555605 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（） … 【發明之範圍】 本發明係有關一種半固態金屬射出成形之方法與裝 置，特別是一種岢以生成晶粒細緻之黏漿，並且以螺桿射 出機構計量射出成形，適用於大量製造工件的射出成形方 法及裝置。 【發明之技術背景] 利用半固態材料成形技術，改善壓鑄製品品質的手段 已爲人所熟知，而這項技術自1970年代初期由美國麻省 理工學院（MIT)發表其理論基礎以來，發展出許多相關 技術，量產的製程也漸趨成熟。其不僅維持了傳統壓鑄生 產速度快、尺寸精度高等優點，也降低了元件中的氣孔及 縮孔含量’因此可大幅提高產品的機械性能，達到淨形鑄 造及可熱處埋鑄件的要求。 而已知之技術，例如發給Massapbusetts Institute of555605 Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention ()… [Scope of the invention] The present invention relates to a method and device for injection molding of a semi-solid metal, especially a method for generating fine grains. The slurry is metered for injection molding by a screw injection mechanism, and is suitable for injection molding methods and devices for mass-producing workpieces. [Technical background of the invention] The method of improving the quality of die-casting products using semi-solid material forming technology is well known, and this technology has been developed since the theoretical foundation was published by the Massachusetts Institute of Technology (MIT) in the early 1970s. For many related technologies, the process of mass production has gradually matured. It not only maintains the advantages of fast production speed and high dimensional accuracy of traditional die-casting, but also reduces the content of pores and shrinkage in the component ’, which can greatly improve the mechanical properties of the product and meet the requirements of net-shape casting and hot-buried castings. Known technologies, such as those issued to the Massapetts Institute of
Technology ( MIT)的美國專利第3,902,544號，其中揭 露了一種將熔融的液態金屬液，引導入一插攪拌筒中不斷 的攪拌，並且進行冷卻，致便存在該攪拌筒中的液態金屬， 藉由攪拌時的剪切作用，逐漸形成一種半固態之黏漿，最 後冷卻而形成一種鑄錠，但是這種鑄錠在欲製成工件之 時’必須再將該鑄錠按所需之重量切成更小的錠料，重新 加熱到所需固相分數後送到壓鑄機成形，由於此種製造方 法的錠料是全固態加熱至固相分數較高的半固態，以機械 臂夾持傳送至壓射室時仍維持固體形狀，較類似傳統鍛 _ __ 本紙張尺度適用中國國家榡率（CNS ) A4規格（21〇X297公釐） (請先閱讀背面之注意事項再填寫本頁) 、.裝· ,ιτ 555605 A7 _____B7_ 五、發明説明（） 造，因此又稱爲「觸變鍛造法」（Thixoforging )，但是這 種製程顯然較爲複雜。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 另外在發給The Dow Chemical Company的美國專利 第5,040,589號專利*其中所揭露之技術是將金屬顆粒經 射出成形機加熱至部份熔融狀態並施以剪切成半固態黏漿 後，以螺桿推送注射成形；而在發給Cornell Research Foundation，Inc·的美國專利第5,501，266號，其中則是 將熔融金屬經特殊設計之射出成型機，直接利用料管及螺 桿施以剪切冷卻至半固態後再以螺桿推送注射成形；至於 攪拌該金屬材料之方式除了前述之螺桿攪拌（日本專利公 開第1-170565號，第1-178345號，第1-192447號亦使 用此法）’還有利用葉片攪拌（如美國專利第4，116,423 號）’以及電鏡攪動（electro-magnetic stirring )(如美國 專利第5，178,204號，第5,219,018號）等之方式；而在 前述利用螺桿推送的已知技術中，溶融的金屬以及半固態 的金屬材料係在同一個螺旋推送筒中被移動，但是將熔融 金屬冷卻至半固態需要快速冷卻，而將半固態金屬計量射 出需要穩定均溫，兩者所需的溫度控制條件並不相同，而 同一個推送筒的熱傳現象，將使得前述的溫度難以控制， 並且不適用於需大吐出量工件的生產。 