40results about How to "Damage will not occur" patented technology

The invention relates to a testing device for resin matrix composite material hot mold pressing curing deformation and a manufacturing and using method thereof. The testing device comprises resin matrix composite material prepreg and FBG sensors arranged in the prepreg. The method comprises the steps that the FBG sensors are laid on the nth layer in the fiber axial direction to be used as strain sensors, reference sensors for temperature compensation are laid on the nth layer or the (n+1)th layer or the (n-1)th layer, lead grooves are formed in a mold side wall frame board, the mold side wall frame board is coated with a high temperature resistance polymer film, leads of the sensors are led out of the lead grooves and connected with a signal receiver, a mold is closed, hot press molding is carried out, and curing forming on-line real-time monitoring is achieved. The problems that during composite material heat mold pressing curing deformation monitoring, grid regions are fragile and prone to breakage, and monitoring signals cannot be effectively transmitted if leading is inappropriate in a closed full-rigid hot mold pressing mold are solved, and meanwhile the problem that a composite material structure part with built-in FBG sensors is hard to break away from the full-rigid mold is solved.

The invention relates to a control method of solar clothes charging current, which comprises the following steps that: detecting outputted power of a solar battery; detecting dischargeable quantity and electromotive force of a built-in battery; detecting chargeable quantity and electromotive force of an external battery; solving power balance equations set; and charging the external battery according to the calculated charging current of the external battery. The invention also relates to a control device of the solar clothes charging current, which comprises a detection module, a calculation module and a charging module. Due to the adoption of the control method and the control device, the external battery can be charged within a minimal time.

The invention discloses a waterproof thermal insulated quilt used in light greenhouse booth, belonging to greenhouse booth thermal insulated technique. The invention is characterized in that preparing felt layer, preparing upper and lower thermal insulated layers and fixing the upper and lower thermal insulated layers to obtain a light greenhouse waterproof thermal insulated quilt formed by a waterproof membrane layer, a non-woven cloth layer, upper and lower felt sheets with a strength bar layer between, an air insulated layer, a lower felt sheet, a strength bar layer, an upper felt sheet, and a non-woven cloth layer. The invention can insulate water, seal and confirm transparence, and improve thermal insulation, with low cost, low weight, corrosion resistance, non-pollution and recycle property.

The invention discloses neutral oil and rust removing detergent used for agreeing with the coating pretreatment production takt and a preparation method and relates to the technical field of metal surface oil and rust removing treatment. The neutral oil and rust removing detergent used for agreeing with the coating pretreatment production takt and the preparation method comprise the following components including, by weight percentage, 5-25% of inorganic salt, 20-40% of organic acid, 5-15% of chelate, 1-5% of surface active agent, 0.5-5% of corrosion inhibitor and the balance water. Accordingto the neutral oil and rust removing detergent, the oil and rust removing speed is high, the existing production takt is not influenced, in the coating application, on the premise of not increasing investment of large equipment or not changing the existing production takt, an original degreasing agent is directly replaced by the neutral oil and rust removing detergent, the existing degreasing working procedure is compatible with the rust removing function, the pretreatment appearance of a metal piece and the appearance of paint films are improved greatly, the adhesive force and the corrosion resisting performance of the paint films are improved remarkably, and the whole coating quality is improved.

The invention relates to vehicle fitting flywheel shell automatic treatment equipment and a flywheel shell automatic treatment process. The equipment comprises a chassis, a positioning device and a cleaning device; the positioning device is mounted at the upper end of the chassis; and the cleaning device is mounted at the right end of the chassis. The equipment can solve the difficulties of difficult achievement of the positioning precision in traditional clamping of flywheel shells, difficult clamping of the flywheel shells by traditional clamping equipment due to higher weight of the flywheel shells, surface damage of the flywheel shells caused by easy looseness during machining, capability of machining different positions of the flywheel shells through renewed clamping of the flywheel shells by persons, halfway cleaning of iron chips attached in the flywheel shells through a manual mode, long consumed time, high labor intensity and low working efficiency, and can achieve automatic positioning and cleaning functions of the flywheel shells.

