10results about How to "Avoid foaming" patented technology

The application discloses a kind of antifouling self-cleaning cooling multifunctional coating and preparation method thereof.Coating main component has: water-based commercial white paint, alpha phase phosphogypsum (alpha-HPG), water-based polyurethane (WPU), ethyl acetate (EA), stearic acid (SA), N, N-dimethylformamide (DMF).First, water-based commercial white paint and alpha-HPG are modified respectively, then slurry is prepared by using simple blending method at room temperature, and coating is plated by doctor blade method, i.e. the double functional composite coating with excellent hydrophobicity and non-energy consumption cooling effect can be prepared.

The present application relates to the technical field of deep treatment of brine for preparation of potassium hydroxide by electrolysis, and discloses a method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis, step one: introducing the brine discharged from the electrolysis procedure into a buffer homogenizing tank, mixing after stirring, proportionally shunting through a double-path variable frequency pump, and respectively conveying to a titanium-based electrolytic cell and a dechlorination raw material buffer tank, the titanium-based electrolytic cell being supplied with nitrogen until the oxygen content in the cell is ≤0.5%; step two: starting the power supply of the titanium-based electrolytic cell, setting the initial cell voltage, adjusting the current density through a rectifier, and simultaneously dynamically adjusting the electrolysis parameters based on the free chlorine concentration in the brine to control the hydrogen production. The method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis can accurately control the generation and residual amount of chlorate in the electrolysis system, avoid the chlorate from passing through the ion-exchange membrane into the cathode to cause the chlorate in the finished product to exceed the standard, and significantly improve the purity and quality grade of the potassium hydroxide product.

This invention discloses a method for desulfurization by reacting hydrogen sulfide and sulfur dioxide in brine. Hydrogen sulfide and sulfur dioxide are introduced into a brine solution, and a liquid-phase Claus reaction is accelerated using a stirring paddle and steam to achieve rapid sulfur preparation and separation. Using the process method and apparatus of this invention, the sulfur dioxide and hydrogen sulfide gases are vigorously stirred in the brine solution by a bladed stirring paddle, which not only increases the contact area and reaction efficiency between the gas and liquid phases, but also solves the problem of difficult separation of sulfur suspension due to the salting-out effect. Furthermore, the process flow of this invention is simple and easy to operate, and the brine in the sulfur solution can be recycled after separation, reducing operating costs.

The utility model relates to the technical field of engine oil sump, especially an oil sump of in-line piston engine, an engine and an aircraft, the oil sump is installed in the lower part of engine crankcase body assembly, the oil sump is formed as a basin -like structure with the basically level inner bottom surface, the inner bottom surface of the oil sump is concave downward and forms the oil storage groove that the structure is further outward protruding relative to the outer bottom surface of the oil sump, the upper part inboard of the oil sump is provided with the oil return interface, the bottom of the oil storage groove is provided with the through oil drain hole, the oil drain bolt is sealed in the oil drain hole, the wide edge sealing pad is installed on the sealing edge contact surface of the oil sump and engine crankcase body assembly connection, and the width of wide edge sealing pad is greater than the width of sealing edge contact, the utility model simplifies the oil sump structure, so that can adapt to the large inclination of aircraft ±45 DEG movement, greatly reduces the oil leakage risk simultaneously, and reduces the maintenance cost.

The present application relates to fire extinguishing agent production equipment technical field, specifically to a kind of wetting agent adding device for water-based fire extinguishing agent production, including U-shaped frame, the middle part of one end of the U-shaped frame is slidably connected with connecting plate, one end of the connecting plate is fixedly installed with adjusting mechanism, the adjusting mechanism includes fixed round plate, rotating round plate is rotatably installed in the upper portion of the middle part of the fixed round plate, a plurality of straight line guide grooves are evenly formed in the outer side of the middle part of the fixed round plate.The present application can accurately change the flow area by adjusting the opening and closing of the adjusting plate, allowing users to control the flow rate of wetting agent as needed;At the same time, by driving the screw with the motor, the discharge pipe is immersed below the liquid level to add material silently, avoiding the occurrence of foaming phenomenon when adding wetting agent from the source, and cooperating with the tapered conduit diameter reduction slow flow and baffle shunt structure, it can effectively disperse high viscosity additives, prevent agglomeration, make the wetting agent mixture more uniform, and thus greatly improve production efficiency and product quality.

