塑料模具設(shè)計(jì)與制造畢業(yè)設(shè)計(jì)的外文翻譯

1、<p><b>　　模具設(shè)計(jì)與制造</b></p><p>　　模具是制造業(yè)的重要工藝基礎(chǔ)，在我國，模具制造屬于專用設(shè)備制造業(yè)。中國雖然很早就開始制造模具和使用模具，但長期未形成產(chǎn)業(yè)。直到20世紀(jì)80年代后期，中國模具工業(yè)才駛?cè)氚l(fā)展的快車道。近年，不僅國有模具企業(yè)有了很大發(fā)展，三資企業(yè)、鄉(xiāng)鎮(zhèn)（個(gè)體）模具企業(yè)的發(fā)展也相當(dāng)迅速。 </p><p>　　雖然中國模

2、具工業(yè)發(fā)展迅速，但與需求相比，顯然供不應(yīng)求，其主要缺口集中于精密、大型、復(fù)雜、長壽命模具領(lǐng)域。由于在模具精度、壽命、制造周期及生產(chǎn)能力等方面，中國與國際平均水平和發(fā)達(dá)國家仍有較大差距，因此，每年需要大量進(jìn)口模具。 </p><p>　　中國模具產(chǎn)業(yè)除了要繼續(xù)提高生產(chǎn)能力，今后更要著重于行業(yè)內(nèi)部結(jié)構(gòu)的調(diào)整和技術(shù)發(fā)展水平的提高。結(jié)構(gòu)調(diào)整方面，主要是企業(yè)結(jié)構(gòu)向?qū)I(yè)化調(diào)整，產(chǎn)品結(jié)構(gòu)向著中高檔模具發(fā)展，向進(jìn)出口結(jié)構(gòu)的改進(jìn)，

3、中高檔汽車覆蓋件模具成形分析及結(jié)構(gòu)改進(jìn)、多功能復(fù)合模具和復(fù)合加工及激光技術(shù)在模具設(shè)計(jì)制造上的應(yīng)用、高速切削、超精加工及拋光技術(shù)、信息化方向發(fā)展。 </p><p>　　近年，模具行業(yè)結(jié)構(gòu)調(diào)整和體制改革步伐加大，主要表現(xiàn)在，大型、精密、復(fù)雜、長壽命、中高檔模具及模具標(biāo)準(zhǔn)件發(fā)展速度高于一般模具產(chǎn)品；塑料模和壓鑄模比例增大；專業(yè)模具廠數(shù)量及其生產(chǎn)能力增加；“三資”及私營企業(yè)發(fā)展迅速；股份制改造步伐加快等。從地區(qū)分布來看

4、，以珠江三角洲和長江三角洲為中心的東南沿海地區(qū)發(fā)展快于中西部地區(qū)，南方的發(fā)展快于北方。目前發(fā)展最快、模具生產(chǎn)最為集中的省份是廣東和浙江，江蘇、上海、安徽和山東等地近幾年也有較大發(fā)展。 </p><p>　　雖然我國模具總量目前已達(dá)到相當(dāng)規(guī)模，模具水平也有很大提高，但設(shè)計(jì)制造水平總體上落后于德、美、日、法、意等工業(yè)發(fā)達(dá)國家許多。當(dāng)前存在的問題和差距主要表現(xiàn)在以下幾方面：</p><p>　　

5、（1）總量供不應(yīng)求 </p><p>　　國內(nèi)模具自配率只有70%左右。其中低檔模具供過于求，中高檔模具自配率只有50%左右。 </p><p>　?。?）企業(yè)組織結(jié)構(gòu)、產(chǎn)品結(jié)構(gòu)、技術(shù)結(jié)構(gòu)和進(jìn)出口結(jié)構(gòu)均不合理 </p><p>　　我國模具生產(chǎn)廠中多數(shù)是自產(chǎn)自配的工模具車間（分廠），自產(chǎn)自配比例高達(dá)60%左右，而國外模具超過70%屬商品模具。專業(yè)模具廠大多是“大而全

