1431results about How to "Reduce replacement time" patented technology

A phase change memory and a fabrication method are provided. The fabrication method includes: providing a substrate; forming a heating layer on the substrate; forming a phase change layer on and in contact with one sidewall surface of the heating layer. The phase change memory includes: a substrate; a heating layer on the substrate; and a phase change layer on and in contact with one sidewall surface of the heating layer.

A direct touch type metal diaphragm valve, wherein durability of the valve, that is to say, the ensured number of continuous open/close operations of the valve, is substantially increased under conditions that an appropriate flow rate coefficient Cv is maintained, and changes of the afore-mentioned Cv value over time are mitigated by means of restricting the deformation of the valve seat over time. The afore-mentioned metal diaphragm is formed in a round, reverse-dish shape by laminating a plural number of thin stainless steel plates and a thin Nickel.Cobalt alloy plate, and its center part is bulged upward, and the maximum valve stroke of the valve is regulated to be 55% to 70% of the distance of the maximum bulge height Δh of the afore-mentioned metal diaphragm.

A light-source fixing structure for the backlight module is disclosed. The light-source fixing structure includes: a light guide plate provided with a light-incident surface; a cover having a groove, wherein the groove has a surface facing toward to the light-incident surface of the light guide plate; a light bar arranged upon the surface of the groove. The light bar may be replaced easily by sliding out from the groove when the light bar is damaged. The cover not only may enhance the strength of the backlight module but also may prevent the backlight module over temperature.

A method, a controller, and an optical section include performing an analysis to determine an amount of power offset on any in-service channels in an optical section due to a capacity change with a channel; defining a step size to ensure the capacity change does not exceed an offset limit based on the analysis; performing the capacity change in one or more iterations using the step size to limit the capacity change; and performing an optimization between each of the one or more iterations to adjust amplifier gains in the optical section to compensate for offsets on the in-service channels caused by a previous iteration.

In a work transfer method in a machine tool with a movable spindle, a machined work transfer portion for laying a machined work on a first pallet and for transferring the work is disposed in an upper stage or a lower stage of a non-machined work transfer portion for laying a non-machined work on a second pallet and for transferring the work. Then, the non-machined work pallet is moved between a non-machined work receiving position and a work loading position. The machined work pallet is moved between a machined work sending position and a work unloading position. Thus, the work is received or sent between a chuck and a work transfer apparatus.

The invention relates to a suspension supporting base multi-station progressive die which comprises an upper die assembly, a lower die assembly, an unloading plate, an unloading plate base plate and a mis-feeding detection device. The upper die assembly is sequentially provided with a corresponding male die in the feeding direction, the lower die assembly is sequentially provided with a female die embedding sleeve matched with the male die of the upper die assembly, corresponding positions on the unloading plate and on the unloading plate base plate are provided with a through hole capable of penetrating through the male die of the upper die assembly, the unloading plate is disposed on the unloading plate base plate, and the unloading plate base plate is arranged on the upper die assembly through an unloading spring. By means of the progressive die, suspension supporting bases are produced in a continuous drawing progressive die mode. The mechanism is compact in structure, high in guide precision, stable in unloading and precise in pitch fixing, and feeding and discharging are convenient to achieve. A quick replacement structure is adopted to a punching male die, and maintenance and replacement time of the die is effectively shortened. After being tried, the mechanism is good in use effect and can meet requirements for high efficiency and high precision of stamping production.

Disclosed are a liquid nitrogen freezing system of a high water pressure super-long-distance large-sectional tunnel and a method of quickly changing shield tail brushes. The system comprises a liquid nitrogen storage tank, a main gate valve, a liquid supply pipe, distributors, liquid distributing pipes, freezing pipes, gas colleting pipes, exhaust pipes, a temperature measuring hole and cold discharge pipes. The liquid nitrogen storage tank is connected with the liquid supply pipe provided with the main gate valve. Two branches of the liquid supply pipe are connected with the distributors respectively; each distributor includes 8 to 10 branches, each branch is connected with a group of series freezing pipes through one liquid distributing pipe, each group of last freezing pipes is connected with one gas collecting pipe and is connected with one exhaust pipe through the gas collecting pipe; the exhaust pipes discharge vaporized nitrogen into air; the front ends of the cold discharge pipes are connected with the liquid distributing pipes, and the their tail ends are connected with the gas collecting pipes. The method of quickly changing the shield tail brushes is further provided. The system and the method are suitable for the projects of quickly changing the shield tail brushes for the high water pressure super-long-distance large-sectional tunnels; the system and the method have the advantages such as high forming speed of a frozen wall, high strength, no toxicity or pollution, safety and reliability in use, and convenience in construction.

A memory cell for an electrically writeable and erasable memory medium as well as a memory medium thereof is provided. The memory cell comprises a data recording element, the data recording element has a plurality of multiple-layer structure disposed one on top of another, each the multiple-layer structure comprising a plurality of sequentially disposed individual layers. At least one of the plurality of individual layers is capable of changing phase between a crystalline state and an amorphous state in response to an electrical pulse, one of the plurality of individual layers having at least one atomic element which is absent from other one of the plurality of individual layers, and the plurality of multiple-layer structure is of a superlattice-like structure to lower a heat diffusion out of the data recording element to shorten a phase change time of the respective individual layers.

Multi-station pipe end machining equipment comprises a base and a cutter saddle, and is characterized in that the cutter saddle consists of a fixing plate and a cutter head, the fixing plate is vertically arranged, the cutter head is rotatably connected onto the fixing plate, a plurality of cutters are peripherally mounted on the cutter head, a pipe fitting clamping device is further disposed in front of the cutter saddle and comprises a worktable provided with at least two stations, a mold is arranged on each station and provided with a mold cavity, and a main driving device capable of driving the cutter saddle to linearly move towards or far away from the worktable is further disposed on the framework. Compared with the prior art, the multi-station pipe end machining equipment has the advantages that multiple cutters with different functions can be mounted at one step and can be changed only by rotating the cutter head, the trouble that the cutter needs to be changed for each machining procedure is avoided, cutter replacement time is saved, and machining efficiency is improved; and the worktable with the multiple stations is disposed at the front of the framework, multiple pipe fittings can be synchronously machined, utilization rate of the equipment is increased, and the requirement on integrated machining is met.

The invention relates to an electropneumatic braking method and an electropneumatic braking system with fault complementation control on the basis of single-axis control, which is characterized in that two independent embedded type electropneumatic braking units are adopted, and each unit comprises a control circuit, a piezoelectric relay valve, a piezoelectric ventilation valve and a corresponding pressure sensor; the two units are managed by a communication and management circuit and arranged near a steering frame; and two axles on the same steering frame are controlled by the two embedded type electropneumatic braking units respectively. The method and the system can greatly reduce the volume of a cylinder and a pipeline by directly controlling a single braking cylinder, and have the advantages of rapid control response, high precision and good safety.