1249512 五、發明說明（1) 【發明所屬之技術領域】 本發明係關於一種微型陶瓷坩堝之製造方法，尤指一 利用粉末射出成形予以製造坩堝元件之嶄新設計者。 【先前技術】 按，目前常見之坩堝製造方法中，乃有一種如公告號 第486453號所示「超薄壁陶瓷坩堝的製造方法」，詳觀該 專利前案所揭者可知，其主要係製造一石膏模為模具，然 後將陶瓷粉、水及分散劑依適當比例盛裝於容器混合後倒 入石膏模的模穴内，再使石膏模上下翻轉後，讓多餘的泥 漿流出，即可於模穴内形成薄薄的一層，待乾涸成形後再 令石膏模翻轉回來，修整模穴口之多餘陶瓷胚料後，再翻 轉石膏模使其模穴朝下，而石膏模内之坩堝胚體則因乾燥 後體積收縮而自動掉落，復將坩堝胚料放入燒結爐中進行 燒結即可成形。 詳觀該種製造方法實不難以發覺其尚存有些許不足之 處，主要原因係歸納如下： 1 ·由於石膏模具之使用壽命不長，常常使用到一段時 間之後即無法再使用，故需時常更新模具，相對提高製造 成本。 2.習用之製造方式主要係利用石膏模上下翻轉，讓多 餘的泥漿流出而於模穴内形成薄薄的一層，待其乾涸之後 即可直接成形；然而，該種利用重力之方式使多餘泥漿流 出之方式，常因陶瓷粉、水及分散劑之混合程度而有所不 同，在實務上，很難掌握每一批之混合程度均為相同，故BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a micro ceramic crucible, and more particularly to a novel designer for manufacturing a crucible element by powder injection molding. [Prior Art] According to the current common manufacturing method, there is a method for manufacturing ultra-thin wall ceramic crucibles as disclosed in Announcement No. 486453. As you can see from the previous patent, the main system is A gypsum mold is made into a mold, and then the ceramic powder, water and dispersing agent are mixed in a container in an appropriate proportion, poured into a mold cavity of the gypsum mold, and then the gypsum mold is turned upside down, and the excess mud is discharged, and the mold can be discharged. A thin layer is formed in the hole. After the dry mold is formed, the plaster mold is turned over. After the excess ceramic material of the mold cavity is trimmed, the plaster mold is turned over to make the mold cavity face downward, and the embryo body in the plaster mold is dried. After the volume shrinks and automatically falls, the billet is placed in a sintering furnace for sintering to form. Looking at the manufacturing method in detail, it is not difficult to find that there are still some shortcomings. The main reasons are as follows: 1 · Because the service life of the plaster mold is not long, it can often be used after a period of time, so it is often necessary Update the mold to increase manufacturing costs. 2. The conventional manufacturing method mainly uses the plaster mold to flip up and down, allowing the excess mud to flow out and forming a thin layer in the cavity, which can be directly formed after drying; however, the gravity is used to make the excess mud flow out. The method is often different due to the degree of mixing of ceramic powder, water and dispersant. In practice, it is difficult to grasp the degree of mixing of each batch is the same, so
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五、發明說明（2) 於成形掛堝胚體時，仍存有厚度不一之缺 二= 掛網胚料，由於每二批所生產出 t li/ *有所不同，故於進行熱差分析儀實驗 (DSC)時，容易因掛竭之重量無法一致而造成了 的 一項變數，致使實驗結果無法達到百分百 【發明内容】 + # & 而本發明之主要目的即在於提供一種微型陶瓷坩堝之 製造方法，尤指一可成形薄壁且重量及壁厚均為相同之坩 堝元件者。 其製造步驟主要如下： (a)開模：利用金屬透氣材質製作成具多模穴之公、 母模具及心模’模穴内徑與心模外徑之間距即為掛禍之厚 度大小。 (b )混鍊·將黏結劑及陶究粉末均勻混合形成陶究泥 漿 ，其黏結劑黏度小於1 0 0 0 P a · s，而陶瓷粉末之晶粒亦小於 1以m 〇 (c)射出成形：將陶瓷泥漿均勻射出於模具模穴與心 模之間距内，其最大射出量為5 c c，溫度為1 2 〇 °c到1 8 0 °C 左右 ，而時間則控制在5至1 0秒，壓力則處於8 0到1 5 0 Mpa之間 ，在如此控制條件之下，可令坩堝生胚強度大於1 〇 Mpa。 (d )脫脂：將坩堝生胚置入内有溶劑的容器中浸泡加熱 ，依設定的溫度（5 0〜6 0 °C )到達後在一定時間内將黏結劑、V. INSTRUCTIONS (2) In the case of forming the hanging embryo body, there are still different thicknesses of the two = net stock, because the heat produced by each of the two batches is different, so the heat difference In the analyzer experiment (DSC), a variable that is easily caused by the inconsistency of the weight of the exhaustion, so that the experimental results cannot reach 100% [invention] + # & The main purpose of the present invention is to provide a The manufacturing method of the micro ceramic crucible, especially one which can form a thin wall and has the same weight and wall thickness. The manufacturing steps are as follows: (a) Opening the mold: using the metal gas permeable material to make the male and female molds with the multi-mode hole and the heart mold. The inner diameter of the cavity and the outer diameter of the core mold are the thickness of the accident. (b) mixed chain · uniformly mix the binder and the ceramic powder to form a ceramic slurry, the viscosity of the binder is less than 1000 Pa·s, and the grain of the ceramic powder is less than 1 in m 〇(c) Forming: The ceramic slurry is evenly shot from the distance between the die cavity and the die. The maximum injection amount is 5 cc, the temperature is about 1 2 〇 °c to 180 °C, and the time is controlled from 5 to 10 In seconds, the pressure is between 80 and 150 MPa. Under such control conditions, the embryonic strength can be greater than 1 〇Mpa. (d) Degreasing: soak the embryos in a container with solvent and heat them. After reaching the set temperature (5 0~60 °C), the binder will be applied within a certain period of time.