6、”、“小而全”的組織形式，而國外大多是“小而專”、“小而精”。國內(nèi)大型、精密、復(fù)雜、長壽命的模具占總量比例不足30%，而國外在50%以上。2004年，模具進(jìn)出口之比為3.7:1，進(jìn)出口相抵后的凈進(jìn)口額達(dá)13.2億美元，為世界模具凈進(jìn)口量最大的國家。</p><p>　　（3）模具產(chǎn)品水平大大低于國際水平，生產(chǎn)周期卻高于國際水平 </p><p>　　產(chǎn)品水平低主要表現(xiàn)在模具的精度、型腔表面

7、粗糙度、壽命及結(jié)構(gòu)等方面。 </p><p>　?。?）開發(fā)能力較差，經(jīng)濟(jì)效益欠佳 </p><p>　　我國模具企業(yè)技術(shù)人員比例低，水平較低，且不重視產(chǎn)品開發(fā)，在市場(chǎng)中經(jīng)常處于被動(dòng)地位。我國每個(gè)模具職工平均年創(chuàng)造產(chǎn)值約合1萬美元，國外模具工業(yè)發(fā)達(dá)國家大多是15～20萬美元，有的高達(dá)25～30萬美元，與之相對(duì)的是我國相當(dāng)一部分模具企業(yè)還沿用過去作坊式管理，真正實(shí)現(xiàn)現(xiàn)代化企業(yè)管理的企業(yè)較少。

8、 </p><p>　　造成上述差距的原因很多，除了歷史上模具作為產(chǎn)品長期未得到應(yīng)有的重視，以及多數(shù)國有企業(yè)機(jī)制不能適應(yīng)市場(chǎng)經(jīng)濟(jì)之外，還有下列幾個(gè)原因： </p><p>　?。?）國家對(duì)模具工業(yè)的政策支持力度還不夠 </p><p>　　雖然國家已經(jīng)明確頒布了模具行業(yè)的產(chǎn)業(yè)政策，但配套政策少，執(zhí)行力度弱。目前享受模具產(chǎn)品增值稅的企業(yè)全國只有185家，大多數(shù)企業(yè)仍舊

9、稅負(fù)過重。模具企業(yè)進(jìn)行技術(shù)改造引進(jìn)設(shè)備要繳納相當(dāng)數(shù)量的稅金，影響技術(shù)進(jìn)步，而且民營企業(yè)貸款十分困難。 </p><p>　?。?）人才嚴(yán)重不足，科研開發(fā)及技術(shù)攻關(guān)投入太少 </p><p>　　模具行業(yè)是技術(shù)、資金、勞動(dòng)密集的產(chǎn)業(yè)，隨著時(shí)代的進(jìn)步和技術(shù)的發(fā)展，掌握并且熟練運(yùn)用新技術(shù)的人才異常短缺，高級(jí)模具鉗工及企業(yè)管理人才也非常緊張。由于模具企業(yè)效益欠佳及對(duì)科研開發(fā)和技術(shù)攻關(guān)重視不夠，科研

10、單位和大專院校的眼睛盯著創(chuàng)收，導(dǎo)致模具行業(yè)在科研開發(fā)和技術(shù)攻關(guān)方面投入太少，致使模具技術(shù)發(fā)展步伐不大，進(jìn)展不快。 </p><p>　?。?）工藝裝備水平低，且配套性不好，利用率低 </p><p>　　近年來我國機(jī)床行業(yè)進(jìn)步較快，已能提供比較成套的高精度加工設(shè)備，但與國外裝備相比，仍有較大差距。雖然國內(nèi)許多企業(yè)已引進(jìn)許多國外先進(jìn)設(shè)備，但總體的裝備水平比國外許多企業(yè)低很多。由于體制和資金等

11、方面的原因，引進(jìn)設(shè)備不配套，設(shè)備與附件不配套現(xiàn)象十分普遍，設(shè)備利用率低的問題長期得不到較妥善的解決。 </p><p>　?。?）專業(yè)化、標(biāo)準(zhǔn)化、商品化程度低，協(xié)作能力差 </p><p>　　由于長期以來受“大而全”“小而全”影響，模具專業(yè)化水平低，專業(yè)分工不細(xì)致，商品化程度低。目前國內(nèi)每年生產(chǎn)的模具，商品模具只占40%左右，其余為自產(chǎn)自用。模具企業(yè)之間協(xié)作不暢，難以完成較大規(guī)模的模具成

