33results about How to "Avoid corrosive damage" patented technology

The invention encompasses compositions and methods for treating and modifying surfaces of teeth, which compositions include calcium and magnesium containing silicates or silica, cationic polymer modified silica or combinations thereof. The composition when applied to the teeth or a tooth surface deposit on such surfaces to repair acid damaged enamel and prevent further erosion of a tooth surface.

The invention discloses a motor rotor surface pickling burring technology, and relates to the motor manufacturing field. The technology comprises the following steps: 1, preheating a rotor; 2, pickling the surface of the rotor through using a prepared acid solution; 3, cleaning the surface of the rotor with water; and 4, drying the cleaned rotor, wherein the rotor rotates along the axis of the rotor during the step 1-4; and the rotator is supported by two supporting rollers of a supporting roller assembly, and the two supporting rollers homodromously rotate to drive the rotor to rotate. The technology has the characteristics of effective improvement of the pickling processing effect, production efficiency increase and the like.

The invention discloses a raft foundation building uplift and reinforcement structure and method in a corrosive geological environment. The uplift and reinforcement structure includes an existing building lower column, a raft foundation connected to the bottom of the column, and a composite foundation connected below the raft foundation The reinforced layer, the composite pile foundation connected under the reinforced layer of the composite foundation, and the water-stop curtain connected to the periphery of the raft foundation. During construction, by setting up the water-stop curtain, it is beneficial to block the water in the aquifer and prevent the outflow of slurry and in-situ water and soil. The inverted L-shaped design of the water-stop curtain can further avoid the further corrosion of the raft foundation and ensure the lateral Displacement limitation; through the setting of composite foundation strengthening layer and composite pile foundation, it is beneficial to locally lift the raft foundation and overall reinforcement, and improve the overall bearing capacity in combination with water-stop curtains; through the setting of groundwater monitoring holes, it is convenient for on-site monitoring during construction The level of groundwater level is conducive to maintaining the stability of water and soil pressure in the underground environment.

The invention discloses a sealing method of an acrylic-based micro-fluidic chip. The sealing method comprises the following steps: a) covering at least one layer of an acrylic chip with a micro-channel structure with a cover sheet; b) adding an adhesion promoter into the covering structure; and c) sealing under the conditions that the temperature is 0-80 DEG C and the pressure is 0-1.0 MPa to obtain the acrylic-based micro-fluidic chip, wherein compared with the unsealed micro-channel structure, the height of the micro-channel in the sealed acrylic-based micro-fluidic chip is reduced by less than 5 [mu]m. According to the method, nondestructive sealing of a multi-layer large-area complex-structure acrylic micro-fluidic chip can be realized; and an acrylic glue is diluted with a solvent toreduce the corrosivity of the glue, so that nondestructive sealing of a multi-layer large-area micro-fluidic chip is achieved under the low-temperature and low-pressure conditions.

The invention discloses an iminodisuccinic acid chelated metal salt, which belongs to the field of green chemical fertilizers and is used for supplementing metal trace elements to crops or soil, including iminodisuccinic acid or iminodisuccinic acid salt and metal-containing The product of raw material reaction of element, described raw material containing metal element is the mixing of any one or several in metal simple substance, oxide, hydroxide, carbonate or basic carbonate; The present invention can obviously improve The content and utilization rate of active ingredients in chelate fertilizers can be completely metabolized and absorbed by plants, and can also be degraded by soil microorganisms. It has the advantages of high stability, good safety, no environmental residues, and low invalid salt content. It can effectively avoid soil calcification and compaction, and reduce packaging, transportation and use costs.

The invention discloses an environment-friendly iminodisuccinic acid chelated metal salt, especially a metal chelated salt, which belongs to the field of green chemical fertilizers, and includes raw materials A, raw materials B and raw materials C. The raw material A is Alkaline hydrolysis can obtain any one or a mixture of butenedioate compounds, raw material B is any one or a mixture of compounds that can obtain aspartate radicals by alkaline hydrolysis, and raw material C is mixed with acid The reaction can generate any single substance or compound of metal cations or a mixture of several. The production process of the invention is simple, one-step synthesis, no need for secondary compounding, high active ingredient content, no nitrate, sulfate, chloride, carbonate and other ineffective ingredients, belongs to the environment-friendly preparation process, and can effectively avoid soil compaction , and reduce packaging, transportation and use costs.

The invention discloses an environmentally-friendly iminodisuccinic acid chelated metal salt, particularly relates to a metal chelated salt, and belongs to the field of green chemical fertilizer. Theenvironmentally-friendly iminodisuccinic acid chelated metal salt comprises a raw material A, a raw material B and a raw material C, wherein the raw material A is any one of or a mixture of compoundssubjected to alkaline hydrolysis to obtain butylene diacid; the raw material B is any one of or a mixture of compounds subjected to alkaline hydrolysis to obtain aspartic acid roots; and the raw material C is any one of or a mixture of elementary substances or compounds reacting with acids to generate metal cations. The production process disclosed by the invention is simple and synthesizes the environmentally-friendly iminodisuccinic acid chelated metal salt by one step without secondary compounding; the content of active components is high, and no inactive components such as nitrate, sulfate, chloride and carbonate are contained; and the environmentally-friendly iminodisuccinic acid chelated metal salt belongs to an environmentally-friendly preparation process, can avoid hardening of soil and reduces the packaging, transporting and using cost.

