1295951 九、發明說明： 【發明所屬之技術領域】 本發明為磁力研磨之磁性磨料改良製法，乃係以純鐵粉末(Fe 99.9%)顆粒與氧化銘粉末(A12〇3)顆粒經攪拌擠壓燒結後，所形成 之塊狀再予以粉碎，以達成鐵粉末顆粒表面結合有數量不等之尖 銳多角形氧化銘，藉該尖銳多角形氧化鋁提供物品表面之研磨拋 光，以及將該氧化鋁粉末顆粒與鐵粉顆粒的大小依適當比例改 變，即可依所需拋光程度製成所需粒度之磨料的技術領域。 【先前技術】 一般磁性磨料的製法較為常用為： 1·單純混合法：將鐵粉與研磨材料粉依比例均勻混合，該研磨材 料之種類為氧化銘、碳化石夕、二氧化石夕、碳化硼、立方氮化侧、 鑽石等材料，而該材料係以鐵粉帶動下作表面拋光研磨。 2. 電漿熔融法：係將鐵粉顆粒表面在__電漿加熱至熔融狀 態，迅速與碳化鈮粉末(Nbc)黏結在一起，具有結合性強，不易 脫落之特性。 3. 溶膠凝縣：係將鐵類人氧傾卿成射，賴摔均句， 令鐵粉顆絲面紅細彡成舰，以熱職紋合物，再放入 燒結爐中加熱，即可得到磁性磨粒。 4. 機械合金法：储鐵粉、不細球、碳化雜維—域入不錄 鋼桶内旋轉，使齡與碳切齡不斷產生職，而使較硬碳 化石夕纖維插人鐵粉雜巾，_成特狀合金磨料。 1295951 【發明内容】 一、解決的問題： •習知單純混合法，因僅以鐵粉顆粒牽動磨料作表面拋光研磨， 其抛光效果因粉末本身較輕，如遇有表面坑洞，將無法充分作 表面研磨，其效果較差。 2. 習知電魏融法，係因碳化歸狀)與鐵粉由賴中落下，於瞬 間使氧化鈮在鐵粉顆粒表面黏結一起，然由於落下動作之損失 較大，且所費成本相對較高。 3. 習知溶膠凝膠法，由於所使用原料價格昂貴；且製造過程中合 產生有毒的揮發性物質，故較少人使用。 θ 4·習知機械合金法所製造之磨料，因壽命較短，雜少使用。 二、解決的手段 ，1.本發日聽應關將純鐵粉與氧化轉末顆粒經均勻授摔 後，倒入i制，透過對贿末麵於模具㈣麟壓後，置 於真空燒_作高溫加熱，使鐵粉麵形成雜狀態，藉由黏 結作用’而使氧化轉末難被鐵粉末.之表面所包覆結合， 2冷卻後賴具雜㈣彡錢狀，再朗鱗㈣灯規則之粉 末顆粒，該粉末雛係為鐵雕表面突时數量不等之尖銳 形顆粒的氧她’以提供簡便及低成本之製法。 2.該氧她難與齡雛之齡，可依贿雛絲化銘粉 末顆粒之《_作為材鄕作參數，啤供表面拋光研磨程度 1295951 - 並月bk外物品表面研磨之品質 之翻’其製成之磨料不易脫落， 特性者。 【實施方式】 請參閱第―圖所示，雜預設_之不朗鐵粉難1與不 ，規職她2攪拌均勻後形成混合物粉末難3，再倒人一模具* 内應用加魏置崎當壓力對該混合物粉末顆粒進行擠壓，而 後將雜具置於真钱賴5 N加熱至—適纽度，使該鐵粉顆 粒1I成塑性體，而氧化紹2則受擠壓埋入鐵粉顆粒工之表面， &加鱗間’麵具4内之鐵侧粒與氧化蝴粒即燒結成 塊狀體6 (如第三圖），經冷卻後，再將該塊狀體6予以粉碎， 以形成磁性磨料（如第四圖）；該磁性磨料單元12 (如第五圖）的 =則具魏量衫之钱多角形氧脑（如第五圖所示的淺色 部分為氧化銘），達到堅固不易脫落及低成本之經濟效益者。 ⑩ 依_之製法，罐鐵粉齡1與氧化鱗末顆粒2之重量 比例’則可依表面所需拋光研磨程度，顧合適_之粉末顆粒 大小，以獲得較精密之拋光研磨效果者。 磁力研磨拋光機構’請參閱第二圖及第六〜九圖所示，該被加 工之工件W分別為平面（第六圖）、曲面（第七圖）、外圓（第八 圖）與内® (第九圖）與其拋光機構實施研雜作實施例；前述 磁!·生磨料單元丨2 ’即為滅研磨之材料，制需磁性磨料單元 之數量，置於欲拋_磨之表面，同時電磁鐵或永久磁鐵％將磁 1295951 圖-B )。 【圖式簡單說明】 第一圖為本發明製造流程方塊示意圖。 第二圖為本發明之方法所製成研磨材料單元示意圖。 第三圖為本發明燒結後之塊狀體示意圖。 第四圖為本發明磁性研磨材料SEM顯微放大圖。 第五圖為本發明磁性研磨材料單元SEM顯微放大圖。 第六圖為磁性研磨材料於平面工作物作拋光研磨示意圖。 第七圖為磁性研磨材料於曲面工作物作拋光研磨示意圖。 第八圖為磁性研磨材料於外圓工作物作拋光研磨示意圖。 第九圖為磁性研磨材料於内圓工作物作拋光研磨示意圖。 第十圖-A係平面工作件在未研磨前狀態示意圖。 第十圖-B解©ji作件在顧本發明所製狀磁性研磨材料達成 鏡面處理示意圖。 第十-1I_A係曲面ji作件在未研磨前狀態示意圖。 第十®_B係曲面工作件在應用本發明所製成之磁性研磨材料達 成鏡面處理示意圖。 【主要元件符號說明】 鐵私顆粒1氧化銘2混合物粉末顆粒3 模具4 真空燒結爐5塊狀體6磁性磨料單元12 電磁鐵或永久磁鐵Μ1295951 IX. Description of the invention: [Technical field to which the invention pertains] The present invention is a magnetic abrasive improved method for magnetic grinding, which is obtained by stirring and sintering a pellet of pure iron powder (Fe 99.9%) and oxidized powder (A12〇3). After that, the formed block is further pulverized to achieve a combination of a number of sharp polygonal oxides on the surface of the iron powder particles, by which the sharp polygonal alumina provides grinding and polishing of the surface of the article, and the alumina powder particles The technical field of the abrasive having the desired particle size can be made according to the degree of polishing required, depending on the size of the iron powder particles. [Prior Art] Generally, the method of preparing magnetic abrasives is commonly used as follows: 1. Simple mixing method: uniformly mixing iron powder and grinding material powder in proportion, the type of the grinding material is oxidized, carbonized stone, sulphur dioxide, carbonization Boron, cubic nitride side, diamond and other materials, and the material is driven by iron powder for surface polishing. 