12、套任務(wù)。模具標(biāo)準(zhǔn)化水平低，模具標(biāo)準(zhǔn)件使用覆蓋率低也對(duì)模具質(zhì)量、成本有較大影響，特別是對(duì)模具制造周期有很大影響。 </p><p>　　（5）模具材料及模具相關(guān)技術(shù)落后 </p><p>　　模具材料性能、質(zhì)量和品種問題往往會(huì)影響模具質(zhì)量、壽命及成本，國產(chǎn)模具鋼與國外進(jìn)口鋼材相比有較大差距。塑料、板材、設(shè)備性能差，也直接影響模具水平的提高。 </p><p>　　隨著

13、全球經(jīng)濟(jì)的發(fā)展，新的技術(shù)革命不斷取得新的進(jìn)展和突破，技術(shù)的飛躍和發(fā)展已經(jīng)成為推動(dòng)世界經(jīng)濟(jì)增長的重要因素。市場(chǎng)經(jīng)濟(jì)的不斷發(fā)展，促使工業(yè)產(chǎn)品越來越向多品種、小批量、高質(zhì)量、低成本的方向發(fā)展，為了保持和加強(qiáng)產(chǎn)品在市場(chǎng)上的競(jìng)爭力，產(chǎn)品的開發(fā)周期、生產(chǎn)周期越來越短，于是對(duì)制造各種產(chǎn)品的關(guān)鍵工藝裝備——模具的要求越來越苛刻。 一方面企業(yè)為追求規(guī)模效益，使得模具向著高速、精密、長壽命方向發(fā)展；另一方面企業(yè)為了滿足多品種、小批量、產(chǎn)品更新?lián)Q代

14、快、贏得市場(chǎng)的需要，要求模具向著制造周期短、成本低的快速經(jīng)濟(jì)的方向發(fā)展。計(jì)算機(jī)、激光、電子、新材料、新技術(shù)的發(fā)展，使得快速經(jīng)濟(jì)制模技術(shù)如虎添翼，應(yīng)用范圍不斷擴(kuò)大，類型不斷增多，創(chuàng)造的經(jīng)濟(jì)效益和社會(huì)效益越來越顯著。  快速經(jīng)濟(jì)制模技術(shù)與傳統(tǒng)的機(jī)械加工相比，具有制模周期短、成本低、精度與壽命又能滿足生產(chǎn)上的使用要求，是綜合經(jīng)濟(jì)效益比較顯著的一類制造模具的技術(shù)，概括起來，有以下幾種類別。   1

15、快速原型制造技術(shù) 快速原型制造技術(shù)簡稱RPM，是80年代后期發(fā)展起來的一種新型制造技術(shù)。美國、日本、英國、以色列、德國、中國都推出了自己的商業(yè)化產(chǎn)品，并逐漸形成了新</p><p>　　電弧噴涂成型制模技術(shù)  電弧噴涂成型技術(shù)的原理是：利用2根通電的金屬絲之間產(chǎn)生電弧的熱量將金屬絲熔化，依靠高壓氣體將其充分霧化，并給予一定的動(dòng)能，高速噴射在樣模表面，層層鑲嵌，形成一金屬殼體，即型

16、腔的內(nèi)表面，再用充填基體材料(一般為金屬粉粒與樹脂的復(fù)合材料)加以支撐加固，提高其強(qiáng)度和剛性，連同金屬模架組合成模具。這種制模技術(shù)工藝簡單、成本低，制造周期非常短，型腔表面的成型僅需幾個(gè)小時(shí)，節(jié)省能源和金屬材料，一般型腔表面僅2-3mm厚，仿真性極強(qiáng)，花紋精度可達(dá)到0.5μm。 目前該技術(shù)被廣泛地用于飛機(jī)、汽車的內(nèi)飾件模具、家電、家俱、制鞋、美術(shù)工藝品等表面形狀復(fù)雜及花紋精細(xì)的各種聚氨酯制品的吹塑、吸塑、PVC注射、PU發(fā)泡及

