1308352 _ ' π年 > 月、丨日f a替換頁 八、發明說明： --------- 【發明所屬之技術領域】 • 收集極是—種線型束微波管接收自陰極發射出來電子束的部位，由於 陰極本身高溫的錢動會使轩錢分佈不均勻，加上在錢積處之電子 密度也非紐，因此當電子束通過高頻翻段與電爾產生妓作用後， 會有5· 8_直流功轉化成熱的㈣肖散，此大部分熱能是由電子束 轟擊在收集極_表面而產生。為了讓撞擊在收集極的電子束能量能順利 # 时制，所贿錄式降壓計方式製作《極，並透敬好之電極 設計將收集_由麟触電_能肋收，倾波管上線路的能量使用 總效率(〇咖U efficiency)提高。本發明方法是針對多級降壓式收集極 末端之電極製作技術進行創新。 【先前技術】 -般多級降壓式收無大？朗於行波管(Traveling %ve咖)或速 (Klystron)J, ^ ^US4398122 Multistage depressed collector for microwave tube A US4096409 Multistage depressed collector 已揭不降壓式㈣極在行波管或速調管之顧。此難集極對外銜接電源 的電極是採用貫穿式電極(feedthr〇ugh)，作為各電極從真空側到大氣端的 金屬連接通道。為確保收集極内保持超高真空，收集極本體必須和貫穿電 極使用硬焊(braze)的方法製成一個總體，其中内部導線和貫穿電極的接合 疋在有限的空間内完成，然後再進行與收集極末端焊接，其製作工藝技術 較複雜。另外，貫穿電極本身是由陶瓷及金屬梢（pin)所構成，常會在和收 1308352 月η曰修正替換頁 集極本體焊接的触巾，因多錢爐而受雜漲冷_效應，造成微裂而 破真工甚科軸m —旦上述情雜生之後，微波管敝集極與電 極將不易再祕，因此會f彡響啦產製作的效率。 【發明内容】 本發明方法是將錢極與電極分開製作，電極是·環則狀鐵銘錄 合金(k〇var)，鐵姑鎳合金的成分為銘含量為$17%，錄含量為2⑽，其餘 為鐵含量。其次採时面經過金屬化處理過之雜氧化域緣喊，氧化 銘的成;7為氧她gg6%。兩者之間隔交錯的方式堆疊固定後，精密硬焊的 技術焊接而成單-電極殼。此種電極殼内部中空空問為自收集極引出高壓 鎳導線的通道，並依不同電極之極性以點焊的方式將縫導義定在電極 殼内的環形片上’使得收集極與電極之組裝過程簡化。另外，由於收集電 極本體和電極殼分離，故也可進行單獨檢驗收集極與電極殼之真空度及耐 高電壓特性，零件更換較方便，也有助於收集極使用壽命之延長。 【實施方式】 本發明用於線型束微波管之收集極的電極殼結構如圖一所示，電極是 採用環形鐵钻鎳(kovar)合金金屬片（30, 31，32, 33, 34)，然後分別利用氧化 細兗環⑽，37,38)依序隔開，緊賴定於焊接夾具之上，再以爐硬焊的 方式將電極片與絕緣喊結合而成-組電極殼，其中空的部份是提供給收 集極高壓鎳導線狀通道，高壓錄導線可直接點焊在匕曹環以侧。電 極殼利用氬焊的技術將k〇var金屬環片（30)與收集極本體（丨〇)末端處之氯 ' 月丨丨曰修正替換頁 ^ 卜k_*核(20)接合。電減所賴的祕朗_£财絕緣與耐f顯性， 可耐同電壓五仟伏特以上，而中間厚陶莞環⑽可耐高電應八仔伏特以 上。此外’本發明中電極殼内已預留空間，故可加裝吸氣劑讓整個系統長 時間保持在超高真空狀態。整個微波管經過烘烤過程所產生的游離廢氣可 藉由電極殼末端_氣管㈤接到真轉浦段，持續抽氣制超高真空狀 態。本發明之電極殼和傳統貫穿式電極比較，除可驗封裝時程之外，亦 可提高製作率，對地的耐高壓特性也相對的提高。 _ 驗紅述之電極殼魏_本體錢焊的方式結合之後，再將來自 收集極_的紐鎳導線與電極殼内之鐵__合钟轉接合固定， 即可完成整個收集極的組裝，總成卫件圖如圖二所示。 【圖式簡單說明】 圖一： 電極殼結翻，由難鎳(kQVar)金屬則，氧化細3/8英 时直控通氣銅導官’高壓電簡引線及吸氣劑所構成。1308352 _ ' π年 > Month, next day fa replacement page eight, invention description: --------- [Technical field of invention] • Collector is a kind of linear beam microwave tube received from the cathode In the part of the electron beam, due to the high temperature of the cathode itself, the distribution of Xuan money will be uneven, and the electron density at the money accumulation is also non-new, so when the electron beam passes through the high frequency flip and the electric sputum is generated, There will be 5·8_DC work converted into heat (4) Xiao, which is generated by electron beam bombardment on the collector pole surface. In order to make the electron beam energy hitting the collector pole smooth, the bribe-type buck meter method is used to make the pole, and the well-designed electrode design will collect _ _ _ _ _ _ _ _ _ _ _ _ _ _ The total energy efficiency of the upper line is increased. The method of the present invention is an innovation for electrode fabrication techniques at the end of a multi-stage buck collector. [Prior Art] - As many as the multi-stage buck type? Roughing the traveling wave tube (Traveling %ve coffee) or speed (Klystron) J, ^ ^US4398122 Multistage depressed collector for microwave tube A US4096409 Multistage depressed collector has not revealed the buck (four) pole in the traveling wave tube or klystron . The electrode of the hard-collecting pole externally connected to the power source is a feed-through electrode, which serves as a metal connecting passage for each electrode from the vacuum side to the atmospheric end. In order to ensure an ultra-high vacuum in the collector, the collector body must be brazed with the through-electrode to form a whole, in which the internal wires and the through-electrode joints are completed in a limited space, and then Collecting the end of the welding, the production process technology is more complicated. In addition, the through-electrode itself is composed of ceramics and metal pins. It is often used to repair the contact pads of the collector body of the replacement page collector body at the end of the year 1308352, which is affected by the multi-money furnace. Cracking and breaking the real work, the branch axis is the same. After the above-mentioned mixed feelings, the collector and the electrode of the microwave tube will not be easily re-secreted, so it will make the production efficiency. SUMMARY OF THE INVENTION The method of the present invention is to separate the money electrode from the