【正文】 , may suit each kind of black and the nonferrous metal thick sheet processing generally. The life may achieve 525 ten thousand, the production cost is low. 7 molds semifinished materials fast manufacture technology solid casting Because the massive molds are belong to the single unit or the production, the mold semifinished materials manufacture quality and the cycle and the cost to the final mold quality and cyclical and the cost influence are very important. The modern mold semifinished materials widely have used the seeds casting technology, the socalled solid casting is (polystyrene PS either polymethacrylate PMMA) manufactures using the foam plastics replaces traditional the wooden mold or the metal pattern, after the modelling does not have to take out the model, then may the casting, under the foam plastics model high temperature liquid metal function, deflagrate the gasification but to vanish, the molten metal substitution original foam plastics model holds the position, after the condensation forms the casting. 8 other aspects technologies in order to simplify the mold the structural design, 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 edge builtup welding quickly, inlays the block casting, the nitrogen spring and so on. nitrogen springs on mold application The nitrogen spring is one kind of new elastic function part, replaces the 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 basically 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 adjust as necessary, simplifies the mold to stretch, nearby the pressure, exdenning isostructuralism, simplifies the mold design, reduces the pattern making cycle, debugs the mold to be convenient, reduces the replacement mold time, enhances the production efficiency. fast trades the mold technology 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 traded the mold technology to receive people39。 快速經(jīng)濟(jì)制模技術(shù)種類很多，其所具有的特點(diǎn)、應(yīng)用范圍各不相同，本文僅能概括地做一些簡單介紹，每種技術(shù)在具體應(yīng)用和實(shí)施過程中尚 有許多具體的工藝過程、工藝參數(shù)及其技術(shù)特性。目前發(fā)達(dá)工業(yè)國家的一些大公司換模速度達(dá)到了驚人的程度，是否具有快速換模技 3 術(shù)已成為企業(yè)技術(shù)進(jìn)步的一項(xiàng)標(biāo)志?？蛇m合各種黑色和有色金屬的 厚的板料加工。 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)固熔時效處理后，采用冷擠壓制造模具凹模型腔。 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，并給予一定的動能，高速噴射在樣模表面，層層鑲嵌，形成一金屬殼體，即型腔的內(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。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。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小時，節(jié)省能源和金屬材料，一般型腔表面 僅 23mm厚，仿真性極強(qiáng)，花紋精度可達(dá)到 。其特點(diǎn)是制造周期短，型腔精度高 (IT7級 )，表面粗糙度Ra=,強(qiáng)度高，壽命可達(dá) 50萬次，無環(huán)境污染。壽命可達(dá)到 525 萬次，制造成本低?？偟内厔菥褪菧p少模具在設(shè)備上安裝、固定、調(diào)整的時間 ，這既要在設(shè)備結(jié)構(gòu)設(shè)計(jì)上予以考慮，又要在模具的結(jié)構(gòu)設(shè)計(jì)、標(biāo)準(zhǔn)化方面予以考慮，將機(jī)上的作業(yè)盡可能地放在機(jī)下做。 模具是基礎(chǔ)工業(yè)之一，在全球化市場經(jīng)濟(jì)和各種高新技術(shù)的迅猛發(fā)展形勢下，快速經(jīng)濟(jì)模具賦予了新的使命和全新的內(nèi)涵，分類不斷增加，快速經(jīng)濟(jì)制模材料向著多品種系列化邁進(jìn)，工藝不斷有新的創(chuàng)新和突破，與之配套設(shè)備相繼問世，服務(wù)領(lǐng)域在不斷地拓寬，創(chuàng)造的經(jīng)濟(jì)效益越來越顯著。s attention. At present developed industrial nation some big panies traded the mold speed to achieve astonishing degree, whether had fast trades the mold technology to bee for an enterprise technology advancement sign. The always tendency is reduces the mold to install on the equipment, to be fixed, the adjustment time, this both must give in the equipment structural design to consider, and must in the mold structural design, the standardized