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66results about How to "With repair function" patented technology

Compound fertilizer capable of reducing cadmium lead content of vegetables in slightly contaminated vegetable field and preparation method thereof

ActiveCN102180749AReduce cadmium and lead contentWith production functionFertilizer mixturesSodium BentoniteSlag
The invention discloses a compound fertilizer capable of reducing cadmium lead content of vegetables in a slightly contaminated vegetable field and a preparation method thereof. The compound fertilizer is prepared from urea, ammonium chloride, ammonium nitrate, diammonium phosphate, a nitric phosphate potassium fertilizer, a calcium magnesium phosphate fertilizer, potassium chloride, sepiolite, kaolin, bentonite and power plant slag in a ratio. The preparation method for the compound fertilizer comprises the following steps of: A, preparing the sepiolite; B, preparing the kaolin; C, preparing the bentonite; D, preparing the power plant slag; and E, mixing the raw materials prepared in the steps A, B, C and D with the urea, the ammonium chloride, the ammonium nitrate, the diammonium phosphate, the nitric phosphate potassium fertilizer, the calcium magnesium phosphate fertilizer and the potassium chloride in the ratio, and performing production processing to prepare the compound fertilizer. The compound fertilizer is mainly characterized by comprising 36.5 to 43.5 percent of passivator which can effectively reduce active state cadmium lead content of soil and cadmium lead content of the vegetables, and 30 percent of nutrients of nitrogen, phosphorus and potassium, so that the active state cadmium and lead contents of the soil in the slightly contaminated vegetable field are reduced by 41.3 to 52.3 percent and 36.0 to 58.5 percent respectively, the cadmium content and the lead content of vegetable products are reduced by 30.1 to 52.8 percent and 27.9 to 51.0 percent respectively, and the compound fertilizer is suitable to be popularized and applied to many heavy metal contaminated areas.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Control system for desk type reflow soldering machine

The invention discloses a control system for a desk type reflow soldering machine. The control system for the desk type reflow soldering machine comprises a controller 1, an upper computer, a solid state relay, a transformer, a switch and a temperature sensor, wherein the solid state relay carries out an automatic adjustment on the power of a heating element under the control of the controller, the transformer carries out the automatic adjustment on the voltage of a hot air machine under the control of the controller 1, the switch is used for control of on-off of an air cooler and the temperature sensor carries out a real-time detection on the temperature inside a furnace of a controlled reflow soldering machine. The solid state relay and the heating element are connected to form a heating system. The transformer and the hot air machine are connected to form a hot air circulating system. The switch and the air cooler are connected to form a refrigerating system. The upper computer, the temperature sensor, the solid state relay, the transformer and the switch are connected with the controller. The control system for the desk-type reflow soldering machine is simple in structure and convenient to operate. A mixed heating mode combined the hot air and an infrared is forcibly used to achieve the welding work under the static state, so the fully automated operation of the whole technique process is achieved.
Owner:SHAANXI ZIZHU ELECTRON

Real-time rubber waterstop monitoring method for immersed tunnel and rubber waterstop

The invention discloses a real-time rubber waterstop monitoring method for an immersed tunnel. By acquiring operation data of the rubber waterstop in the immersed tunnel in real time and comparing the operation data with experiential data of the rubber waterstop so as to analyze real-time operation state of the rubber waterstop, real-time monitoring for the rubber waterstop is realized, faulted rubber waterstop can be maintained or replaced immediately when any abnormality is found, and practical significance is realized for safety operation of the tunnel. The invention further discloses the rubber waterstop which comprises a rubber body with a middle air bag, strengthening curtain cloth for increasing compressive strength of the rubber waterstop is arranged inside rubber of the middle air bag, an air nozzle is arranged on the middle air bag, and an air gauge is arranged outside the air nozzle; the middle air bag penetrates a waterstop body and is connected with the outside via the air nozzle which is provided with the digital-display air gauge, so that relative air exchange and quantified internal pressure adjustment can be performed, and quantified adjustment and control for compression amount of the rubber waterstop are achieved.
Owner:ZHUZHOU TIMES NEW MATERIALS TECH

Method for preparing ceramic biological material with abrasion self-remediation function in in-vivo environment

