7results about How to "Adjust viscosity" patented technology

The application belongs to the technical field of etching liquid, and particularly relates to a photoresist stripping liquid for OLED, a preparation method and application thereof. The photoresist stripping liquid comprises, with the total mass of the formula being 100%, 1-10% of organic alcohol amine, 2-5% of amidino compound, 0.1-3% of polyol, 0.01-0.2% of betaine type corrosion inhibitor, and the rest is organic solvent. The photoresist stripping liquid for OLED has excellent stripping performance and good protection effect on the Al layer. The photoresist stripping liquid is particularly suitable for stripping requirements of OLED devices containing Al, can safely strip the photoresist which is cross-linked and carbonized after solidification, and at the same time protects the Al process in the OLED device from being corroded, and has good application prospect.

The application relates to the technical field of rare metals, and discloses a method for preparing metal hafnium by reduction, which comprises the following steps: S1, mixing hafnium oxide, calcium and calcium chloride, and carrying out a thermal reduction reaction under a protective gas to obtain a solid mixture; S2, carrying out acid pickling, water washing and drying on the solid mixture to obtain metal hafnium powder; S3, melting the metal hafnium powder under the protective gas, and cold-pressing and forming the metal hafnium powder to obtain the metal hafnium; the calcium chloride is composed of first calcium chloride and second calcium chloride, and the first calcium chloride and the second calcium chloride are in different forms. Through the technical scheme, the problem of high oxygen content in the related art when metal hafnium is prepared by reduction is solved.

This invention relates to a degumming composition, its preparation method, and the degumming method thereof. The degumming composition comprises the following components in weight percentages: 84%–93.5% degumming solvent, 3%–5% solvent oil, 0.5%–3% solid wax, 1%–3% organobentonite, and 2%–5% polar activator; wherein the degumming solvent includes one or more of dichloromethane, N-methylpyrrolidone, and ethylene glycol monobutyl ether. This invention combines the degumming solvent, solid wax, solvent oil, organobentonite, and polar activator in a specific ratio, achieving synergistic effects among the components to obtain a degumming composition with slow evaporation and short degumming time.

The utility model discloses a viscosity-adjustable cream stirring device which comprises a cream stirring barrel movably installed on the inner side of a supporting frame, a stirring motor is arranged at the top of the cream stirring barrel, an output shaft of the stirring motor is fixedly connected with a stirring shaft, and the bottom end of the stirring shaft rotationally penetrates into the cream stirring barrel and is fixedly connected with a scattering head. Stirring paddles are fixedly connected to two sides of the stirring shaft; an adjusting bin is fixedly mounted on the left side of the top of the cream stirring barrel, and corn starch is stored in the adjusting bin. According to the utility model, not only is the viscosity of cream convenient to adjust, but also the cream material can be fully and uniformly stirred and processed by utilizing the matching of up-down vibration and rotary stirring of the cream material, particularly, the dispersion effect on the powder material is better, the phenomena of starch caking and insufficient colloid dissolution in the prior art are avoided, and the production efficiency is improved. Therefore, the cream viscosity distribution is more uniform, and the overall stirring and using effects are better.

This utility model discloses a grouting device for water conservancy engineering construction, belonging to the field of grouting technology for water conservancy engineering. The device includes a grouting truck and casters. Multiple casters are fixedly connected to the bottom of the grouting truck, and a grouting tank is fixedly connected to the upper surface of the truck. A precision grouting component is installed on the outer surface of the grouting tank, and a mixing and defoaming component is installed inside the tank. It can monitor and precisely control the flow rate of the grouting fluid in real time through a flow meter on the surface of the grouting pipe, ensuring that the grout is injected into the stratum at an appropriate rate, avoiding problems such as stratum rupture or uneven distribution caused by excessively fast or slow flow rates. Simultaneously, a pressure detector can detect pressure changes during the grouting process in real time, promptly identifying abnormalities. The safety and effectiveness of the grouting operation can be ensured by adjusting the speed or pressure of the water pump, thereby reducing sudden impacts on the stratum and lowering the risk of stratum rupture.

The invention provides a process method for purifying and refining brass and removing impurity elements of iron, lead and aluminum, and belongs to the technical field of brass purification and refining and continuous casting processing. According to the process method, a horizontal continuous casting furnace is used as core production equipment, sodium borate and calcium oxide are compounded to serve as a covering agent, the impurity elements of iron, lead, aluminum and phosphorus in the molten brass are efficiently removed through the integrated process of smelting, refining and impurity removal and continuous casting, non-magnetic brass and lead-free brass can be flexibly produced, and the production efficiency is improved. And a key process support is provided for subsequent quality upgrading of brass products. According to the method, technological parameters are easy to control, a covering agent is easy to purchase, cost is low, continuous casting forming defects are few, the rejection rate of finished product machining is reduced to 2% or below, production efficiency is improved by 15%-20%, and the method can be widely applied to large-scale production of brass products. The problems that when brass is produced through an existing horizontal continuous casting furnace, impurities such as iron, lead and aluminum are difficult to remove, and therefore finished brass cannot meet the non-magnetic and lead-free specification requirements are well solved.

The invention relates to the technical field of ore grinding, and particularly discloses a composite grinding aid for quartz ore grinding and a preparation method of the composite grinding aid. The phosphonic acid group in the molecular structure has specific extremely strong affinity to hard acid type metal impurities such as iron, titanium and aluminum exposed in quartz crystal microcracks; the methylallyl alcohol polyoxyethylene ether is used as a steric hindrance monomer, so that the quartz fine particles are further prevented from getting close to one another and being agglomerated again, and the flowability of ore pulp is remarkably improved; the acryloyl morpholine is used as a polarity adjusting monomer, a rigid morpholine ring structure in molecules of the acryloyl morpholine greatly enhances the stability of a polymer main chain, layering and precipitation phenomena of the grinding aid in ore pulp are avoided, meanwhile, the viscosity of a system can be adjusted, abnormal fluidity of the ore pulp caused by an overlong polyether chain is avoided, and the stability of the grinding aid effect is ensured.