發(fā)布時(shí)間：2019-06-19 19:58

【摘要】：近年來(lái),我國(guó)光通信網(wǎng)絡(luò)規(guī)模正在不斷地?cái)U(kuò)大,光通信網(wǎng)絡(luò)市場(chǎng)也變得越來(lái)越大,對(duì)光纖光纜的需求日益劇增。光纖預(yù)制棒是光纖光纜生產(chǎn)過(guò)程中的最重要的原材料,但是預(yù)制棒制造對(duì)其生產(chǎn)技術(shù)及工藝要求很高,資金投入量大,自行制造預(yù)制棒的成本一直居高不下,因此預(yù)制棒制造技術(shù)基本上長(zhǎng)期被國(guó)外公司所壟斷,導(dǎo)致我國(guó)90%以上的光纖預(yù)制棒需要依靠進(jìn)口,嚴(yán)重阻礙了我國(guó)光通信網(wǎng)絡(luò)的發(fā)展。開(kāi)發(fā)大尺寸預(yù)制棒,發(fā)展我國(guó)光纖預(yù)制棒制造工藝,使國(guó)內(nèi)光纖預(yù)制棒制備新技術(shù)實(shí)現(xiàn)產(chǎn)業(yè)化,推動(dòng)光通信領(lǐng)域的發(fā)展,已成為行業(yè)發(fā)展的重要課題。本論文在分析當(dāng)前國(guó)內(nèi)外光纖預(yù)制棒及其制備技術(shù)現(xiàn)狀的基礎(chǔ)上,提出了采用預(yù)制棒對(duì)接工藝制造大尺寸預(yù)制棒的技術(shù)方案,探究了制作大尺寸預(yù)制棒工藝新思路。重點(diǎn)研究了對(duì)接工藝對(duì)對(duì)接處錯(cuò)位、對(duì)接點(diǎn)氣泡、預(yù)制棒表面的影響及改善方法,從中探索了采用此工藝制備大尺寸預(yù)制棒的有效途徑,提升了光纖拉絲的效率,主要研究?jī)?nèi)容及成果如下:1、制定了詳細(xì)的工藝流程及操作步驟,并在操作步驟中,詳細(xì)列舉了所需的工藝參數(shù),為本次預(yù)制棒對(duì)接工藝開(kāi)發(fā)做好了詳細(xì)的參數(shù)記錄。2、通過(guò)芯層定位技術(shù)、對(duì)接點(diǎn)頭部改善方案以及對(duì)接外徑控制技術(shù)對(duì)芯層錯(cuò)位問(wèn)題進(jìn)行改善;通過(guò)內(nèi)部結(jié)構(gòu)控制技術(shù)改善對(duì)接氣泡問(wèn)題;通過(guò)噴燈位置、氫氧比例、氣體流量大小、火焰停留時(shí)間做多次試驗(yàn)進(jìn)行調(diào)整驗(yàn)證,解決表面白霧問(wèn)題;通過(guò)火焰控制技術(shù),解決對(duì)接水峰問(wèn)題。將預(yù)制棒對(duì)接工藝開(kāi)發(fā)過(guò)程中所遇到的問(wèn)題均一一解決。3、成功開(kāi)發(fā)預(yù)制棒對(duì)接工藝,生產(chǎn)出大尺寸超低水峰的光纖預(yù)制棒,從之前每根棒只能拉制500km光纖,到目前每根棒可以拉制900km光纖,將生產(chǎn)效率提升了21.5%,釋放人工勞動(dòng)強(qiáng)度14%。
[Abstract]:In recent years, the scale of optical communication network in China is expanding, the market of optical communication network is becoming larger and larger, and the demand for optical fiber and optical cable is increasing day by day. Optical fiber prefabricated rod is the most important raw material in the production process of optical fiber and optical cable, but the prefabricated rod manufacturing requires high production technology and process, the amount of capital input is large, and the cost of manufacturing prefabricated rod has been high all the time. Therefore, the prefabricated rod manufacturing technology has been monopolized by foreign companies for a long time, resulting in more than 90% of the optical prefabricated rods in our country need to rely on imports, which seriously hinders the development of optical communication network in our country. The development of large size prefabricated rods and the development of optical fiber prefabricated rod manufacturing technology in China have become an important topic in the development of the industry. The industrialization of new optical fiber prefabricated rod preparation technology and the promotion of the development of optical communication field have become an important issue in the development of the industry. On the basis of analyzing the present situation of optical fiber preform rod and its preparation technology at home and abroad, this paper puts forward the technical scheme of manufacturing large size preform rod by using preform rod docking process, and probes into the new idea of making large size preform rod. The influence and improvement method of docking process on dislocation, bubble and surface of prefabricated rod are studied in detail. The effective way to prepare large size preform rod by this process is explored, and the efficiency of optical fiber wire drawing is improved. the main research contents and achievements are as follows: 1, the detailed technological process and operation steps are worked out, and the required process parameters are listed in detail in the operation step. The detailed parameter records are made for the development of the prefabricated rod docking process. 2, through the core layer positioning technology, the contact head improvement scheme and the docking outer diameter control technology are used to improve the core layer dislocation problem; The problem of docking bubble is improved by internal structure control technology, and the problem of surface white fog is solved by adjusting and verifying the position of sprinkler, the ratio of hydrogen to oxygen, the size of gas flow rate and flame residence time, and the problem of docking water peak is solved by flame control technology. The problems encountered in the development of prefabricated rod docking process are solved one by one. 3, the prefabricated rod docking process is successfully developed, and the optical fiber prefabricated rod with large size and ultra low water peak is produced. From the previous 500km fiber to the 900km optical fiber, the production efficiency is increased by 21.5% and the manual labor intensity is released by 14%.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN929.1

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本文編號(hào)：2502598