The invention discloses a method for preparing a ceramic biological material with an abrasion self-remediation function in an in-vivo environment. The ceramic biological material comprises the following raw materials in percentage by mass: 90-99% of zirconia powder (alumina powder) and 1-10% of metal powder. The method comprises the following steps: putting the raw materials into a planet ball mill, uniformly mixing according to a wet method, drying, and performing hot-pressing sintering at 1100-1800 DEG C for 0.5-3 hours in the presence of an inert atmosphere. The metal doping mass ratio in the prepared ceramic biological material is within 1-10%; when the ceramic biological material is used as a friction accessory (such as an artificial joint and an artificial intervertebral disc) in a human body, because of fiction abrasion and corrosion, a layer of protein biological membrane can be formed on a friction interface, along with friction, the protein biological membrane can be converted into a graphite layer, and friction and abrasion of the ceramic biological material can be effectively reduced. Abrasion remediation of the ceramic biological material can be achieved, and the ceramic biological material is good in abrasion self-remediation function in the human body.
Owner:SOUTHWEST JIAOTONG UNIV

Soil crushing device for agricultural research

The invention discloses a soil crushing device for agricultural research, belongs to the technical field of agricultural experiments, and solves the problem of small contact area between a crushing rod and soil in an existing device. The device is technically characterized in that the device is characterized by comprising a base and a stirring cavity. A plurality of supporting legs used for supporting the base are fixedly installed at the bottom of the base; the stirring cavity is formed in the upper portion of the base; a driving assembly is arranged at the left side of the stirring cavity;a stirring assembly is arranged in the stirring cavity; the stirring assembly and the driving assembly are fixedly connected through a shaft coupler; and the driving assembly comprises a stirring motor and a storage battery, wherein the storage battery is arranged at the bottom of the stirring motor and electrically connected with the stirring motor through a wire. According to the embodiment of the invention, a hammer crushing assembly and a second crushing knife are arranged, so that sufficient refining of soil in the middle of the stirring cavity is guaranteed; meanwhile, a striking block is arranged, so that blocky soil in the stirring cavity can be crushed, and the fineness of the soil is guaranteed; and the soil crushing device further has a soil remediation function.
Owner:长沙市天珍科技有限公司

Composite insulator cleaning composition with repairing function and preparation method thereof

The invention provides a composite insulator cleaning composition with repairing function, and a preparation method thereof, and belongs to the technical field of cleaning agents. The composite insulator cleaning composition comprises a dirt cleaning agent and an organic silicon rubber repairing agent, does not contain corrosive and forbidden and limited substances, and consists of a surfactant with relatively small surface tension, a permeation wetting agent, a washing assistant, a dust-proof agent, an insulating layer repairing agent and the like. According to the invention, a plurality of organic auxiliary agents cooperate to spontaneously soak and spread on the surface of the insulator with the dirt, so that the dirt falls off from the surface of the insulator, the dirt removing capability is ultrahigh, and the wetting and scrubbing time is obviously shortened; the contained functional organic silicon is deposited on the surface of the composite insulator to form a repairing layer of 2-5 microns, so that the corroded and uneven part of the surface layer is repaired, and the hydrophobicity and hydrophobic mobility of the surface are recovered; and the contained dust-proof agent can effectively reduce the follow-up dirt storage probability of the insulator and prolong the cleaning period.
Owner:苏州禾川化学技术服务有限公司

Pressure automatic leakage stopping type gate valve

The invention discloses a pressure automatic leakage stopping type gate valve, and belongs to the field of gate valves. According to the scheme, the problems that when a valve plate in the gate valve is still closed and is not tight after being closed and leakage occurs, generated air pressure enters pressure inlet holes in two sides and flows into air inlet holes, an expansion air bag expands under the action of pressure, a sealing piece is gradually extruded when the expansion air bag continuously expands upwards, a sealing layer is attached to the surface of the valve plate to plug the gate valve, after the sealing layer is attached to the surface of the valve plate, one layer of the surface of the sealing layer is bonded to the surface of the valve plate, the thickness of the surface of the valve plate is increased, and the phenomenon of leakage is not prone to occurring in the gate valve plugging process of the valve plate next time are solved. When the phenomenon of continuous leakage still occurs next time, the sealing layer continues to be bonded to the surface of the valve plate to plug the valve plate, so that the gate valve has the automatic leakage stopping and repairing functions after leakage, the working efficiency of the gate valve is improved, and the phenomenon that the gate valve needs to be disassembled and maintained multiple times is avoided.
Owner:浩工阀门有限公司
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