2. Plasma melting method: The surface of the iron powder particles is heated to a molten state in the __ plasma, and is quickly bonded to the niobium carbide powder (Nbc), which has the characteristics of strong bonding and not easy to fall off. 3. Sol Ning County: It is the iron-like person who takes the oxygen into the water, and the smashing of the sentence, so that the iron powder is red and fine, and the steel is heated into a sintering furnace. Magnetic abrasive particles are available. 4. Mechanical alloy method: iron storage powder, non-fine ball, carbonized miscellaneous dimension - the rotation of the domain does not record in the steel drum, so that the age and the carbon age are continuously generated, and the hard carbonized carbide fiber is inserted into the iron powder. Towel, _ into a special alloy abrasive. 1295951 [Disclosed] First, the problem to be solved: • The simple mixing method is known, because only the iron powder particles affect the abrasive for surface polishing, the polishing effect is lighter due to the powder itself, and if there is a surface pit, it will not be sufficient. For surface grinding, the effect is poor. 2. The well-known electric Wei Rong method, which is due to carbonization and falling from the iron powder, instantly bonds the cerium oxide on the surface of the iron powder particles, but the loss due to the falling action is large, and the cost is relatively high. . 3. The conventional sol-gel method is less used because of the high cost of the raw materials used and the production of toxic volatile substances during the manufacturing process. θ 4· Abrasives manufactured by the conventional mechanical alloy method have a short life and are rarely used. Second, the means of solution, 1. On the day of the hearing, the pure iron powder and the oxidized powder should be evenly dropped, and then poured into the system. After the end of the bribe (4), the pressure is burned in a vacuum. _ for high temperature heating, so that the iron powder surface forms a heterogeneous state, by the binding action 'to make the oxidation end difficult to be covered by the surface of the iron powder. 2 after cooling, the filth is miscellaneous (four) money-like, and then scales (4) A regular rule of powder particles, which is a method of providing a simple and low-cost method for the oxygenation of sharply shaped particles of varying lengths in the surface of an iron sculpture. 2. The oxygen is difficult for her age and age, can be based on the bribes and silkworms of the powder particles of the "_ as a material for the parameters, the surface of the beer for polishing and polishing 1295951 - and the quality of the surface grinding of the items outside the bk" The abrasive made by it is not easy to fall off, and the characteristics are. [Embodiment] Please refer to the figure - figure, the miscellaneous preset _ is not difficult to iron powder 1 and no, the regular 2 she mixes to form a mixture of powder difficult 3, then pour a mold * internal application plus Wei Saki pressure is used to squeeze the powder particles of the mixture, and then the miscellaneous tools are placed in the real money Lai 5 N to a suitable degree to make the iron powder particles 