Construction machinery, which has experienced a lack of strength, has been struggling with market doubts. Although the entire industry did not break out of its potential firepower. However, with the steady economic recovery and improvement of infrastructure construction, the construction machinery industry has also highlighted some signs of recovery. For 2014, we can see that the momentum of the warming of construction machinery is on the verge. Perhaps, this year will have a revolutionary rebound. Because, for the demand of contemporary society and urbanization, the new growth point of construction machinery is already obvious.
The “New Urbanization†boosted the “Decision of the Central Committee of the Communist Party of China on Several Key Issues for Comprehensively Deepening Reforms†reviewed and released by the Third Plenary Session of the 18th Central Committee of the Construction Machinery Industry from the aspects of the reform of the household registration system, the reform of the county, and the investment and financing mechanism for urban construction. The development of urbanization carried out a comprehensive institutional arrangement and deployment, and further proposed that “the new urbanization based on human beings should be promoted.†The top-level design of the central government has triggered a positive response from the market to the concept of “new urbanizationâ€. Lianpei, Sany Heavy Industry, and XCMG may take the lead in benefiting leading machine companies that have pioneered new urbanization.
The continuous warming of policy has brought hope to the construction machinery industry that entered the adjustment period. The industry expects that the demand for cement, sandstone, and concrete that are closely related to it will increase, and the market demand for various types of machinery and equipment will also see new growth. point.
Urban infrastructure or trillions of investment investment Premier Li Keqiang presided over the executive meeting of the State Council on July 31 to study how to promote the government to purchase public services from the social forces and to deploy and strengthen urban infrastructure construction.
All along, urban infrastructure construction has been financed by the government, and operations have also required government subsidies. Private capital is hard to enter. The executive meeting of the State Council this time specifically put forward to encourage private capital to enter the field of infrastructure construction. Xu Shaoshi, director of the National Development and Reform Commission, also stated that it will further implement policies to promote private investment, improve and refine policies in a timely manner, and actively encourage private capital to participate in the restructuring and transformation of financial institutions, and guide private investment into infrastructure, basic industries and public utilities, and urge local governments to The department launched major projects that encourage private investment. Encourage private capital to enter the field of infrastructure construction. On the one hand, it expands the space for development of private capital. On the other hand, it also relieves the pressure of social responsibility undertaken by the government. It is a win-win situation. The availability of funds is an important guarantee for the accelerated pace of the project and a decision for the rebound of the construction machinery market.
Fog and haze weather warning construction machinery to take the road of energy conservation and environmental protection In 2013, a considerable number of cities in China are always under the heavy veil of haze, shy to show their true colors. These pollutants in the air, to a large extent, come from coal-fired power plants and automobile exhausts, which have attracted the attention of Chinese leaders. Therefore, in the future for a long time, energy conservation and environmental protection will become the top priority of social development. As a major industry for energy use, construction machinery should also comply with social development requirements and develop more energy-saving and emission-reducing products to meet more needs.
On August 11 this year, the State Council issued the "State Council's Opinions on Accelerating the Development of Energy-saving and Environmental Protection Industries" (hereinafter referred to as "opinions"), and proposed plans for the development of China's energy-saving and environmental protection industries. It is reported that the energy saving and environmental protection industry will have an output value of more than 4.5 trillion yuan in the future. According to the “Opinionsâ€, the level of remanufacturing technology and equipment will be significantly improved in the future. The state will focus on supporting the establishment of 10-15 national remanufacturing industry clusters and a number of major demonstration projects, and greatly increase the equipment based on surface engineering technology. Application rate.
Turning Parts:
Turning the workpiece in a lathe using the method of cutting tool rotation processing workpiece. Turning processing cutting is mainly composed of workpiece and not provide tools. Turning is the most basic, the most common method of cutting, occupies a very important position in the production. Turning for processing rotary surface, a large part of workpiece with rotating surface turning method of processing can be used, such as the external cylindrical surface, inside and outside the cone face, face, groove, screw and rotary forming surface, the tool is mainly used tools. Turning precision is generally it11-it7, some can reach IT6, surface roughness Ra 12.5-08um. can be achieved by Turning Parts, we call turning parts, there are many kinds of turning parts, most famous is via hard turning to maintain the thermal stability of the parts.
Category:
Based on different facilities(CNC facility) to do the turning process,CNC turning parts included Lathing Parts,milling parts,Grinding Parts;
Basically,we can realise it on different raw material,like copper alloy,steel,and aluminium alloy.
Concerned Factors:
(1) The biggest problem is to use or without cooling liquid. For interrupted cutting parts such as gears, the best use of "dry turning", otherwise the thermal shock feed and withdrawal knife is likely to cause the blade to rupture. As for the continuous cutting knife head, high temperature produced in dry turning process to toughening (softening) the pre cutting area, thereby reducing the hardness of the material to make it easy to cut. This phenomenon shows that the stem cutting speed increase is good. At the same time, no coolant cutting method has obvious cost advantages. (2) Layer whitening whitening scald layer (heat affected zone) "may be a dislike to appear in hard turning and grinding operation, namely in the material surface to form a layer of invisible to the naked eye is very thin (typically 1 m) crust. The formation of albino layer in the hard turning process, usually because of blade Passivation causes too much heat to the inner parts. Often whitening on bearing steel form, and it is very harmful to the bearing ring like need to withstand high contact pressure parts, with the passage of time, the albino layer may stripped and lead to bearing failure.
(3) Machine:stiffness determines precision hard turning. Nearly 15 ~ 20 years of manufacturing machines in the almost all have good rigidity, enough to withstand hard turning. In many cases, the overall condition of the machine is largely over the use of life is more important, the general maintenance The opening of the bed can also be used for hard turning. In order to increase the rigidity and damping characteristics for hard turning machine, hatey characteristics of many advanced machine tool for the machining center, including polymer composites reinforced with a spring clip (the spindle support near the workpiece) is directly matched with the spindle and hydrostatic guideway system. The maximum rigidity means a tool to reduce vacant, and extending parts out, and cancel the adjustable gap plate and gasket, its goal is to keep all parts as close as possible to the turret.
(4) Process:because of the heat generated by hard turning most chips away, before and after the processing of chip inspection You can find the whole process is coordinated. Continuous cutting, the chip should be blazing orange, and like a ribbon like flowing out. If the chip after cooling by hand pressure fracture, shows that cutting heat is normal.
(5) Blade:cubic boron nitride (CBN) inserts the price is expensive, but the most suitable for the hard cutting blade CBN.Cbn blade can keep unchanged in the positioning of intermittent cutting process, to provide a safe tool wear rate in continuous cutting process. When using the hard turning process reasonable, except in the control of CBN blade diameter tolerance is not better than grinding, other properties are second to none.
Turning Parts
Turning Parts,Lathing Parts,Milling Parts,Grinding Parts
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