45results about How to "Reduce popping" patented technology

The invention provides a cast-in-situ hollow floor with pores formed by a reticular box-shaped component. The cast-in-situ hollow floor comprises a reinforced concrete girder or a profile steel girder, a reinforced concrete ribbed beam, an upper flange plate, a lower flange plate and the reticular box-shaped component, wherein the reticular box-shaped component comprises a box roof, a box body and a box bottom; the box roof is compounded with cement mortar, polyfoam or a panel; the box body and the box bottom are made of reticular bodies; each reticular body comprises a reticular plate, a reinforcing rib and a connecting net, which constitute an integral structure with mutual effect; each of the reinforcing ribs is V-shaped; the reticular box-shaped component comprises at least two reticular bodies; at least two structural slopes are arranged at the corner parts between the box bottom and the box body of the reticular box-shaped component; the reticular bodies of the reticular box-shaped component are made of a steel material or a molding material. The cast-in-situ hollow floor with the pores formed by the reticular box-shaped component adopts the unsealed reticular box-shaped component to substitute the existing fully-sealed hollow fillers and solid fillers as the cast-in-situ hollow floor pore-forming technology. The cast-in-situ hollow floor with the pores formed by the reticular box-shaped component is favorable to realization of building and energy conservation integration and the multifunctional floor.

A pop-free single-ended output class-D amplifier includes: an input signal generator for generating an input signal; a power supply for supplying input power; a reference voltage generator for generating a reference voltage; a gain-adjustable stage for generating an amplified signal according to the reference voltage and adjusting a gain of the single-ended output class-D amplifier; a pulse width modulation module for outputting a pulse width modulation signal according to the reference voltage, the amplified signal, and the input power; a low-pass filter for low-pass filtering the pulse width modulation signal to generate an output voltage; and a logic controller for generating at least one control signal to control the reference voltage generator, the gain-adjustable stage, and the pulse width modulation module according to the input power, the reference voltage, and the pulse width modulation signal.

The invention relates to a comprehensive utilization method of dust and mud in steelmaking process, which is specifically a spheroiditic slagging agent production process. The invention comprises the following steps: drying dust and mud in the open, adding 2-6% burnt lime and 0.5-1% adhensive to the mud to produce mixture, sending the mixture to agitator to intimate mixing, sending the mixture to roller to be pulverized fully, sending it to pelletizer to produce green-ball of phi20-phi30mm size by roll-type briquetting process in presure of 40-60KN, processing green-ball in jigging screen to get green-ball end product on sifter and sliver as return material under sifter and sending green-ball to tower furnace via charging system to be adglutinate and get end product.

The invention discloses a zipper head passing machine for zippers. The zipper head passing machine for zippers has the scheme that the zipper head passing machine comprises a machine frame, wherein azipper belt conveying assembly, a zipper head conveying assembly, a zipper belt notch detection assembly and a zipper head passing assembly are arranged on the machine frame; the zipper head conveyingassembly comprises a zipper head vibration blanking disc and a zipper head guide slide rail; the tail end of the zipper head guide slide rail is provided with a single zipper head pushing-out assembly; the zipper head passing assembly comprises a horizontal belt guide plate, and also comprises a belt clamping assembly, a zipper belt separating assembly and a zipper head installing assembly; the single zipper head pushing-out assembly is used for conveying the zipper heads to the zipper head installing assembly; the zipper belt conveying assembly drags the zipper belts to be conveyed in the horizontal direction; the horizontal belt guide plate is horizontally and glidingly arranged on the machine frame; the zipper head passing assembly also comprises a horizontal driving assembly; throughthe zipper head passing on the zipper belt in the horizontal direction, the energy consumed in the zipper head passing process is reduced; the efficiency is favorably improved; the influence by gravitational acceleration is reduced; the vibration is reduced; and the use stability of the machine is improved.

The invention discloses a solution cleaning type air purifier. For the purposes of reducing requirements on a power part and increasing the surface contact area of air with a solution, the solution cleaning type air purifier comprises a machine case, filter screens, a fan, air guide tubes, a mounting frame, the solution and silencing cotton. When being started, the fan sucks the air through a hole net of the mounting frame, and the air is pressed to the bottom of the solution through the air guide tubes after air pressure is generated; as the air guide tubes are densely arranged, the air is divided into a plurality of small bubbles, and the contact area of the air with the solution is increased; and the air passes through the filter screens after being cleaned by the solution, and is further filtered through the filter screens in different types, and as the air cleaned by the solution is cleaner, the requirement on the filter screens is lowered. After the design is used, the air purifier can specially adsorb a target toxic substance, and thus the ability of purifying the air is improved, the concentration of PM2.5 particulate matters is lowered, and the purpose of efficiently cleaning the air in a silencing manner is achieved.

