30results about How to "Extended repair time" patented technology

The invention provides a half joint used for rush repair of a PE water feed pipe. The half joint comprises an upper half sleeve and a lower half sleeve which are symmetrically arranged. One side of the upper half sleeve is hinged to one side of the lower half sleeve; and other side of the upper half sleeve and the other side of the lower half sleeve are each outwards provided with a locking block, the locking blocks can be used for locking the upper half sleeve and the lower half sleeve through a bolt. The inner cylinder walls of two ends are further each provided with an annular groove, wherein the annular grooves are oppositely formed. The half joint further comprises two disconnected sealing rubber rings. One ends of the two sealing rubber rings are fixed to the end face of the other side of the upper half sleeve and are distributed to the two ends of the upper half sleeve, a through hole is formed in the other end of each of the two sealing rubber rings, and the other ends of the two sealing rubber rings can be arranged on a positioning pillar on the end face of the other side of the lower half sleeve in a penetrating manner through the through holes. The end face of the other side of the upper half sleeve is provided with a bearing and inserting hole where the positioning pillar is borne and inserted. When the half joint is not used, the diameter of a whole sealing rubber ring formed after the two ends of the sealing rings are closed is smaller than the inner diameter of a whole sleeve formed after the upper half sleeve and the lower half sleeve are closed. The half joint has the beneficial effects of being good in sealing effect and convenient to install.

The invention discloses a polysiloxane elastomer based on an aryl disulfide bond and an imine bond, and a preparation method thereof. According to the invention, the catalyst of 1,3,5-benzenetricarboxaldehyde, polysiloxane and diaminodiphenyl disulfide are directly cross-linked through a condensation reaction of aldehyde groups and amino groups under the action of a catalyst, and then oxygen is removed from a reaction system, so the two dynamic covalent bonds, i.e., the aryl disulfide bond and the imine bond, are simultaneously introduced into the polysiloxane. The preparation method of the invention prepares the polysiloxane elastomer with excellent self-healing performance and high elongation at break; the polysiloxane elastomer heals itself under the condition of low temperature/room temperature, only needs mild conditions and has a fast healing speed and good effect; and the preparation method is simple in process and easy to control, and raw materials used in the method are all commercially produced products that are cheap and easily available.

The invention provides high-strength self-healing concrete, the high-strength self-healing concrete is prepared from the following raw materials in parts by weight: 100-120 parts of Portland cement, 30-50 parts of water, 10-20 parts of carbon dioxide foaming agents, 20-30 parts of dispersing agents, 55-65 parts of aggregates, 20-30 parts of microbial composites, 20-30 parts of modified fiber compound, 1-3 parts of phenol antioxidants, 1-3 parts of octadecanoic acid and 4-8 parts of modified piperylene petroleum resin, the high-strength self-healing concrete has the advantages that through specific proportions and a specific preparation method, fracture strength and compressive strength are improved to a certain extent, the self-healing capability of the concrete is enhanced, repair time ofthe concrete is prolonged, high durability and compactness are realized, and the strength reversion rate of the repaired concrete is high; in view of the embodiment and proportions, components of thehigh-strength self-healing concrete have synergistic effects, the fracture strength and the compressive strength of the concrete are decreased obviously when some components are replaced, and the reversion rate is reduced obviously.

The invention discloses application of a polysiloxane elastomer based on an aryl disulfide bond and an imine bond as a self-healing material. According to the invention, the catalyst of 1,3,5-benzenetricarboxaldehyde, polysiloxane and diaminodiphenyl disulfide are directly cross-linked through a condensation reaction of aldehyde groups and amino groups under the action of a catalyst, and then oxygen is removed from a reaction system, so the two dynamic covalent bonds, i.e., the aryl disulfide bond and the imine bond, are simultaneously introduced into the polysiloxane. The polysiloxane elastomer with excellent self-healing performance and high elongation at break is prepared in the invention; the polysiloxane elastomer heals itself under the condition of low temperature/room temperature, only needs mild conditions and has a fast healing speed and good effect; and a preparation method for the polysiloxane elastomer is simple in process and easy to control, and raw materials used in themethod are all commercially produced products that are cheap and easily available.

The invention discloses smoothing toner for refining pores and a preparation method thereof, and relates to the field of cosmetics. The smoothing toner for refining pores is prepared from the following raw materials in parts by weight: water, a witch hazel extract, erythritol, lactobionic acid, 10-hydroxydecanoic acid, zinc gluconate, natural moisturizing factors, hydrolyzed collagen, a yeast essence extract, a fagus sylvatica bud extract, 1,2-pentanediol, L-arginine, PEG-20 glyceryl stearate, menthone glyceryl ketal and a preservative. The smoothing toner has the advantages of shrinking pores, resisting oxidation, delaying senescence, inhibiting bacteria and diminishing inflammation. The preparation method of the smoothing toner capable of refining pores comprises the following steps: weighing the raw materials, performing mixing and stirring in proportion, and performing discharging, filling and packaging to obtain a finished product. The method has the advantages of simple operationand easy production.

The invention discloses a connecting device for an insulating operating bar and relates to the connecting field of various appliances which are operated through the insulating bar during maintaining of electric lines in an electric system. The connecting device for the insulating operating bar comprises a spline type end connecting component, two spring type end connecting components, the insulating operating bar and a gear type end connecting component, wherein two adjacent insulating operating bars are connected through one spline type end connecting component and one spring type end connecting component, so that the length of a combined operating bar is increased, connection between bars is simple, the number of carried tools is reduced; one end of the insulating operating rod is connected with the gear type connecting component through the other spring type end connecting component; the gear type end connecting component can be used for connecting a plurality of operating appliances. The connecting device for the insulating operating bar is mainly applied to the maintaining field of electric lines in the power system and solves the problems that the existing operating bar can only be used for one purpose and accordingly the operating bar function is single and the length of the operating bar cannot be changed.

The invention discloses a synchronous motor slip ring surface online repairing device and method, and relates to the technical field of synchronous motor repairing. The repairing device comprises a fixed support, a millstone mounting frame, a millstone, a millstone pressing-in unit and a spring. The fixed support is connected with a brush rod; the millstone mounting frame is mounted on the fixed support; the millstone is mounted on the millstone mounting frame in a penetrating manner; the millstone mounting frame is hinged to the millstone pressing-in unit; the spring is connected between the millstone pressing-in unit and the millstone mounting frame; and the millstone pressing-in unit presses the end face of the millstone on the surface of a slip ring through the spring. During repairing, the repairing device instead of a brush holder of a synchronous motor is installed on the brush rod, the millstone pressing-in unit presses the millstone on the surface of the slip ring through the tension of the spring, the synchronous motor is started, the millstone can polish the surface of the slip ring, and online repairing is achieved. The problem of long consumed time for surface repair of the slip ring of the synchronous motor of the existing finishing mill is solved.

The invention discloses a mobile sensor network connection repairing method aiming at a cutting point fault, which is applied to the technical field of wireless sensor networks and aims at solving the problem of network splitting caused by the network cutting point fault in a mobile sensor network. According to the method, the mobile node combination for executing the repair task is selected for the network splitting caused by the potential network cut point fault by executing the node selection algorithm, and unnecessary movement is reduced through the mobile node elimination algorithm in the movement process; and under special circumstances, a speed reduction cascade movement algorithm is adopted to enable the repair time and the total movement distance to achieve an effect of balancing, and whether all partitions are communicated or not is judged according to a communication progress interaction process, so that the purpose of repairing network splitting is finally achieved.