The invention discloses a multi-layer composite amorphous carbon coating of a metal bipolar plate and a preparation method of the multi-layer composite amorphous carbon coating, and particularly relates to the technical field of preparation of surface coatings of metal bipolar plates. The coating sequentially comprises an anchoring layer, an ion selective barrier layer and an amorphous carbon layer from inside to outside. The anchoring layer is preferably chromium nitride / chromium carbonitride with a gradient structure and is used for enhancing the binding force of the coating and a matrix; the ion selective barrier layer is preferably silicon-doped diamond-like carbon and is used for inhibiting metal ions from migrating to the surface; and the outermost amorphous carbon layer is diamond-like carbon with high sp3 content, so that excellent corrosion resistance and conductivity are provided. According to the preparation method, the transition layer is deposited by adopting a closed field unbalanced magnetron sputtering technology, and the barrier layer and the amorphous carbon layer are deposited by adopting a plasma enhanced chemical vapor deposition technology in sequence. The coating is clear in structural design, the preparation process is controllable, and the long-term durability of the metal bipolar plate in a severe environment of a fuel cell can be remarkably improved.

This utility model relates to the field of epoxy flooring technology and discloses an epoxy flooring with interlayer anti-slip textures. It includes an anti-stick layer, an anti-slip layer at the lower end of the anti-stick layer, protrusions at the upper end of the anti-slip layer, anti-slip textures on the upper surface of the protrusions, drainage grooves on both sides of the upper surface of the anti-slip layer, and a waterproof layer at the lower end of the anti-slip layer. This epoxy flooring with interlayer anti-slip textures significantly increases the friction between the ground and the contact surfaces of shoes, wheels, etc., through the combined arrangement of the anti-slip layer, protrusions, and anti-slip textures. Compared to traditional smooth epoxy flooring, the three-dimensional structure effectively disperses the dynamic pressure of pedestrians or vehicles, preventing relative sliding of the contact surfaces, shortening the sudden braking distance between the protrusions and anti-slip textures, and significantly reducing the risk of slipping in wet, oily, or dusty environments. This improves safety in industrial sites, parking lots, and other similar settings. Furthermore, the combined arrangement of drainage grooves and a waterproof layer allows for the rapid drainage of accumulated water.

The application discloses a display module and a manufacturing method thereof. The display module comprises a display panel, a touch panel and a cover plate which are sequentially stacked, and further comprises a first flexible circuit board and a second flexible circuit board. In a flat state, the first flexible circuit board has a spacing or a contact surface with a side of the second cover plate part facing the first flexible circuit board. When the contact surface is formed, the area of the orthogonal projection of the contact surface on the second cover plate part accounts for 1 / 8-1 / 5 of the area of the second cover plate part. The display module improves the reliability of the flexible circuit board, reduces the peeling of the cover plate and the probability of bubble generation in the display area. The manufacturing method is simple in steps, avoids bubble generation in the display area during the preparation process and does not need a bubble removal step.

The invention discloses a boiling-resistant modified polypropylene material and a preparation method thereof. The boiling-resistant modified polypropylene material is prepared from the following raw materials in parts by mass: 50-70 parts of low-melt-index polypropylene, 2-10 parts of ultrahigh-melt-index polypropylene, 20-30 parts of talcum powder, 3-15 parts of a toughening agent, 1-5 parts of a compatilizer, 0.2-1 part of an antioxidant and 0.3-2 parts of carbon black. The low-melt-index polypropylene is co-polypropylene with the melt index of 10-50g / 10min at 230 DEG C / 2.16 kg; the ultrahigh melt index polypropylene is homo-polypropylene of which the melt index is 1200-1800g / 10min at 230 DEG C / 2.16 kg. The boiling-resistant modified polypropylene material disclosed by the invention has better high-temperature boiling resistance and can meet the experimental requirement of boiling for 4 hours at 99 DEG C, the foaming grade can reach 0-1 grade, and the color difference value change is less than 1.

The utility model relates to cable technical field, and disclose a kind of low voltage cable processing's printing equipment, including fixed frame, further include: setting in the conveying mechanism of fixed frame top, the top of the fixed frame is provided with printer body, the top of the fixed frame is provided with PLC controller;Drying assembly, setting in the outside of conveying mechanism, the drying assembly includes the drying rack of fixed connection in the top of fixed frame, the inside of the drying rack is provided with hot blast pipe, the top of the hot blast pipe is connected with connecting pipe, the outside of the drying rack is provided with hose, the top of the drying rack is fixedly connected with hot blast box, the top of the fixed frame is fixedly connected with preheating frame;The utility model can dry low voltage cable by setting drying assembly to complete printing operation, and then can prevent the overflow or scratch of printing ink, to improve printing efficiency to some extent.