The invention discloses a drying method for lentinus edodes. The drying method comprises the steps of material selection and classification, cleaning for removing impurities and drying treatment for lentinus edodes. According to the drying method, the steps are reasonably matched, and the prepared lentinus edodes is pure in color, strong in flavor and good in appearance and quality. Compared with the existing drying technology, the formaldehyde content of the dried lentinus edodes can be reduced by about 40%, and the reconstitution properties are good, the time for soaking with cold water is only 8-12 minutes, and the mouthfeel is good.

The invention relates to a moxibustion product, in particular to a moxibustion patch with various moxibustion modes and a filtering function, and aims to provide a moxibustion patch product which is capable of reducing harms of moxa smoke to human bodies, reducing environment pollution and giving full play to moxibustion efficacies and is convenient to use, low in cost and available to large-scaleproduction and application.

The invention relates to an integrated digestion colorimetric pool used for digestion reaction of a sample and receiving of light rays in spectrum colorimetric analysis. The integrated digestion colorimetric pool is an integrated pipe formed by sequentially connecting and continuously communicating a longitudinal upper pipe, a transverse pipe and a longitudinal lower pipe, wherein the transverse pipe is also used as an optical channel; plane light inlet windows are respectively arranged on the pipe walls at the both ends of the optical channel; a pipe diameter of the integrated pipe is less than the length of the transverse pipe; an upper end opening of the longitudinal upper pipe and a lower end opening of the longitudinal lower pipe are thread ports; and internal diameters of the two longitudinal pipes are reduced at the positions of the ports. Compared with the straight pipe type digestion pool, a total volume of the three digestion colorimetric pools can be obviously reduced; the pressure resistance is high; the trail amount is small; a solution flows inside a pipe inside the pool without residue; the digestion reaction is complete; and the detection precision is high.

The invention provides a cast-in-situ hollow floor with pores formed by a combined reticular box-shaped component. The cast-in-situ hollow floor comprises a reinforced concrete girder or a profile steel concrete girder, a reinforced concrete ribbed beam, an upper flange plate, a lower flange plate and the combined reticular box-shaped component, wherein the combined reticular box-shaped component comprises a box roof, a box body and a box bottom; the box body and the box bottom are made of reticular bodies; reinforcing ribs of the reticular bodies are vertically placed; each reticular body comprises a reticular plate, the reinforcing rib and a connecting piece, which constitute an integral structure; the lower flange plate is directly compounded with the reticular bodies at the box bottom of the combined reticular box-shaped component. The cast-in-situ hollow floor with the pores formed by the combined reticular box-shaped component adopts the unsealed combined reticular box-shaped component to substitute the existing fully-sealed hollow fillers and solid fillers as the cast-in-situ hollow floor pore-forming technology. The cast-in-situ hollow floor with the pores formed by the combined reticular box-shaped component is beneficial to realization of energy conservation integration of a building and the multifunctional use of hollow floor.

A coating composition is used to form a film on a substrate. The coating composition includes a polyester, a cross-linking agent reactive with the polyester, and a solvent package substantially free of hazardous air pollutants. The solvent package includes a first solvent, a second solvent, and a third solvent. The first, second, and third solvents in the solvent package have boiling points of less than 300° F., of from 300° F. to 340° F., and of greater than 340° F., respectively. The first, second, and third solvents are also present in amounts of from 10 to 25 parts, of at least 50 parts, and of from 5 to 20 parts, by weight, per 100 parts by weight of the solvent package, respectively. The first, second, and third solvents improve properties of the coating composition and of films formed from the coating composition.

The invention discloses a forming die for a large television backplane. The forming die comprises an upper die and a lower die, wherein the upper die comprises an upper cover plate, an upper block, an upper die base and an upper die plate which are fixedly connected in sequence from top to bottom; the lower die comprises a lower supporting plate, a lower block, a lower die base, a lower cushion block and a clamping plate which are fixedly connected in sequence from bottom to top; the centre of the upper die plate is sunken upwards to form a hollow and arc-shaped cavity; the clamping plate is provided with a first raising puncher, a second raising puncher, a third raising puncher and a fourth raising puncher on positions just below the cavity; and parts raised by the first raising puncher, the second raising puncher, the third raising puncher and the fourth raising puncher during die closing, of the backplane, are a first raised bump, a second raised bump, a third raised bump and a fourth raised bump respectively. The forming die disclosed by the invention is capable of reducing a phenomenon of raised bump burst, thus greatly increasing the forming yield of the raised bumps; and moreover, an S-shaped structure with a certain R angle is formed on the bent sectioned surface of the backplane, the bent sectioned surface is not liable to crack during shaping pulling, and the backplane is high in forming quality, low in industrialization cost, and convenient for increasing economic benefits.

