2results about How to "Reduce intensity differences" patented technology

The invention discloses a method for regulating and controlling anisotropy of a 2195 aluminum-lithium alloy based on an in-situ precipitated icosahedral quasicrystal phase, belongs to the technical field of regulation and control of anisotropy of the 2195 aluminum-lithium alloy, and aims to solve the problem of anisotropy of mechanical properties of the 2195 aluminum-lithium alloy. The method comprises the following steps: carrying out solution treatment on a 2195 aluminum-lithium alloy blank; preheating the blank subjected to solid solution treatment, and spraying a lubricant on the surface of the blank; the preheated blank is heated to the deformation temperature, and heat preservation is conducted; and the blank obtained after heat preservation is subjected to multi-direction forging, and the final deformation of the blank reaches the nominal accumulated strain. An icosahedral quasicrystal T2 phase is precipitated in situ in the multidirectional forging process, the average diameter of the phase is 52-71 nm, dislocation coplanar slippage is inhibited through an Orowan bypassing mechanism, and therefore the anisotropy of the alloy is reduced. The method can be used for improving the mechanical property anisotropy of the 2195 aluminum-lithium alloy, and theoretical guidance is provided for manufacturing weak-anisotropy 2195 aluminum-lithium alloy components.

A kind of auxiliary device for disassembling piston ring belongs to piston ring installation tool technical field, including the first handle and second handle of first connecting shaft rotation connection, first handle, second handle are respectively fixedly connected with one strutting arm by second connecting shaft, first handle and second handle are connected with two strutting arms by slide bar;Slide bar includes the vertical horizontal bar portion and vertical bar portion, the head of vertical bar portion is fixedly connected with horizontal bar portion, horizontal bar portion is slidably connected with two second connecting shafts, the middle part of vertical bar portion is slidably connected with first connecting shaft;Two strutting arms are slidably connected with the tail of vertical bar portion by one connecting rod.Horizontal bar portion and the sliding connection of second connecting shaft, can make the action of handle synchronous transmission to two strutting arms, reduce the intensity difference of two sides strutting arms;The sliding connection of vertical bar portion and first connecting shaft and connecting rod, further guarantee the stability of device in the process of movement, so that piston ring can realize symmetrical opening and closing.