The invention relates to a hinge for a window or a door in which a bearing block (22) is attached to the frame and a hinge sleeve (36) is attached to the wing, wherein the bearing block (22) and the hinge sleeve (36) are swivelably connected together by way of a bearing pin (1), wherein the bearing pin (1) is held rotationally fixed in at least one bearing boss (23, 24) of the bearing block (22),wherein the bearing pin (1) has a cross sectional shape that deviates from a circular shape and wherein a sleeve (37) made of elastic material can be placed in the hinge sleeve (36) in rotationally fixed fashion. In order to simplify the manufacture of a non-cylindrical bearing pin that can be attached rotationally-fixed relative to the bearing block, it is provided that the bearing pin (1) has apolygonal multi-edged cross section at least in the area of the length section associated with the hinge sleeve (36) and the bearing block (22).

The method to resist Zinc solution corrosion comprises: cover a piece of soft fabric that resists to Zinc solution corrosion and 480-960Deg and composes a plurality of oxides on the steel product surface to insulate the product from Zinc solution. This invention overcomes defects in prior art, reduces difficulty and cost, and benefit to Zn cooker and inner-dip heater.

The invention discloses an electrician training testbed simulation method and system. The method comprises the following steps of: modeling a laboratory environment, a test table structure and all thecircuit principal models of an electrician training testbed so as to obtain a simulation model of the electrician training testbed; setting the simulation model, and establishing a scene setting module, a scene display module and a scene operation module of the simulation model so as to obtain a simulation model capable of selecting circuit principles; and verifying the obtained simulation modelto obtain a correct simulation model. The method and system are supplemented with existing entity equipment, do not generate dangerous situations in simulation software, do not cause equipment damagein using processes, and do not need to be arranged and maintained after teaching, and can complete online teaching and management. The method is simple, rapid and convenient to use.

The invention relates to the field of hard surface photomask base plate manufacture and the field of optical glass finishing, in particular to a bearing cleaning apparatus and an assembling method applied to the process of manufacturing a hard surface photomask base plate. The bearing cleaning apparatus is manufactured by assembling a notch frame (a1) and guiding positioning rods (a2), wherein the notch frame (a1) is formed by positioning and connecting a notch plate (b1) and a rib plate (b3) through a fixing piece, and the left side and the right side of the notch plate (b1) are provided with a mirror symmetrical slot (c1) and a bottom strip slot (c2) vertically running through the symmetrical slot (c1); and the ends of the left side and the right side of the notch plate (b1) are provided with guide holes (k1) for positioning and mounting the guide positioning rods (a2). The bearing cleaning apparatus has good universality and is flexible and convenient, the whole body is difficult to deform, the phenomenon of water flow blockage cannot appear in the cleaning process, and the cleanliness and the operation efficacy of workpieces can be improved effectively.

The invention discloses an automobile spare part machining mold which comprises a lower mold and an upper mold opposite to the lower mold. A punching air cylinder is arranged above the upper mold. Anoutput shaft of the tail end of the punching air cylinder is arranged in a manner of penetrating the center of the upper mold. A punching head is arranged below the output shaft. A punching groove isformed in the center of the lower mold and located under the punching head. A discharging hole is formed below the punching groove. A baffle is arranged between the punching groove and the discharginghole. A rectangular channel is arranged in the axial direction of the right side of the lower mold. A telescopic air cylinder is arranged on the right side of the lower mold. A telescopic shaft at the tail end of the telescopic air cylinder extends into the channel. A clamp groove with the width matched with that of the baffle is formed in the tail end of the telescopic shaft. The baffle can slide left and right relative to the punching groove. Compared with the prior art, the automobile spare part machining mold of the scheme cannot generate any impact damage, and the problem that chippingsare inconvenient to remove in an existing punching mold is solved; and meanwhile, structure manufacturing is simple, manual machining and assembling are convenient, the production cost is low, and useby operation workers is convenient.