The invention provides a treatment device for emission reduction control over nitrogen oxide in flue gas, which has the advantages of effectively utilizing an agent, reducing the emission of the nitrogen oxide in the flue gas, simultaneously preventing over-leakage of ammonia gas, prolonging the service life of a spray gun to the greatest extent and reducing the operation and maintenance cost. The treatment device comprises an agent storage tank, a diluting water tank, an agent conveying unit, a diluting water conveying unit, a pipeline mixer, an agent spray unit and a flue wall, and is characterized in that: the agent conveying unit comprises an agent storage tank outlet switch valve, an agent spray pump and an electromagnetic flow meter; an outlet of the agent storage tank is connected with the agent storage tank outlet switch valve, the agent spray pump and the electromagnetic flow meter through a pipeline in sequence and then communicated with an inlet of the pipeline mixer; the agent spray pump is connected with a frequency converter; the frequency converter is connected with a PLC (Programmable Logic Controller) module; and an effluent concentration signal of the nitrogen oxide in a chimney is connected to an input end of the PLC module.

The invention discloses a screw propeller rust removing and painting device for a civilian ship. The device comprises a device body in which a rust removing chamber is formed, wherein storing spaces are symmetrically formed at the upper part and the lower part of the left side of the rust removing chamber; a switch chamber is arranged at the right sides of the storing spaces; a rust removing agent is fed to an empty chamber through a second feeding port; lacquer thinner is fed through a first feeding port in the upper side; an anti-rust paint is fed through a first feeding port in the lower side; and then a screw propeller shaft is inserted into a clamping block. With the adoption of the device, a small screw propeller can be fully automatically subjected to rust removing and painting treatment; compared with a manual rust removing method, the device has the advantage that the efficiency is greatly improved; the rust removing and painting are carried out in a sealing condition, so that the corrosive damage of the rust removing agent to people can be prevented; and meanwhile, the damage of paint to respiratory tract of people can be prevented.

The invention discloses an acid liquor recycling device of a graphite boat cleaning machine. The acid liquor recycling device comprises a base plate, levers and a liquor storage box; fixing frames are symmetrically arranged on the surface of the base plate; the liquor storage box is arranged between the two fixing frames; a liquor inlet box opening is formed in one end, far away from the base plate, of the outer side wall of the liquor storage box in a through manner; and a liquor outlet box opening is formed in one end, close to the base plate, of the outer side wall of the liquor storage box in a through manner. The invention further discloses the graphite boat cleaning machine. The graphite boat cleaning machine comprises a cleaning machine body and the acid liquor recycling device of the graphite boat cleaning machine. With the acid liquor recycling device, the acid liquor can be transferred between the cleaning machine body and the liquor storage box under the effect of the gravity of the acid liquor, and the corrosive damage caused when the acid liquor is pumped by a liquor pump is further avoided while the acid liquor is recycled; and a liquor inlet machine opening and a liquor outlet machine opening which are formed in the cleaning machine body are matched with the height of the liquor storage box for transfer of the acid liquor, so that the machine is very convenient and worthy of popularization.

The invention relates to a motor rotor surface acid pickling deburring machine, and relates to the manufacturing field of a motor. A vertical shaft (2) is arranged on a base (1), the vertical shaft (2) is provided with a rotating bracket (3) which is driven by a first drive mechanism, at least four station frames (4) are arranged on the rotating bracket (3), each station frame (4) is provided with a carrier roller assembly (6) for supporting a motor rotor, and two carrier rollers (6') of each carrier roller assembly (6) are driven by a second drive mechanism to rotate in the same direction; a heating device (8), an acid pickling device (9), a water washing device (10) and a drying device (11) are sequentially arranged on a cross frame of a stander (7) along the direction that the carrier roller assembly (6) enters the stander; the base (1) is arranged in the stander (7), at least three groups of carrier roller assemblies (6) are respectively arranged on operation stations inside the stander (7), at least one group of carrier roller assembly (6) is arranged outside the stander (7). The motor rotor surface acid pickling deburring machine has the characteristics that the acid pickling effect is improved, and the production efficiency is improved.

The invention discloses a medical plastic hose adhesive applicator and a using method thereof. The applicator includes an applicator box body with a cavity structure, a support frame is arranged in the cavity box body, and the cavity box body A sponge body is also provided in the body, and a U-shaped bonding groove with an upward opening is arranged on the sponge body, and a U-shaped through groove with an upward opening is arranged on the box body corresponding to the U-shaped bonding groove of the sponge body. The advantage of this solution is that it can conveniently and quickly apply the adhesive on the medical hose, the entire device has an ingenious structure, is stable and durable in use, and can greatly improve work efficiency.