17、各類注射成型模具中。     電鑄成型技術(shù) 電鑄成型技術(shù)的原理同電鍍一樣，是依樣模(現(xiàn)成制品或按制品圖紙制成的母模)為基準(zhǔn)(陰極)，置放在電鑄液中(陽極)，使電鑄液中的金屬離子還原后一層一層地沉積在樣模上，形成金屬殼體，將其剝離后，與樣模接觸的表面即為模具的型腔內(nèi)表面。該技術(shù)主要特點(diǎn)是節(jié)省材料、模具制造周期短，電鑄層硬度可達(dá)40HRC，提高了耐磨性和壽命，粗糙度</p>

18、;<p>　　型腔表面精細(xì)花紋成型的蝕刻技術(shù)蝕刻技術(shù)是光學(xué)、化學(xué)、機(jī)加工綜合應(yīng)用的一種技術(shù)，它的基本原理是先把花紋圖案制成膠片，再把膠片上的花紋圖案復(fù)制在已涂上光敏材料的模具型腔表面上，經(jīng)過化學(xué)處理，模具型腔表面形成不被蝕刻部分的保護(hù)層，再根據(jù)模具材質(zhì)，選擇相應(yīng)蝕刻工藝，將花紋圖案蝕刻在模具內(nèi)表面上。  該技術(shù)的主要特點(diǎn)是時(shí)間短、費(fèi)用低，修補(bǔ)破損花紋圖案可做到天衣無縫。</p><

19、p>　　3澆鑄成型制模技術(shù)澆鑄成型制模技術(shù)的共同特點(diǎn)是依樣件為基準(zhǔn)，澆鑄出凸、凹模，型腔表面不需要機(jī)械加工。</p><p>　　4擠壓成型技術(shù)   利用鈹銅合金的良好的導(dǎo)熱性和穩(wěn)定性，經(jīng)固熔時(shí)效處理后，采用冷擠壓制造模具凹模型腔。其特點(diǎn)是制造周期短，型腔精度高(IT7級(jí))，表面粗糙度Ra=0.025μm,強(qiáng)度高，壽命可達(dá)50萬次，無環(huán)境污染。該技術(shù)是利用金屬材料在細(xì)化晶粒、

20、一定成型溫度、低變形速率條件下，材料具有最佳超塑性時(shí)，將事先制作好的凸模，用較小的力便可擠壓出凹模的一種快速經(jīng)濟(jì)制模技術(shù)。超塑成型材料的典型代表是Zn-22%AL。   5無模多點(diǎn)成形技術(shù)  無模多點(diǎn)快速成形技術(shù)是以CAD/CAM/CAT技術(shù)為主要手段，利用計(jì)算機(jī)控制高度可調(diào)基本體群形成上下成形面，代替?zhèn)鹘y(tǒng)模具對(duì)板料進(jìn)行三維曲面成形的又一現(xiàn)代先進(jìn)制造技術(shù)。此項(xiàng)技術(shù)可以隨意改變變形路徑與受

21、力狀態(tài)，提高材料的成形極限，可反復(fù)成形，以此消除材料內(nèi)部的殘余應(yīng)力，實(shí)現(xiàn)無回彈成形。    6凱維朗(KEVRON)鋼帶沖裁落料制模技術(shù)  新型鋼帶沖裁落料制模技術(shù)是一種不同于一般具有凸、凹模結(jié)構(gòu)的鋼帶模，它是由單刃鋼帶與特制墊板組成的新型快速經(jīng)濟(jì)制模技術(shù)。這種模具重量輕，一般只有200kg，加工精度為 ±0.35-0.50mm，可適合各種黑</p>

22、;<p>　　Mold Design and Manufacture</p><p>　　The mold is the manufacturing industry important craft foundation, in our country, the mold manufacture belongs to the special purpose equipment manufacturi

23、ng industry. China although very already starts to make the mold and the use mold, but long-term has not formed the industry. Straight stabs 0 centuries 80's later periods, the Chinese mold industry only then drives

24、into the development speedway. Recent years, not only the state-owned mold enterprise had the very big development, the three in</p><p>　　Although the Chinese mold industrial development rapid, but compares