1I into a plastomer, while the oxidation of the powder is buried in the extrusion. On the surface of the iron powder granules, <the scale between the iron side granules and the oxidized butterfly in the mask 4 is sintered into a lump 6 (as shown in the third figure), after cooling, the block 6 is It is pulverized to form a magnetic abrasive (as shown in the fourth figure); the magnetic abrasive unit 12 (as shown in the fifth figure) has a polygonal oxygen brain (as shown in the fifth figure). Oxidation Ming), to achieve the economic benefits of strong and not easy to fall off and low cost. 10 According to the method of _, the ratio of the weight of the can iron powder 1 to the weight of the oxidized scale particles 2 can be determined according to the degree of polishing and polishing required by the surface, and the powder particle size of the powder can be obtained to obtain a more precise polishing effect. Magnetic grinding and polishing mechanism 'Please refer to the second figure and the sixth to the ninth, the workpiece W is the plane (sixth figure), the curved surface (seventh figure), the outer circle (eighth figure) and the inside ® (9th) and its polishing mechanism to carry out the practice of the example; the magnetic!· Raw abrasive unit 丨2 ' is the material for the grinding, the number of magnetic abrasive units required, placed on the surface to be polished At the same time, the electromagnet or permanent magnet % will be magnetic 1295561 Figure-B). BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a block diagram of the manufacturing process of the present invention. The second figure is a schematic view of the unit of abrasive material produced by the method of the present invention. The third figure is a schematic view of the block after sintering of the present invention. The fourth figure is an SEM microscopic enlarged view of the magnetic abrasive material of the present invention. The fifth figure is an SEM microscopic enlarged view of the magnetic abrasive material unit of the present invention. The sixth figure is a schematic diagram of the polishing of the magnetic abrasive material on the planar work. The seventh figure is a schematic diagram of polishing and grinding of magnetic abrasive materials on curved workpieces. The eighth figure is a schematic diagram of the polishing of the magnetic abrasive material in the outer circle. The ninth figure is a schematic diagram of the polishing of the magnetic abrasive material in the inner circle. Figure 11 - Schematic diagram of the state of the A-plane work piece before it is ground. The tenth figure-B solution is a schematic view of the mirror surface treatment of the magnetic abrasive material prepared by the invention. The tenth-1I_A system surface ji is a schematic diagram of the state before the grinding. The tenth®_B-series curved workpiece is mirrored in the application of the magnetic abrasive material produced by the present invention. [Main component symbol description] Iron private particles 1 oxidation Ming 2 mixture powder particles 3 Mold 4 Vacuum sintering furnace 5 block 6 magnetic abrasive unit 12 Electromagnet or permanent magnet