The invention provides a composition for forming a heat-conducting lubricant, which or its raw materials include the following components in parts by weight: 100 parts of dimethyl silicone oil; 200-400 parts of aluminum oxide; 10-50 parts of zinc oxide 5-45 parts of lubricant; 1-10 parts of anti-settling agent; 0.1-10 parts of inorganic salt; 0.1-10 parts of thermal stabilizer; 0.01-5 parts of silane coupling agent; One or more of zinc, calcium stearate, paraffin oil, naphthenic oil and silicone; the anti-settling agent includes one of ethyl acetate, butyl acetate, xylene, n-hexane and butanol or more; the inorganic salt is selected from one or more of nitrite and sulfite. The present invention optimizes the formulation so that the provided composition can be used to prepare the heat-conducting lubricant more conveniently, and the formed heat-conducting lubricant has both excellent heat-conducting performance and lubricating performance.

The invention provides a copper alloy bonding lead wire and a preparation method thereof. The copper alloy bonding lead wire takes a copper-based alloy as a matrix and the surface of the matrix is plated with a palladium layer; the copper-based alloy is prepared from the following raw materials: copper, silver, magnesium, gold and cerium; the preparation method of the copper alloy bonding lead wire comprises the following steps: S1, pre-treating raw materials; S2, preparing an alloy blank; S3, preparing an alloy rod; S4, carrying out primary drawing; S5, carrying out medium drawing; S6, carrying out final drawing; S7, carrying out surface washing: washing with an acid washing solution for the first time, washing with de-ionized water for the second time, washing with the acid washing solution for the third time and washing with an ethanol-water mixed solution with an ethanol-water mixed solution; S8, plating the surface with palladium; S9, carrying out fine drawing; S10, carrying out heat treatment; S11, rewinding and sub-packaging. The copper alloy bonding lead wire provided by the invention has the advantages of low production cost, good surface washing effect, small corrosiveness on a copper alloy and easiness of causing wire breaking.

The present invention belongs to the technical field of the generator cleaning technology, especially relates to a generator rotor coil water circuit pickling unit. The device comprises an annular workbench and a generator rotor, the bottom wall of the annular workbench is fixedly connected with multiple vertical support pillars, the same transverse plate is fixedly connected between the support pillars, the center of the top wall of the transverse plate is fixedly connected with a first motor, the top wall of the annular workbench is provided with an annular slideway, the annular slideway isinternally rotationally connected with the same circular truncated cone, a drive shaft of the first motor is fixedly connected at the bottom wall of the circular truncated cone, the top wall of the circular truncated cone is provided with three round holes through holes communicating up and down, and the round holes are internally provided with two installation plates. The generator rotor coil water circuit pickling unit can achieve acid pickling, cleaning and drying at the same time, can achieve cleaning of a plurality of generator rotors and can improve the efficiency of the generator rotoracid pickling cleaning.

The invention discloses mud removal equipment for industrial wastewater treatment. The mud removal equipment structurally comprises a fixed seat stand, a mud remover, a mud inlet pipe, a control electric box, an extractor and a storage box, wherein the mud remover is embedded in and fixedly connected with the top end of the fixed seat stand; the mud remover comprises a motor, a rotator, a dumpingplate, a mud removal device, an isolation plate and a temporary storage box; and the mud removal device is connected to the side of the rotator in a nesting manner. According to the invention, a rotating rod rotates and operates, and a spiral push plate pushes the wastewater forwards to allow the wastewater to reach the area of the mud removal device; the extrusion work of the spiral push plate isperformed, so sludge can be quantitatively removed; angle blocks can be used for removing sludge adsorbed on the spiral push plate; due to the fact that the sludge is carried in the wastewater and filtered by a barrier plate, the sludge is adsorbed at the tail end of a pipe body; and an extension rod drives a lantern ring to move, and an inclined knife is arranged at the top end of the lantern ring and attached to the barrier plate, so the sludge adsorbed on the barrier plate can be effectively scraped, and corrosive damage of the sludge to the equipment is avoided.

The invention discloses a motorcycle headlamp and a motorcycle thereof. The headlamp comprises a light distribution mirror and a reflecting mirror; the reflecting mirror is provided with a hermetical connecting groove embedded into and hermetically connected with the edge of the light distribution mirror, and the light distribution mirror is provided with a baffle plate, wherein the baffle plate is extended outwards and is in gapless contact with the front end of the outside wall of the hermetical connecting groove; and the lower edge of the baffle plate is extended backwards and provided with a lingual plate, the lower edge of the reflecting mirror is positioned in back of the hermetical connecting groove and provided with an accommodating groove for accommodating the lingual plate, the accommodating groove comprises a rear side plate and a left side plate and a right side plate on the left side and the right side of the lingual plate, a ventilated gap is formed between the rear end of the lingual plate and the rear side plate, and the groove bottom of the groove section of the hermetical connecting groove opposite to the lingual plate is provided with a ventilated through hole for communicating the ventilated gap and the internal space of the headlamp. The ventilated passage of the headlamp is designed invisibly, so integral attractiveness and compactness of the headlamp areensured, the arrangement of the whole motorcycle is easy, and smooth ventilation of the headlamp is ensured; and moisture and dust are prevented from entering the interior of the headlamp by using gravity, the service life of the headlamp is prolonged, the use and maintenance costs are reduced, and safe driving is ensured.