Microtherm machines the green function of craft and integrated benefit

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  • source:FINKEL CNC Machining
Graph 1 manufacturing industry and environmental graph sketch map of treatment of 2 low temperature pursues block diagram of system of control of system of treatment of 3 low temperature pursues natural resources of treatment of 4 low temperature uses a model integratedly to pursue the integrated benefit that 5 low temperature machine the pillar industry that 1 overview manufacturing industry is creation mankind wealth of society. Can last what an economy big country assures national economy impossibly without his manufacturing industry development. Meanwhile, people also realises, everything makes those who reach its product use, will with rich use up for premise, and the choice that the use of all production processes and its product and processing will face his to affect effect to the environment. Graph the concern that 1 watch understands meantime: Long-term since, use an environment in order to enlarge development rich and free to develop pattern for the economy of main feature, created tremendous wealth of society on one hand, also caused global modes of life and relation to their environment to destroy on the other hand, pollution of resource shortage, environment, from go up at all weaken the base that shook to Lai Yisheng of modern economy society is put and continue to develop even. This pressing requirement changes traditional development strategy. With respect to manufacturing industry character, cutting machines the main component that is production process, and 16% what the cutting fluid resource that drains in cutting treatment holds spare parts finished cost about, be like what consider cutting fluid again to discharge, reclaim wait for charge, this scale still can increase. On the other hand, cutting fluid still can cause relatively serious pollution, the oily mist that is the generation in cutting fluid use process, water mist, aerosol produce pollution to workshop environment directly; The 2 cutting current that are eduction cause pollution to water natural resources into Jiang He. So, the processing that pollutes to cutting fluid is a very serious problem. And microtherm treatment is the effective method that solves this pollution. The green function that 2 low temperature machine and resource use model low temperature integratedly to machine low temperature of craft brief introduction is to point to use material to be in microtherm (include ultralow temperature) the special function below condition will undertake machining. When microtherm is machined, use body of ultralow temperature current to form local low temperature in the cutting area inside machining system (or ultralow temperature) condition, use the change of the mechanical function that machines object and treatment cutting tool below this kind of condition thereby, make its are helpful for machining. Be opposite especially material of a few difficult treatment, the mild steel of the alloy that be like titanium, low-alloy steel, low carbon and the composite material with a few model particularly strong tenacity treatment position with be formed better. Graph 2 it is what a kind of low temperature processes a system to constitute sketch map. The basic measure that microtherm machines is: According to machining object and the character that machine a tool optimal low temperature machines set temperature Topt; uses microtherm fluid to make specific enclosed the eject capacity that the temperature that machines an area reachs fluid of Topt; automata low temperature, be in in order to maintain the temperature of treatment area Topt condition: On one hand, machine Topt of area temperature deviate when what detect, adjust through feedback controller eject discharge, when treatment system on the other hand power input happening changes, lead of controller of the make a present of before putting through continuously adjusts eject discharge, machine condition in order to maintain optimal low temperature. If the graph is shown 3 times,its control systematic block diagram. The green function that microtherm machines and resource use model low temperature integratedly to machine adoption microtherm liquid to be liquid nitrogen commonly, liquid nitrogen is taken from air, volatilize in use process in returning air, no matter its are produced,still use a process, all incorrect environment causes any pollution, prevented the environmental pollution that cutting fluid place causes. When liquid nitrogen volatilizes, local meeting produces anoxic phenomenon, reason should have screen to machining an area, avoid handlers to suffer an effect. Natural, come compared with groovy treatment, microtherm machined a system to increase two parts premium: The investment that is microtherm equipment partly is expended (include system of screen of area of microtherm container, treatment, control) ; Another part is microtherm liquid spends cost. If we set out from the uses integratedly angle of resource, build the mill around aerobic factory, the waste liquid that uses aerobic plant directly -- the microtherm source that liquid nitrogen regards microtherm as to process a system, and the output such as fluid hydrogen, liquid oxygen is used for him, form resource to be optimized integratedly use a system, of utmost increase resource integrated utilization rate. Return fluid of leave out cutting to supply additionally reach reclaim, reduced resource to use up, reduced the cost that microtherm machines, raise its economy feasibility. If pursue,4 are shown. The Ec in the graph -- the energy that the commutation when cutting is heat energy; Ech -- the energy that cuts bits and workpiece to take away; Eab -- the heat energy that microtherm fluid place draws; Eenv -- the energy that initialization of microtherm treatment system draws. The integrated benefit this shows that 3 low temperature machine, microtherm machines craft to have the following advantage, if pursue,5 are shown. Improve the machining performance of the composite material with certain model particularly strong tenacity. For example the material of high grade alloy that titanium alloy is day of Yu Hang of a kind of wide application and national defence, but the difficult treatment material that is a kind of model, because its plasticity and tenacity are too strong, when treatment fragile cutting tool, finished cost is consequently high, efficiency is low. If be below microtherm condition, its outspread rate is reduced, brittleness increases, treatment function will get very big improvement, raised the durability of cutting tool thereby, reduced manufacturing cost, improved productivity and treatment quality. Reduced resource to use up. Leave out the supply of cutting fluid and reclaim, the waste liquid that uses aerobic plant -- liquid nitrogen, the loop that realized resource is used, reduced finished cost thereby. Reduced environmental pollution. Liquid nitrogen comes from aerobic factory, contaminant does not arise in producing a course, incorrect workshop environment causes pollution in use process, also cause pollution without environment of emission opposite state, protected zoology environment effectively. 4 conclusion executive green is made and cleanness is produced, already was the urgent task that is placed before manufacturing industry, in in order to make time (T) , production quality (Q) , production cost (C) and use service (S) evaluation is made, technology and process while, ask people takes environmental character seriously adequately (E) , tell from some kind of meaning, this is relation mankind " great undertaking of a thousand years " the thing of the descendants, the problem that in studying modern production technology and manufacturing pattern place must give sufficient attention studies seriously. The low temperature that the article raises machines those who be versed in skill realizes resource to optimize use integratedly, reduce environmental pollution effectively, have favorable social beneficial result. On the other hand, can improve productivity and treatment quality, reduce finished cost, have good economic benefits, it is a kind of green treatment technology that has development greatly. CNC Milling