25、with the demand, obviously falls short of demand, its main gap concentrates precisely to, large-scale, is complex, the long life mold domain. As a result of in aspect and so on mold precision, life, manufacture cycle and

26、 productivity, China and the international average horizontal and the developed country still had a bigger disparity, therefore, needed massively to import the mold every year .</p><p>　　The Chinese mold ind

27、ustry except must continue to sharpen the productivity; from now on will have emphatically to the profession internal structure adjustment and the state-of-art enhancement. The structure adjustment aspect, mainly is the

28、enterprise structure to the specialized adjustment, the product structure to center the upscale mold development, to the import and export structure improvement, center the upscale automobile cover mold forming analysis

29、and the structure improvement, the multi</p><p>　　The recent years, the mold profession structure adjustment and the organizational reform step enlarges, mainly displayed in, large-scale, precise, was comple

30、x, the long life, center the upscale mold and the mold standard letter development speed is higher than the common mold product; The plastic mold and the compression casting mold proportion increases; Specialized mold fa

31、ctory quantity and its productivity increase; "The three investments" and the private enterprise develops rapidly; The join</p><p>　　Although our country mold total quantity had at present achieved

32、 the suitable scale, the mold level also has the very big enhancement, after but design manufacture horizontal overall rise and fall industry developed country and so on Yu De, America, date, France, Italy many. The curr

33、ent existence question and the disparity mainly display in following several aspects:</p><p>　　(1) The total quantity falls short of demand </p><p>　　Domestic mold assembling one rate only, abou

34、t 70%. Low-grade mold, center upscale mold assembling oneself rate only has 50% about.</p><p>　　(2) The enterprise organizational structure, the product structure, the technical structure and the import and

35、export structure does not gather</p><p>　　In our country mold production factory to be most is from the labor mold workshop which produces assembles oneself (branch factory), from produces assembles oneself

36、the proportion to reach as high as about 60%, but the overseas mold ultra 70% is the commodity mold. The specialized mold factory mostly is "large and complete", "small and entire" organization form,

37、but overseas mostly is "small but", "is specially small and fine". Domestic large-scale, precise, complex, the long life mold accounts </p><p>　　(3) The mold product level greatly is lowe

38、r than the international standard</p><p>　　The production cycle actually is higher than the international water broad product level low mainly to display in the mold precision, cavity aspect and so on surfac

39、e roughness, life and structure.</p><p>　　(4) Develops the ability badly, economic efficiency unsatisfactory our country mold enterprise technical personnel proportion low</p><p>　　The level is

40、lower, also does not take the product development, and frequently is in the passive position in the market. Our country each mold staff average year creation output value approximately, ten thousand US dollars, overseas

41、mold industry developed country mostly 15 to10, 000 US dollars, some reach as high as 25 to10, 000 US dollars, relative is our country quite part of molds enterprises also continues to use the workshop type management wi

42、th it, truly realizes the enterprise which the </p><p>　　To create the above disparity the reason to be very many, the mold long-term has not obtained the value besides the history in as the product which sh

43、ould have, as well as the most state-owned enterprises mechanism cannot adapt the market economy, but also has the following several reasons: .</p><p>　　(1) Country to mold industry policy support dynamics a

44、lso insufficiently</p><p>　　Although the country already was clear about has promulgated the mold profession industrial policy, but necessary policy few, carried out dynamics to be weak. At present enjoyed t

45、he mold product increment duty enterprise nation 185; the majority enterprise still the tax burden is only overweight. The mold enterprise carries on the technological transformations introduction equipment to have to pa

46、y the considerable amount the tax money, affects the technology advancement, moreover privately opera</p><p>　　(2) Talented person serious insufficient, the scientific research development and the technical

47、attack investment too urine </p><p>　　Mold profession is the technology, the fund, the work crowded industry, along with the time progress and the technical development, grasps the talented person which and

48、skilled utilizes the new technology exceptionally short, the high-quality mold fitter and the enterprise management talent extremely is also anxious. Because the mold enterprise benefit unsatisfactory and takes insuffici

49、ently the scientific research development and the technical attack, the scientific research unit and the univer</p><p>　　(3) The craft equipment level to be low, also necessary is not good, the use factor lo