The invention relates to an equipment control method and device and a storage medium, and belongs to the technical field of electronics. The method comprises the steps of: receiving starting signals of a target device; obtaining compensation duration, wherein the compensation duration is used for offsetting the delay of a voltage zero crossing point detected by a voltage zero crossing point detection assembly; and when a zero crossing point signal is received, controlling a specified device in the target equipment to be turned on or turned off after the compensation duration, wherein the zerocrossing point signal is a signal sent by the voltage zero crossing point detection assembly when detecting a voltage zero crossing point. The problems that the heating device is easy to damage and the service life of target equipment is shortened when the heating device is controlled to be started at a position far away from a voltage zero-crossing point can be solved; because the actual voltagezero-crossing point can be determined, the specified device is controlled to be turned on or off at the actual voltage zero-crossing point, so that no impact current is generated to damage the specified device; and meanwhile, the precision of controlling the specified device can be improved, and the interference of opening and closing of the specified device on other equipment is reduced.

The invention relates to a multi-sensor parallel type force value measuring method, which comprises the following steps of: 1, selecting a test press machine of which the output force value is matched with the measuring range of a single force sensor to apply pressure to the single force sensor, and calculating an elasticity coefficient k of the force sensor according to the deformation height after the force sensor is pressed and the pressure applied to the force sensor; 2, selecting at least four force sensors with the same elasticity coefficient for pressure detection of a press machine to be tested, vertically arranging the force sensors in parallel, and adjusting the heights of the top force bearing points of the force sensors to be consistent; and 3, applying pressure to the top force bearing points of the force sensors by a pressure head of the press machine to be tested through a force transmission plate. The technical problem that in the prior art, when more than three force sensors are used in parallel, uniform stress of all the force sensors cannot be guaranteed is solved.

The invention belongs to the technical field of health examination, and particularly relates to health examination equipment and a classification database thereof. The health examination equipment comprises a box body, a spring, a buckle block, a supporting pipe, a physical examination module, a height gauge, a data transmission module and a physical examination database; a top plate is mounted at the top end of one side wall of the box body; and a display module is mounted at the top end of the top plate. According to the health examination equipment and the classification database thereof, the health examination equipment not only can be rapidly disassembled, is regulated in mounting height, is suitable for different users and is convenient to carry, cannot be damaged in the carrying process, is wide in application range and convenient to use in various places, but also can upload physical examination information to the network in real time, compare with network information, and obtains an optimal processing scheme through artificial intelligence, so that effective suggestions are provided for improving the body health of detected personnel.

The invention relates to a grinding disc device for a grinding apparatus of manual operation. The grinding disc device comprises a grinding disc. The bottom of the grinding disc is provided with a grinding sheet which is connected to the grinding disc by means of hasps. On the grinding disc, the hasps are locked and only extend on a part of the bottom face contacting with the grinding sheet.

The invention discloses a spring compression conveying device. The spring compression conveying device comprises a bottom frame and conveying mechanisms, wherein the two conveying mechanisms are oppositely arranged, each conveying mechanism is composed of a flat conveying section and an arc section which are not provided with baffles, and a plurality of stand columns are arranged in each flat conveying sections and each arc section. According to the spring compression conveying device, firstly, the stand columns are arranged to replace original baffles, and the conveying belts / conveying chains are in point contact with the stand columns, so that the friction resistance generated in the moving process of the conveying belts / conveying chains is reduced, and the conveying belts / conveying chains are prevented from being damaged due to excessive friction; secondly, the stand columns are arranged to replace original belt wheels / chain wheels, so that the structure is simplified, no corresponding matching relation exists, and the situation that the conveying belts / conveying chains are stuck is avoided; and finally, the stand columns are arranged along arcs, the compression distance is obviously reduced compared with inclined straight edge compression, the length of a compression section is reduced, meanwhile, the tensioning effect of the stand columns on the conveying belts / conveying chains can be effectively improved, the possibility that the conveying belts / conveying chains fall off from the stand columns can be reduced, and the stability is improved.