface of the fastening block is formed in the fastening block; the pressure block is in sliding fit with the sliding square hole; a compression block is arranged at the bottom of the pressure block; an preservative chamber with an upward opening is formed in the end surface of the top of the treatment box body; side slide grooves are symmetrically formed in the left wall and the right wall of the preservative chamber; the side slide groove is in sliding fit with the compression block; and a sealing plate is mounted on the external side of the pressure block in the form of sliding fit.