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introduction： 140：The tensile deformation process includes two aspects？ a：Stick degree；Allowable deformation。 141：According to the source and nature of external force correction methods can be divided into several？ big：Divided into flame correction and mechanical correction。 142：There are several kinds of deformation of metal materials？ a：Elastic deformation and plastic deformation。 143：Correction is what kind of deformation of a metal material？ a：Pair plastic deformation。 144：There are several types of heating correction？ a：Full heating and local heating correction。 145：What kinds of correction equipment are commonly used
2015-02-21 Reading quantity 2799
introduction：Although computer aided design system（CAD）Just an aid to the designer，If used properly，It can really improve the accuracy of the graphics，At the same time, the speed of work has been doubled。This fine and quick effect is unmatched by manual painting。For personal use onlyCAXAExperience of，Drawing time is reduced to about one-half to one-third of manual drawing time。In other words，Hand drawing1A picture of time，Can draw now2to3zhang。（Its not representative of anyone else，It doesnt necessarily reach the level of most people）And improve upon、Design drawings for modded types are even faster。How to use it properly
2015-02-21 Reading quantity 2824
introduction：FLH Standard number Standard name 20 SY 5131-1998 Safety regulations for radiation protection in petroleum radioactive logging 20 SY 5225-1994 Oil and gas drilling、exploit、Provisions on the administration of fire prevention and explosion protection in storage and transportation 20 SY/T 5436-1998 Explosive storage for oil perforation and wall coring、Safety regulations for transportation and use 20 SY 5445-1999 Petroleum machinery
2015-02-21 Reading quantity 2888
introduction：(one)．Types of annealing 1． Full annealing and isothermal annealing Full annealing followed by weight crystallization annealing，Generally referred to as annealing，This annealing is mainly used for the casting of various carbon steel and alloy steel with hypoeutectoid composition，Forgings and hot rolled profiles，It is also sometimes used for welding structures。It is often used as the final heat treatment of some unimportant workpieces，Or as a pre-heat treatment for certain workpieces。 2． Spheroidizing annealing Spheroidizing annealing is mainly used for over-eutectoid carbon steel and alloy tool steel（Such as making cutting tools，Measuring tool，The type of steel used in the mold）。Its main purpose is to reduce hardness，Improve machinability
2015-02-20 Reading quantity 1539
introduction： Working principle： The equipment is equipped with a strengthened crushing device，Has low final moisture content of the product、The equipment covers a small area、Low height feature，Suitable for filter cake、paste、With some viscosity、Products requiring the finished product to be powder。 Technical parameter： Model number Evaporation capacity power Floor space Altitude
2015-02-20 Reading quantity 2793
introduction：What are the advantages of manual forklifts 1. maintenance： Hydraulic systems and bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Completely maintenance-free，But in extreme cases，For example, rinse in a humid environment or with a high pressure hose，All bearings are equipped with refueling holes for refueling。 2. tora
2015-02-20 Reading quantity 2751
introduction：There are many kinds of retarders。Commonly used gear and worm reducer according to its transmission and structural characteristics，It can be roughly divided into three categories： (1)Gear reducer mainly has cylindrical gear reducer、Bevel gear reducer and cone—Cylinder gear reducer three kinds。 (2)Worm reducer mainly has cylindrical worm reducer、Circular tooth worm reducer、Taper and worm reducer and worm—Gear reducer, etc。 (3)Planetary gear reducer mainly includes involute planetary gear reducer、Cycloidal pin wheel reducer and harmonic gear reducer, etc。 18.1The main type of commonly used reducer、Features and applications
2015-02-20 Reading quantity 2779
introduction： pick to After the introduction of foreign complete sets of lost mold equipment，The rapid realization of foam mold localization is one of the keys to expand casting output。Heli Group relies on Huazhong University of Science and Technology，There are three stages in the process of implementing foam mold localization。Three years to develop a variety of box casting foam mold，It not only meets the needs of the Group，Also for other domestic and foreign enterprises supporting the production of box castings，Make the lost mold casting continuously exert the benefit。 keyword： Foam mold Box casting Lost die casting introduction Box type castings are more suitable for disappearing
2015-02-20 Reading quantity 2874
introduction：Clutch friction plate burning phenomenon The most intuitive phenomenon of the burning sheet is that the friction material and the main body fall off。The main reasons can be divided into the following points：first，The friction material is not well bonded。The main phenomenon is that part of the friction material remains on the main body after burning the sheet，The chances of that happening are very small，Because the friction sheet manufacturers will fully test the adhesion of the friction sheet before leaving the factory;The second case is that the friction plate can not withstand too much load resulting in friction plate ablation。The main performance is that all friction materials fall off、The appearance is charred and has a burnt taste。There are quite a few factors contributing to this phenomenon，Like overloading.
2015-02-20 Reading quantity 2781
introduction： Air valves Air valve Angle Stop valves Angle stop valve Angle Throttle Valves Angle throttle valve Angle Type Globe Valves Door Angle stop valve Ash valves Ash valve Aspirating valves suction（smoke）Air valve Auxiliary valves subsidiary（vice）valve Balance valves Balance valve
2015-02-20 Reading quantity 2888
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