electrode, the electrode is a ring-shaped iron alloy (k〇var), and the composition of the iron-nickel alloy is an inscription content of $17%, and the recorded content is 2 (10). The rest is iron content. Secondly, the surface of the miscellaneous oxidation zone that has been metallized at the time of mining is shouted, and the oxidation is made; 7 is oxygen gg6%. After the two are stacked in a staggered manner, the precision brazing technique is welded to form a single-electrode shell. The hollow space inside the electrode case is a channel for extracting the high-voltage nickel wire from the collector, and the seam is guided in the ring piece in the electrode case according to the polarity of the different electrodes, so that the assembly process of the collector and the electrode is performed. simplify. In addition, since the collecting electrode body and the electrode case are separated, it is also possible to separately check the vacuum degree and high voltage resistance characteristics of the collector electrode and the electrode case, and the parts replacement is convenient, which also contributes to the extension of the life of the collecting pole. [Embodiment] The electrode shell structure of the collector for the linear beam microwave tube of the present invention is shown in Fig. 1. The electrode is made of a ring-shaped iron diamond nickel (kovar) alloy metal sheet (30, 31, 32, 33, 34). Then, the oxidized fine enthalpy rings (10), 37, 38) are respectively separated by sequentially, and are placed on the welding jig, and then the electrode sheets are combined with the insulation shattering by means of furnace brazing to form a set of electrode shells, wherein The part is provided for collecting extremely high-voltage nickel wire-like channels, and the high-voltage recording wire can be directly spot-welded to the side of the 匕曹环. The electrode shell utilizes argon welding techniques to bond the k〇var metal ring sheet (30) to the chlorine 'lunar correction replacement page ^bk_* core (20) at the end of the collector body (丨〇). The secret of electricity reduction depends on the insulation and resistance to f dominant, can withstand the same voltage above five volts, and the middle thick pottery ring (10) can withstand high electricity should be eight volts above. Further, in the present invention, space has been reserved in the electrode case, so that a getter can be added to keep the entire system in an ultra-high vacuum state for a long period of time. The free exhaust gas generated by the whole microwave tube through the baking process can be connected to the true rotating section by the end of the electrode shell (the fifth tube), and the air is continuously evacuated to form an ultra-high vacuum state. Compared with the conventional through-electrode electrode, the electrode case of the present invention can improve the production rate in addition to the inspection time course, and the high-pressure resistance property against the ground is relatively improved. _ After the combination of the electrode shell Wei_body and the body welding method, the Ni-nick wire from the collector pole and the iron in the electrode shell are spliced and fixed, and the assembly of the entire collector is completed. The assembly guard figure is shown in Figure 2. [Simple diagram of the figure] Figure 1: The electrode shell is turned over, and the hard-to-nickel (kQVar) metal is composed of a 3/8-inch thin-controlled ventilated copper conductor, a high-voltage electric lead and a getter.
將電極殼之金«片與收集極本體末喊之氬焊雜滅整組收集 極之總成圖。 7 月）丨日修正替换頁 1308352 【主要元件符號說明】 10 17,18 20 30, 31，32, 33, 34 35 36,37, 38 收集極本體末端處之氬焊環 高壓電極鎳引線 收集極本體 鐵钻鎮（kovar)金屬環片 3/8英11寸直徑通氣銅導管 氧化鋁陶瓷環 39 吸氣劑The gold film of the electrode shell and the argon welding of the collector body at the end of the collection are destroyed. July) Next day correction replacement page 1308352 [Main component symbol description] 10 17,18 20 30, 31,32, 33, 34 35 36,37, 38 Argon welding ring at the end of the collector body High voltage electrode Nickel lead collector Body iron drill town (kovar) metal ring piece 3/8 inch 11 inch diameter ventilated copper pipe alumina ceramic ring 39 getter