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202results about How to "Clean appearance" patented technology

Ceramic microwave absorbing material and preparation method and application thereof

The invention discloses a ceramic microwave absorbing material and a preparation method and an application thereof. The ceramic microwave absorbing material comprises ceramic material powder and microwave absorbing powder, and the weight percentage of the components is as follows: 40 to 80 percent of ceramic material powder and 20 to 60 percent of microwave absorbing powder. The preparation methodof the ceramic microwave absorbing material comprises the following steps: 1) respectively weighing the ceramic material powder and the microwave absorbing powder according to weight percentage; 2) evenly mixing the ceramic material powder with the microwave absorbing powder to obtain compound wave-absorbing powder; 3) evenly mixing the compound wave-absorbing powder with methylcellulose and water to obtain the pulp of the ceramic microwave absorbing material; 4) forming the pulp to obtain a green body; and 5) drying the green body, and then sintering at high temperature to obtain the ceramicmicrowave absorbing material. The ceramic microwave absorbing material can be used for manufacturing ceramic microwave absorbing cooking equipment. The cooking equipment has high microwave utilization rate and heating efficiency; and food is not easy to be coked and is heated more uniformly. The preparation method of the ceramic microwave absorbing material has simple technique and low cost of raw material and processing.
Owner:MIDEA GRP CO LTD

Notebook computer system with modular function expansion structure and removable functional expansion module

A notebook computer system with a modular function expansion structure and a removable function expansion module comprise a modular removable function expansion module. The modular function expansion module comprises at least one function expansion bin, a removable function expansion module and an electrical interface, wherein the function expansion bin is embedded in a notebook computer mainframe; the removable function expansion module can be inserted in the function expansion bin and work; and the electrical interface is connected with the removable function expansion module and the mainframe. The function expansion bin is of a single-layered or double-layered or three-layered structure; and at least a computer bus communication interface, a battery power supply interface, a data interface and an integrated interface or a combination of the computer bus communication interface, the battery power supply interface, the data interface and the integrated interface are included in the electrical interface of the function expansion bin. The removable function expansion module consists of a function component enwrapped by a shell and a module connector connected with the electrical interface, the outer appearance of the removable function expansion module or the outer appearance of the removable function expansion module after being superimposed and combined is matched with the inside space of the function module expansion bin. The invention has the advantages of stronger function expansion, configuration update and interchange and universal performance and can provide various types of quick switching external interfaces and function expansion.
Owner:许文武

Asphalt separant and preparation method thereof

The invention provides an asphalt separant and a preparation method thereof. The asphalt separant is uniform light yellow emulsion and comprises, by weight, 4-10 parts of dimethyl silicone, 1-2 parts of surface active agents, 4-10 parts of glycerol, 40-80 parts of plant oil, 20-60 parts of water, 0.5-0.8 part of preservative and 0.2-0.3 part of aromatic. The preparation method includes the following steps that all the components are pre-heated to 60-80 DEG C, the dimethyl silicone oil, the glycerol and the plant oil are sequentially added into a reaction kettle with the constant temperature of 60-80 DEG C, the surface active agents and the water are added after stirring is carried out for 10-20 min, then stirring is carried out for 10-20 min, high-speed shearing emulsifying are carried out for three times through a colloid mill at the rotation speed of 1000-6000 r/min, and the preservative and the aromatic are added in the emulsifying process, and the asphalt separant is prepared. The asphalt separant has the advantages of being environmentally friendly and free of pollution, and is soluble to water, good in chemical stability, excellent in high temperature and low temperature resistance, little in use amount and excellent isolation efficiency. Influences to performance of asphalt mixed materials are small, and the asphalt separant can be used for adhesion resistance of various mechanical devices in asphalt mixed material conveying and construction, and is wide in application range.
Owner:XIAN HIGHWAY INST

Method for reinforcing alpha hemihydrate gypsum hydrated hardenite by employing organic complex additive agent

InactiveCN101314534A2h wet flexural strength increasedIncrease dry-dry flexural strengthAcid waterSuperplasticizer
The invention discloses a method which adopts an organic compound additive to reinforce an alpha-semi-hydrated gypsum hydration hardened body. Calculated by the total mass of alpha-semi-hydrated gypsum and an additive, the additive is prepared according to the following percentage by mass: 0.01 to 3.0 percent of high efficient naphthalene water reducing agent (FDN), 0.01 to 3.0 percent of high efficient melamine water reducing agent (SM), 0.01 to 3.0 percent of high efficient polycarboxylic acid water reducing agent (PC) and 0 to 1.3 percent of antifoaming agent. The additive and an alpha-semi-hydrated gypsum raw material or a powder grinding material undergo even dry mix and then are fully mixed with an amount of water inside mixing equipment; and mixed gypsum undergoes condensation and hardening according to product requirements. The 2h wet rupture strength of modified gypsum is increased by 20 to 60 percent, while 2h wet compressive strength is increased by 30 to 100 percent; meanwhile, the absolute dry rupture strength of the modified gypsum is increased by 35 to 70 percent, while the absolute dry compressive strength is increased by 30 to 100 percent; moreover, the method has appropriate condensation time, fine and clean appearance and excellent leveling property and water resistance.
Owner:ZHEJIANG UNIV

In-situ calibrating device with loaded direct-current torque motor and loaded driving ball screw assembly

The invention belongs to the field of engine tests, discloses mechanical subsystems of in-situ calibrating systems, and relates to an in-situ calibrating device with a loaded direct-current torque motor and a loaded driving ball screw assembly. The in-situ calibrating device comprises the direct-current torque motor, the high-precision ball screw assembly, a high-precision encoder, a linear displacement sensor, a force transfer frame, a standard force sensor, a working force sensor, force transfer balls, force transfer ball sockets, a thrust frame, a force bearing frame, a motor base, a base, tapered roller bearings, a linear bearing, an electromagnetic clutch, double worm gear reducers, a hand wheel, an electric limit switch, a limit pressure plate and the like. The in-situ calibrating device has the advantages that an in-situ calibrating system comprises the in-situ calibrating device, a control subsystem of the in-situ calibrating system and a software subsystem of the in-situ calibrating system, an electric servo automatic control mechanical device loading method is implemented, accordingly, the in-situ calibrating device is high in in-situ calibrating loading force precision, is high in stability, good in safety and applicable to small-tonnage force and has an overload protection function, calibrating procedures can be automated, and manual loading modes are taken into consideration.
Owner:北京瑞赛长城航空测控技术有限公司 +2
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