137results about How to "Safety hazard" patented technology

A temperature controlled showerhead for chemical vapor deposition (CVD) chambers enhances heat dissipation to enable accurate temperature control with an electric heater. Heat dissipates by conduction through a showerhead stem and fluid passageway and radiation from a back plate. A temperature control system includes one or more temperature controlled showerheads in a CVD chamber with fluid passageways serially connected to a heat exchanger.

A temperature controlled showerhead for chemical vapor deposition (CVD) chambers enhances heat dissipation to enable accurate temperature control with an electric heater. Heat dissipates by conduction through a showerhead stem and fluid passageway and radiation from a back plate. A temperature control system includes one or more temperature controlled showerheads in a CVD chamber with fluid passageways serially connected to a heat exchanger.

A temperature controlled showerhead for chemical vapor deposition (CVD) chambers enhances heat dissipation to enable accurate temperature control with an electric heater. Heat dissipates by conduction through a showerhead stem and fluid passageway and radiation from a back plate. A temperature control system includes one or more temperature controlled showerheads in a CVD chamber with fluid passageways serially connected to a heat exchanger.

The invention relates to a full gesture capture method based on momentum wheel control. The full gesture capture method based on the momentum wheel control includes following steps of rate damping, star capture, gesture updating and geomagnetic strength calculation of star noumenon, the sun search and the sun directional gesture confirming, aim capture gesture confirming, and wheel control adjusting gesture and magnetic torquer unloading. The full gesture capture method aims to solving the problem of spacecraft full gesture capture, is based on momentum wheel control, and engineer operability is strong.

An apparatus is disclosed for facilitating spoilage detection in bulk grain storage bins via dust-free or substantially dust-free air sampling. Dust particles are passively removed from sampled air without the use of barrier filters or electrostatic screens, but instead through the use of a non-linear pathway that is open at one end and closed at the other end. A system is disclosed that incorporates a coiled pathway as an air inlet element combined with a carbon dioxide or other gas detector element to provide an integrated detector module suitable for permanent installation in a dusty bulk grain storage bin environment to provide spoilage gas measurements over time. The system may communicate data to a central data storage system via cellular telephone or long range radio frequency data transmission. Alerts and alarms are generated and transmitted electronically to users via email, SMS text, automated phone messages and other means.

The invention provides a mercury-free catalyst applied to stationery bed for preparing chloroethylene and a preparation method thereof. The catalyst takes activated carbon, pretreated by hydrochloric acid or sodium hydroxide water solution, as a carrier, and gold trichloride and ferric chloride as active components, and compared with the ordinary mercury-free catalyst, according to the preparation method of the catalyst, the gold trichloride is guaranteed not to be reduced and can be uniformly and firmly loaded on the surface of the activated carbon carrier by replacing nitrohydrochloric acid in the preparation of the catalyst with hydrogen peroxide and taking other metal chloride, capable of promoting the decomposition of the hydrogen peroxide, as auxiliaries. The catalyst has high activity and selectivity in the reaction of preparing chloroethylene in the stationery bed through acetylene hydrochlorination, and the preparation method is simple and efficient, and green and environment-friendly, and has important practical significance in the industrial application.

The invention discloses a laminating rubber plug which comprises a rubber plug crown part and a rubber plug neck part, wherein the bottom surface of the rubber plug neck part is a spherical arc surface; the surface of the plug neck is covered with a film; the laminating part stretches from the surface of the plug neck to the plane position of the plug crown part sealed with a bottleneck; the plug column part of the rubber plug neck part has a small top and a big bottom; and spherical concave pinpricks are formed in the top surface of the rubber plug crown part, and protuberances are arranged around the pinpricks. The invention also discloses a production method of the laminating rubber plug, which comprises four steps of piece squeezing, piece punching, vulcanization and after-treatment. Due to the technical scheme, direct contact between the rubber plug and tablets can be prevented, the medicine is prevented from permeating and being precipitated and dissolved out for sure, the air tightness can be guaranteed, the plug jump can be avoided in automatic encapsulation, and exceeding fragmentation caused by a non-standard needle can be prevented; and moreover, secondary vulcanization is reduced in the production method, the silicification technology is not adopted, the materials and secondary pollution are reduced, and the original characteristics of the film materials are guaranteed.

The invention discloses a waterborne leveling agent for dyeing ultrafine fiber PU synthetic leather, which relates to the technical field of synthetic leather. The waterborne leveling agent is prepared from the following raw materials in parts by weight: 25 to 35 parts of methoxy polyethylene glycol, 10 to 15 parts of sodium polyacrylate, 1 to 5 parts of hydrogenated ricinoleic acid, 1 to 5 partsof gamma-polyglutamic acid, 1 to 5 parts of N-hydroxyethyl acrylamide, 0.5 to 3 parts of 2-Amino-2-(hydroxymethyl)-1,3-propanediol, 0.5 to 3 parts of povidoneK30, 0.05 to 0.5 part of vinyl trimethoxysilane, and 0.05 to 0.5 part of titanate coupling agent TMC-WT. The leveling agent of the invention belongs to the waterborne leveling agent; and by adopting the waterborne leveling agent, the staining rate of the dye on the synthetic leather can be significantly increased, the color difference can be reduced, the uniformity in dyeing the synthetic leather can be realized, a K/S value at 460nm isgreater than 4, and a DEcmc value is smaller than 0.3.

