模具设计与制造毕业论文中英文资料外文翻译文献

Mold design and manufacture

The mold is the manufacturing industry important craft foundation in ourcountry the mold manufacture belongs to the special purpose

equipmentmanufacturing industry. China although very already starts to make the mold and theuse mold but long-term has not formed the industry. Straight stabs 0 centuries 80slater periods the Chinese mold industry only then drives into the developmentspeedway. Recent years not only the state-owned mold enterprise had the very bigdevelopment the three investments enterprise the villages and towns individual themold enterprises development also quite rapid . Although the Chinese mold industrial development rapid but compares with thedemand obviously falls short of demand its main gap concentrates precisely tolarge-scale is complex the long life mold domain. As a result of in aspect and so onmold precision life manufacture cycle and productivity China and the

internationalaverage horizontal and the developed country still had a bigger disparity thereforeneeded massively to import the mold every year . The Chinese mold industry except must continue to sharpen the

productivityfrom now on will have emphatically to the profession internal structure adjustmentand the state-of-art enhancement. The structure adjustment aspect mainly is theenterprise structure to the specialized adjustment the product structure to center theupscale mold development to the import and export structure improvement centerthe upscale automobile cover mold forming analysis and the structure improvementthe multi-purpose compound mold and the compound processing and the lasertechnology in the mold design manufacture application the high-speed cutting

thesuperfinishing and polished the technology the information direction develops . The recent years the mold profession structure adjustment and the organizationalreform step enlarges mainly displayed in large-scale precise was complex the longlife center the upscale mold and the mold standard letter development speed is higherthan the common mold product The plastic mold and the compression casting moldproportion increases Specialized mold factory quantity and its productivity increasequotThe three investmentsquot and the private enterprise develops rapidly The joint stocksystem transformation step speeds up and so on. Distributes from the area lookedtake Zhujiang Delta and Yangtze River delta as central southeast coastal areadevelopment quickly to mid-west area south development quickly

to north. Atpresent develops quickest the mold produces the most centralized province isGuangdong and Zhejiang places such as Jiangsu Shanghai Anhui and Shandong alsohas a bigger development in recent years . Although our country mold total quantity had at present achieved the suitablescale the mold level also has the very big enhancement after but design manufacturehorizontal overall rise and fall industry developed country and so on Yu De Americadate France Italy many. The current existence question and the disparity mainlydisplay in following several aspects: 1 The total quantity falls short of demand Domestic mold assembling oneself rate only about 70. Low-grade mold center upscale mold assembling oneself rate only has 50 about . 2 The enterprise organizational structure the product structure the technicalstructure and the import and export

structure does not gather Iin our country mold production factory to be most is from the labor moldworkshop which produces assembles oneself branch factory from producesassembles oneself the proportion to reach as high as about 60 but the overseas moldultra 70 is the commodity mold. The specialized mold factory mostly is quotlarge andcompletequot quotsmall and entirequot organization form but overseas mostly is quotsmall

butquotquotis specially small and finequot. Domestic large-scale precise complex the long lifemold accounts for the total quantity proportion to be insufficient 30 but overseas in50 above 2004 years ratio of the mold import and export is 3.7:1 the import andexport balances the after net import volume to amount to 1.32 billion US dollars isworld mold net import quantity biggest country . 3 The mold product level greatly is lower than the international standard The production cycle actually is higher than the international water broadproduct level low mainly to display in the mold precision cavity aspect and so onsurface roughness life and structure . 4 Develops the ability badly economic efficiency unsatisfactory our countrymold enterprise technical personnel proportion low The level is lower also does not take the product development frequently is inthe passive position in the market. Our country each mold staff average year

creationoutput value approximately ten thousand US dollars overseas mold industrydeveloped country mostly 15 to10000 US dollars some reach as high as 25 to10000US dollars relative is our country quite part of molds enterprises also continues to usethe workshop type management with it truly realizes the enterprise which themodernized enterprise manages few To create the above disparity the reason to be very many the mold long-term hasnot obtained the value besides the history in as the product which should

have as wellas the most state-owned enterprises mechanism cannot adapt the market economy butalso has the following several reasons: . 1 Country to mold industry policy support dynamics also insufficiently Although the country already was clear about has promulgated the moldprofession

industrial policy but necessary policy few carried out dynamics to beweak. At present enjoyed the mold product increment duty enterprise nation 185 themajority enterprise still the tax burden is only overweight. The mold enterprise carrieson the technological transformations introduction equipment to have to pay theconsiderable amount the tax money affects the technology advancement moreoverprivately operated enterprise loan extremely difficult . 2 Talented person serious insufficient the scientific research development andthe technical attack investment too urine Mold profession is the technology the fund the work crowded industry alongwith the time progress and the technical development grasps the talented personwhich and skilled utilizes the new technology exceptionally short the high-qualitymold fitter and the enterprise management talent extremely is also anxious. Becausethe mold enterprise benefit unsatisfactory and takes insufficiently the scientificresearch development and the technical attack the scientific research unit and theuniversities colleges and institutes eye stares at is creating income causes the moldprofession invests too few in the scientific research development and the

technicalattack aspect causes the mold technological development step not to be bigprogresses not quick . 3 The craft equipment level to be low also necessary is not good the use factorlow recent years our country engine bed profession progressed quickly has been ableto provide the quite complete precision work equipment but compared with theoverseas equipment still had a bigger disparity. Although the domestic manyenterprises have introduced many overseas advanced equipment but the overallequipment level low are very more than the overseas many enterprises. As a result ofaspect the and so on system and fund reason introduces the equipment not notnecessary the equipment and the appendix not necessary phenomenon are extremelycommon the equipment utilization rate low question cannot obtain the comparativelyproperly solu.