50、w </p><p>　　Recent years our country engine bed profession progressed quickly, has been able to provide the quite complete precision work equipment, but compared with the overseas equipment, still had a bigg

51、er disparity. Although the domestic many enterprises have introduced many overseas advanced equipment, but the overall equipment level low are very more than the overseas many enterprises. As a result of aspect the and s

52、o on system and fund reason, introduces the equipment not necessary, the equipment an</p><p>　　(4) Specialization, standardization, commercialized degree low, the cooperation ability </p><p>　　B

53、ecause receives "large and complete" "small and entire" the influence since long ago, mold specialization level low, the specialized labor division is not careful, the commercialized degree is low. At

54、 present domestic every year produces mold, commodity mold minister 40% about, other for from produce uses for oneself. Between the molds enterprise cooperates impeded, completes the comparatively large-scale mold comple

55、te task with difficulty. Mold standardization level low, mold standard letter u</p><p>　　(5) To the mold manufacture cycle) the mold material and the mold correlation technology fall.</p><p>　　T

56、he mold material performance, the quality and the variety question often can affect the mold quality, the life and the cost, the domestically produced molding tool steel and overseas imports the steel products to compare

57、 has a bigger disparity. Plastic, plate, equipment energy balance, also direct influence mold level enhancement.</p><p>　　Along with the global economy development, the new technological revolution made the

58、new progress and the breakthrough unceasingly, the technical leap development already becomes the important attribute which the impetus world economics grew. The market economy unceasing development, urges the industry p

59、roduct more and more to the multi- varieties, high grade, the low cost direction to develop, in order to maintain and strengthens the product in market competitive power, product development cycl</p><p>　　1

60、Fast prototype manufactures technology </p><p>　　The fast prototype manufacture technology is called RPM, is one kind of new manufacture technology which the 80's later period develops. US, Japan, Englan

61、d, Israel, Germany, China have all promoted own commercialization product, and has formed the new industry gradually. RPM is the computer, the laser, the optical scanning, the advanced new material, the computer-aided de

62、sign (CAD), the computer assistance processing (CAM), the numerical control (CNC) synthesizes the application the high technol</p><p>　　2 Surfaces take shape the pattern making technology </p><p&g

63、t;　　The surface takes shape the pattern making technology, mainly is the use spurts spreads, the electrolytic casting, chemistry corrosion and so on the new technique formation cavity surface and the fine pattern one kin

64、d of craft technology, in the practical application including following several kind of types.</p><p>　　Electric arcs spurt spread take shape the pattern making technology The electric arc spurts spreads ta

65、kes shape the technical principle is: Has the electric arc quantity of heat using between 2 circular telegrams tinsel to melt the tinsel, depends upon the compressed gas its full atomization, and gives the certain kineti

66、c energy, high speed sprays in the type mold surface, layer upon layer mounts, forms a metal shell, namely the cavity internal surface, uses to fill the substrate material again</p><p>　　Electrolytic casting

67、s take shape the technology The electrolytic casting takes shape the technical principle to be same with the galvanization, is according to model the mold (ready-made product or female mold which makes according to produ

68、ct blueprint) is the datum (negative pole), places in the electrolytic casting fluid (anode), causes in the electrolytic casting fluid the metallic ion to return to original state a latter place deposition on the type mo

69、ld, forms the metal shell, after strips </p><p>　　Cavities surfaces fine pattern takes shape etching technology The etching technology is optics, chemistry, the machining synthesis application one kind of t

70、echnology, its basic principle is makes first the pattern design the film, then in has spread the film on pattern design duplication the photosensitive material on the mold cavity surface, process chemistry processing, t

71、he mold cavity surface does not form by the etching partial protectors, then acts according to the mold material quality, t</p><p>　　3 Sprinkle to cast into the type system mold technique</p><p>

72、;　　Sprinkling to cast into technical and common characteristics of the type system mold is according to the kind piece for basis, sprinkle a convex and cave mold, a surface do not need the machine to process. Make physic

73、ally to mainly have following several categories type in the mold.</p><p>　　4 Extrusions takes shape the technology </p><p>　　Using the beryllium copper alloy good thermal conductivity and the