The invention discloses a classification garbage can. The classification garbage can comprises a classification garbage can main body, a classification garbage can sealing top cover and a base, wherein a classification garbage can handle is movably connected to one side of the top of the classification garbage can main body, hidden type cigarette end placing boxes are embedded into the middle of the top of the classification garbage can main body, a hidden drawer is embedded into the bottom of the classification garbage can main body, the bottom end of the classification garbage can main bodyis movably connected with the base, the base can enable the classification garbage can main body to rotate, so that the classification garbage can is more convenient to use, and the flexibility of theclassification garbage can main body is improved; due to the fact that the four cigarette end placing boxes are arranged, the fire caused by the fact that cigarette ends are not extinguished is wellprevented, the safety performance of the classification garbage can is enhanced, the fire prevention capability of the classification garbage can is improved, and the safety of the classification garbage can is embodied; the classification garbage can is convenient to use and suitable for the technical field of environmental protection products, and has a wide development prospect in the future.

The present invention discloses a bank self-service lottery sale system and a method thereof. The system mainly comprises a bank ATM terminal, a lottery purchase front end computer, an ATM bet platform and a hotline bet system. The ATM terminal transmits lottery data input on the ATM terminal by a user to the lottery purchase front end computer; the lottery purchase front end computer gathers the lottery purchase information of the user through the ATM terminal and deducts lottery money amount from a bank card of the user; the lottery purchase front end computer sends the lottery information including user information to the ATM bet platform for betting; the bet information confirmed by the ATM bet platform is returned to the ATM terminal, and the bet information is sent to the hotline bet system; a bet result is displayed by the ATM terminal. The present invention is used to realize electronic lottery transaction and reduce lottery print waste caused by lottery transaction. The bank card bundled with lottery purchase is safe and fast in transaction, simple in purchase and award cashing procedures, monitors every transaction in real time, and has high supervision property.

The invention relates to an elevator traction wheel manufacturing and processing device and a manufacturing method. The elevator traction wheel manufacturing and processing device comprises a base, arotating mechanism, a polishing mechanism, placing tables, a limiting bar, a height adjusting mechanism and a driving mechanism. The base is in a trapezoid structure with the upper end of the front side inclined backwards. A mounting groove is formed in the middle of the base. The rotating mechanism is arranged in the mounting groove. The polishing mechanism is arranged on the upper rear side of the upper end surface of the base. The placing tables are uniformly mounted on the upper end surface of the base. The upper end surfaces of the placing tables and the inclined surface of the base are detachably provided with the limiting bar. The height adjusting mechanism is arranged on the upper end surface of the base and is located on the left and right sides of the upper end surface of the base. The driving mechanism is arranged on the right side of the height adjusting mechanism. The elevator traction wheel manufacturing and processing device and the manufacturing method can solve the problems of incapability of removing burrs on the inner wall of a rope groove of an elevator traction wheel in the existing process of polishing the traction wheel by using a traction wheel polishing machine, and only one elevator traction wheel can be polished at a time.

The invention belongs to the intelligent fire protection emergency lighting and evacuation indication system field and provides a method for automatically generating an evacuation plan through gridding. The method includes the following steps that: 1) a grid composed of polygon cells is drawn; 2) attributes such as ''pass forbidden'', ''channel'' and ''exit'' are set for the cells in the grid, and evacuation channels and exits in a building are described; 3) control points of fire detection devices and fire protection emergency indication lights are dragged onto the cells, so that correlations are established; and 4) evacuation paths between ''channel'' cells and a nearest ''exit'' cell are obtained through a software algorithm, and the ''channel'' cells are set to point to the ''exit'' cell; and 5) an evacuation plan correlated with the fire protection emergency indication lights is generated according to the pointing directions of the ''channel'' cells.

The invention discloses a piercing terminal pressing clamping device, comprising a base and a positioning piece, wherein, a positioning groove is arranged on the base and penetrates through the base from the upper surface to the lower surface, the shape of the positioning groove adapts to the shape of a terminal body, a plurality of main wire casings which are perpendicular to the positioning groove are arranged on the upper surface of the base on one side on which one side wall of the positioning groove is positioned, and the width of each main wire casing adapts to the diameter of a guide line; the positioning piece is arranged on the other upper surface of the side on which the main wire casings are positioned and to which the base corresponds, one lateral end face of the positioning piece is provided with auxiliary wire casings, each auxiliary wire casing and each main wire casing are opposite to and matched with each other on the same plane, a positioning face is arranged on the end of each auxiliary wire casing, and the positioning groove is positioned between the main wire casings and the auxiliary wire casings. The invention has the advantages of low manufacturing cost and easy and pellucid operation of processing method, and can not cause potential safety hazard to operators, etc.