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五、發明說明（3) 溶出，藉以進行脫脂，使蚶 釋出； ° 内之黏結劑得予被溶劑 (e )燒結：將脫脂後之车 ^ 設定燒結溫度1 6 Ο Ο X：，燒社日4 9置於兩溫燒結爐内， T，已脫脂完成之掛：生：=時成开在/氣爐環境 【實施方式】 麂、…成形者。 本發明係一種微型陶瓷掛滿 來製作薄壁且重量及壁厚 ^ 仏方法，其主要係用 造步驟主要如下： 旱均為相同之微型陶瓷坩堝，其製 母模(:)及開模链屬透氣材質製作成具多模穴之公、 m 與心模外徑之間距即為掛禍之厚 漿（b)混鍊：將黏結劑及陶瓷粉末均勻混合形成陶瓷泥 ’黏結劑黏度小於1 〇 〇 〇 p a · S，而陶瓷粉末之粒徑小於1 # m 〇 (C)射出成形：將陶瓷泥漿均勻射出於模具模穴與心 模之間距内，其最大射出量為5cc，溫度為120。(：到180 左右 ’而時間則在5至1 〇秒，壓力則控制在8 0到1 5 0 M p a之間， 如此控制條件之下，可令坩堝生胚強度大於1 〇 Mpa。 (d)脫脂：將坩堝生胚置入内有溶劑的容器中浸泡加 熱’依設定的溫度（5 〇〜6 0 °C )到達後在一定時間内將黏結 劑溶出’藉以進行脫脂，使掛竭生胚内之黏結劑得予被溶5. Description of the invention (3) Dissolution, whereby degreasing is carried out to release the crucible; the binder in ° is sintered by the solvent (e): the degreased car is set to a sintering temperature of 1 6 Ο Ο X:, burnt Day 4 9 is placed in a two-temperature sintering furnace, T, has been degreased to complete the hanging: raw: = when the open in / gas furnace environment [implementation] 麂, ... shape. The invention relates to a method for manufacturing a thin wall and a weight and a wall thickness by using a micro ceramic. The main steps are as follows: The same micro-ceramic crucible, the mother mold (:) and the mold opening chain It is made of breathable material and has a multi-cavity hole. The distance between m and the outer diameter of the die is the thick paste of the disaster. (b) Mixed chain: the cement and ceramic powder are evenly mixed to form the ceramic mud. The viscosity of the adhesive is less than 1. 〇〇〇pa · S, and the particle size of the ceramic powder is less than 1 # m 〇 (C) injection molding: the ceramic slurry is evenly shot from the distance between the mold cavity and the core mold, the maximum injection amount is 5cc, the temperature is 120 . (: to about 180' and the time is 5 to 1 〇, and the pressure is controlled between 80 and 150 MPa. Under such control conditions, the embryo strength can be greater than 1 〇Mpa. Degreasing: soak the embryos in a container with solvent and heat them. 'According to the set temperature (5 〇~60 °C), the binder will be dissolved out within a certain period of time. The adhesive in the embryo is dissolved
第7頁 1249512 五、發明說明（4) 劑釋出； 設定燒結溫度1 6:\月曰，後燒之杜半成品1 f於高溫燒結爐内， 環境下，將已脫脂完成以;1二時成，形在充滿空氣爐 經過上述步驟後，即可 2:成形。 2 1 9 0 0 kgf/mm2 ’ 而勒度以 j=H^5〇〇Mpa、1度 之方法係採射出成形，其推型坩㈣，由於本發明 更緻密化，有助於提昇其結二㊁^一定，可使陶究掛堝 由於本發明所揣+ ♦Γ 考0 十分簡便快速，一次可、生吝，掛禍製作方法，其製作步驟 其製造成本，使其由僂餘_ =多組陶瓷坩堝，可有效降低 下，且坩堝壁厚和重量^ 500〇元降低至一個10D元以 到較為精確之實驗數據^致’不會形成實驗的變數，可得 是以，本發明所提 製造方法有助於提昇掛禍、之微型陶瓷坩堝之製造方法，其 成形均壓射出，可確俾除之結構強度，由於係採粉末射出 製法，爰依法提出專利' ^掛瑪壁厚一致，實有異於習見 画 麵 第8頁 1249512 圖式簡單說明 無 ΙϋΗ 第9頁Page 7 1249512 V. Description of the invention (4) Release of the agent; Set the sintering temperature to 6:\月曰, and then burn the semi-finished product 1f in the high-temperature sintering furnace. Under the environment, it will be degreased; 12:00 After the above steps are completed in the air-filled furnace, it can be formed. 2 1 9 0 0 kgf/mm2 ' and the degree of extraction is formed by j=H^5〇〇Mpa, 1 degree, and the push type is (4). Because the invention is more dense, it helps to improve the knot. 22^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ A plurality of sets of ceramic crucibles can effectively reduce the thickness of the crucible, and the wall thickness and weight of the crucible are reduced to a 10D element to obtain a more accurate experimental data, which means that the experimental variables are not formed, and the present invention can be obtained. The manufacturing method is helpful to improve the manufacturing method of the micro-ceramic crucible, and the forming method is uniform pressure injection, which can eliminate the structural strength. It is different from the seeing picture on page 8 1249512 The simple description of the picture is innocent page 9