The invention discloses copper-containing sludge granulating and pre-drying equipment and a process method. The equipment comprises an elevator, a stabilizing bin, a front stock bin, a pre-watering stirrer, a rear stock bin, a granulator and the like, wherein an integrated stock bin weighing device is arranged on the front stock bin, and a pneumatic valve is arranged at the bottom of the front stock bin; the pre-watering stirrer is capable of realizing stirring and scattering, an atomizing nozzle is arranged above the interior of the pre-watering stirrer and connected with a water supply device so as to realize accurate water distribution, and an upper level gage and a lower level gage are arranged on the rear stock bin; and materials are conveyed among the rear stock bin, the granulator and a drying and screening device through a belt conveyor. The method disclosed by the invention comprises the following steps: accurately distributing water for the mixed powder, fully stirring the materials in a three-dimensional stirring manner, and forming waterborne and uniform wet materials within 3 minutes. Pellets with consistent particles can be prepared, the stacking porosity is improved during sintering, the phenomenon that the pellets are burst due to non-uniform internal and external heating is greatly reduced, the phenomenon of non-uniform kiln section ventilation is greatly reduced, and heat wasted due to evaporation of the moisture can be reduced by 300-400 KJ/kg.

The invention relates to the technical field of ceramic decal, in particular to small film decal paper not prone to cracking and as well as a preparation method and use method of the small film decal paper. The small film decal paper comprises backing paper, water-based varnish and alcohol-soluble cover oil printed on the backing paper and further comprises water-based decal glue used in a matched mode, the water-based varnish contains 37%-45% of water-soluble polyacrylate, the alcohol-soluble cover oil contains 20%-30% of alcohol-soluble decal glue, and the water-based decal glue contains 23%-27% of dimethyl silicone oil, 23%-27% of glycerinum, 23%-27% of ethyl alcohol and/or isopropyl alcohol and the like. Through the synergistic effect of the water-based varnish, the alcohol-soluble cover oil and the auxiliary matched water-based decal glue, and through a specific preparation technology and the use method, the decal can be tightly combined with a ceramic clay blank during decal, the probability of cracking in the firing process is reduced to the maximum extent, the cracking rate is reduced to 3% or below, during decal, the decal can be moved and is not prone to wrinkling or blistering, and the components are more environment-friendly.

The invention relates to the technical field of chain grate machines, and discloses a chain grate machine tail thermal field adjusting device. The chain grate machine tail thermal field adjusting device comprises a chain grate machine chamber, the chain grate machine chamber communicates with a ring cold machine through a rotary kiln, the ring cold machine is connected with a drum-dry dust removerthrough a pipeline, the drum-dry dust remover is connected with a drum-dry draught fan through a drum-dry draught fan hot air pipeline, an adding cold air valve is installed on the drum-dry draught fan hot air pipeline, and the drum-dry draught fan is connected with a first backheating draught fan through a pipeline. According to the chain grate machine tail thermal field adjusting device, the adding cold air valve is additionally arranged on the drum-dry draught fan hot air pipeline, so that the thermotechnical use ratio of a chain grate machine is reasonably distributed and an environmentalstate of the machine tail of the chain grate machine is improved, after the adding cold air valve is installed, a thermotechnical state of a primary operating line is effectively supplied, and the burst phenomenon of pellets is reduced; and the qualification rate of the pellets is improved.

The invention provides a voice drive circuit for reducing sonic boom when switching on and shutting down, comprising a reference voltage generating unit, a low-pass filtering unit and a drive unit, wherein the reference voltage generating unit is used for generating a reference voltage; the low-pass filtering unit is a low-pass filter which has at least two stages and is used for generating a filtered reference voltage after receiving the reference voltage; and the drive unit is used for receiving an frequency input signal and the filtered reference voltage, and generating an frequency output signal. The low-pass filter with two stages or more than two stages of the low-pass filtering unit is used for controlling variable quantity of the corresponding reference voltage when switching on and shutting down so as to reduce sonic boom when switching on and shutting down.

The invention discloses an anti-explosion remote-transmission pressure meter. The anti-explosion remote-transmission pressure meter comprises an anti-explosion box body, wherein the anti-explosion boxbody is formed by combining a bottom plate and a cover plate, a partition plate is arranged on the cover plate, the anti-explosion box body is divided into a first installation cavity and a second installation cavity from top to bottom by the partition plate, a first observation window and a second observation window which are corresponding to the first installation cavity and the second installation cavity are formed in the partition plate, an electronic pressure meter display module is arranged in the first installation cavity, a wireless transmission module connected with the electronic pressure meter display module is arranged in the second installation cavity, a first cover door is arranged on the partition plate by a first hinge piece and is used for covering the first observation window, the first cover door comprises a first door frame, the first door frame is connected with the first hinge piece, a first anti-explosion glass plate is arranged on the first door frame and is transparent, a second cover door is arranged on the partition plate by a second hinge piece and is used for covering the second observation window, and a plurality of through pipes are arranged on the anti-explosion box body. The anti-explosion remote-transmission pressure meter has the characteristic of good anti-explosion performance.