74、stability, after the solid melt aging treatment of metal, use the swaging pressure to make the mold concave model cavity. Its characteristic is makes the cycle short, the cavity precision is high (the IT7 level), surface

75、 roughness Ra=0.025 mu m, the intensity is high, the life may reach 500,000 times, does not have the environmental pollution. This technology is using the metal material in the thin crystal grain, certainly takes </p&

76、gt;<p>　　5 Do not have the mold multi- spots forming technology</p><p>　　Does not have the mold multi- spots fast forming technology is by CAD/CAM/CAT The technology is the main method about, may adju

77、st the base main body group highly using the computer control to form forms the surface, replaces the traditional mold to carry on the three dimensional curved surface forming to the sheet an modern advanced manufacture

78、technology. This technology may change the distortion way and the stressful condition at will, enhances the material the formed limit, may form repeatedl</p><p>　　6 Triumphant Uygur bright steel belt blankin

79、g falls the material pattern making technology </p><p>　　The new steel belt blanking falls the material pattern making technology is one kind is different with has raised, the concave mold structure steel be

80、lt mold generally, it is with specially makes the new fast economical pattern making technology by the single edge steel belt which the backing strip is composed. This kind of mold weight is light, only then 200kg, the p

81、rocessing precision for ±0.35-0.50mm, may suit each kind of black and the non-ferrous metal 0.5-0.65mm thick sheet processing gene</p><p>　　7 Molds semi finished materials fast manufacture technology so

82、lid casting </p><p>　　Because the massive molds are belong to the single unit or the production, the mold semi finished materials manufacture quality and the cycle and the cost to the final mold quality and

83、cyclical and the cost influence are very important. The modern mold semi finished materials widely have used the seeds casting technology, the so-called solid casting is (polystyrene PS either polymethacrylate PMMA) manu

84、factures using the foam plastics replaces traditional the wooden mold or the metal pattern, aft</p><p>　　8 Other aspects technologies </p><p>　　In order to simplify the mold the structural desig

85、n, reduces the mold cost, reduces the mold manufacture cycle, in domestic and foreign also successively appeared some other aspects new technology application, like trades the mold frame, the ramming unit, the cutting ed

86、ge built-up welding quickly, inlays the block casting, the nitrogen spring and so on.</p><p>　　Nitrogen springs on mold application The nitrogen spring is one kind of new elastic function part, replaces the

87、spring, the rubber, the polyurethane or the air cushion with it side, it can accurately provide presses the strength, then may have the greatly initial ball pressure in the small space, does not need pre- tightly, is bas

88、ically hit the pressure basically in the mold entire work process to be constant. The ball pressure size and the working point position may, accurate, conveniently adju</p><p>　　Fast trades the mold technolo

89、gy Because product variety increasing, causes the mold in the production the transmutation extremely frequently, how thereupon reduces the ramming equipment the down time, enhances the production efficiency, fast trade

90、d the mold technology to receive people's attention. At present developed industrial nation some big companies traded the mold speed to achieve astonishing degree, whether had fast trades the mold technology to becom

91、e for an enterprise technology adva</p><p>　　Ramming units’ combination technology The ramming unit combination technology is dies a resolve into each one simple unit the convention to die, according to the

92、working procedure request, the arrangement combination, completes the many kinds of ramming working procedure when the identical inferior stroke the new craft equipment, the work the ramming unit not with the punch press

93、 slide joint, only needs the slide attack then to complete the ramming work. When independent employment it is 1 compl</p><p>　　May process the plastic in mold manufacture application May process the plasti

94、c to be common in the developed industrial nation application, specially in manufacturing industry and so on automobile, airplane, mainly replaces the lumber or the metal manufacture automobile body host model, the prof

95、ile, examines has and the casting model and so on. May process the plastic the main characteristic is has both the lumber and the metal fine workability, the manufacture craft simple and direct (may us</p><p&g

96、t;　　The mold is one of foundation industries, in the globalization market economy and under each kind of high technology and new technology swift and violent development situation, the fast economical mold has entrusted

97、with the new mission and the brand-new connotation, the classification increases unceasingly, the fast economical pattern making material turns towards the multi- varieties serration to make great strides forward, the cr