【發明的簡要說明】 因此’本發明之主要目的就是解決前述之問題，本發明主要係 將第一階段過熱之液態金屬材料，經由第二階段包含強速冷卻與快 _ 4 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 555605 經濟部中央標準局員工消費合作衽印製 Α7 Β7 五、發明説明（） 速擾動之黏漿成形製程，產生一種晶粒細緻之半固態漿體材料’再 經由第三階段在穩定的溫度控制條件下，以螺桿持續剪切攪動’使 該半固態漿體材料中的固體晶粒維持在一固液共存區間並且能均与 分佈，然後計量射入模穴，在模穴中固化成工件。前述第二階段與 第三階段之溫度係分開控制，不但可使第二階段之晶粒細緻’在溫 度的控制方面也更容易且不會互相干擾，整體黏漿之產生吐出量大’ 極適於製成大型工件之生產。 另一方面，本發明在第二階段的黏漿成形製程所使用 的半固態漿體產生器，由於不需承受壓鑄法中射出時的高 壓，因此容納熔融金屬的容器壁面可以盡量的薄，而有助 於第二階段快速冷卻的效率。 本發明之技術內容與實施例，現配合圖式說明如下： 【圖式說明】 第1圖，係爲本發明之裝置組成方塊圖，顯7K本發明中各 個主要組成單元之間的運作關係。 第2圖，係爲本發明之裝置構造圖。 第3圖，係爲第2圖之局部構造放大圖。 【實施例說明】 首先請參閱「第2圖」，根據本發明之技術所提出之 半固態金屬射出成形裝置，主要係包括有：一過熱液態金 屬產生器1，在保護氣體環境下產生潔淨之金屬熔液；一 半固態漿體產生器2，係與熔液供給之金屬產生器1之出 料口啣接，用以將過熱之液態金屬材料在快速冷卻以及快 5 本紙張尺度適用中國國家標準（CNS ) Μ規格（210 X 297公釐） i· I— n —^ϋ mu ml mi^:..·· ei i^i— - —^ϋ \ ^ I V:. (請先閱讀背面之注意事項再填寫本頁) 555605 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（） 速擾動之狀態下，使該金屬材料維持在一固液共存區間（指 液態金屬材料自開始凝固至凝固結束爲止之溫度範圍）， 而產生一種晶粒細緻之半固態漿體材料；一射出器3，係 與該半固態漿體產生器2之半固態漿體出口 2 0 1_接， 其具有溫度微調功能，用以將前述之半固態漿體維持在一 穩定均溫區間並且待計量射出後，在模穴4中固化成工 件。 本發明之關鍵技術在於前述第二階段之半固態漿體產 生器2，與第三階段之射出器3的溫度係分開控制，使得 第二階段與第三階段在溫度的控制方面不會互相干擾，並 且更容易個別控制，而獲得一種晶粒更爲細緻的半固態漿 體，然後再藉由第三階段之射出器3，致使該半固態漿體 可以在維持於其固液共存區間的條件下，配合該射出器3 可計量之特性，而注入模具4形成一種具備半固態材料特 性的鑄件，如此一貫之製程及設備，不但可以獲得品質良 好與機/械性能良好的鑄件，由於總體黏漿之產生吐出量 大，更適於工件之快速大量生產。 而本發明之實施方法係包括下列之步驟： 1·產生一過熱液態金屬； 2 ·提供一剪力剪切該過熱液態金屬，並且在此剪切過程 中快速冷卻該過熱液態金屬至其固液共存區間形成一 種半固態漿體，然後送出該半固態漿體； 3 ·提供一裝置容納前述之半固態漿體，維持該半固態漿 6 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) 555605 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（） 體之溫度於其固液共存區間，並且繼續提供剪切打斷 樹枝狀微結構(dendritic structure)，以維持良好之半 固態漿體； 4 ·利用射出器將前述之半固態漿體射出至一模具，形成 該半固態材料鑄件。 如「第2、3圖」所示，係爲本發明根據前述之技術 特點完成的一實施例，如圖所示，本發明之裝置包括有： 一過熱液態金屬產生器1 (例如坩堝爐），用以熔融 金屬材料而形成一種過熱之液態狀，然後將該過熱之液態 金屬送出該過熱液態金屬產生器1(一保護氣體供應器 5，用以提供該過熱液態金屬之保護，以防止該過熱液態 金屬氧化；一半固態漿體產生器2，係與該過熱液態金屬 產生器1啣接，用以承接前述送出的過熱液態金屬，並且 將其快速冷卻以及作快速攪拌，而成一種晶粒細緻的半固 態漿體；一射出器3，係與該半固態漿體產生器2之半固 態漿體出口 2 0 1啣接，其具有溫度微調功能，用以將前 述之半固態漿體維持在一固液共存區間並且計量射出；一 模具4，由夾模單元6控制其開閉模動作，係用以承接前 述射出器3所射出的半固態漿體，經保壓製備成鑄件。 前述的保護氣體供應器5，係可以提供如氮氣、氬氣 或六氟化硫等氣體，致使該氣體充滿於該過熱液態金屬產 生器1之中。 該半固態漿體產生器2，係包括有：一中空的管體2 7 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 555605 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（） 1，該管體21具有一與前述之過熱液態金屬產生器1之 過熱液態金屬出口 10啣接的液體入口 200,以及送出 該半固態漿體的出口 2 0 1，而此一管體δ 1最好是以該 液體入口 2 0 0高於該出口 2 0 1的傾斜方式配置，致使 該過熱液態金屬可以自由的流至該射出器3;—用以控制 該管體2 1之溫度的溫度控制機構，致使該過熱液態金屬 快速的絳低至固液共存區間，而形成一種半固態漿體，而 此種溫度控制機構係由一圍繞於該管體21之外圍的加熱 元件2 5、冷卻元件2 3以及絕緣保溫器2 4所組成，在 實施上該加熱元件2 5係可以是電熱線圈或感應加熱器， 而該冷卻元件2 3則可以使用內、部有冷卻流體流動的冷卻 器來達成，至於該冷卻流體可以選用自水、空氣、熱傳液 或是其他具有相同特性的流體，以達到快速冷卻的效果， 而其冷卻之溫度必須使得該金屬材料仍然保持於一流體之 狀態，如此不致於凝固，當然若是該冷卻元件2 3之冷卻 溫度過低，就必需利用該加熱元件2 5將該溫度回復至適 合的溫度範圍；而前述之半固態漿體產生器2更包括有一 在該過熱液態金屬快速冷卻的過程中，快速攪動該半固態 金屬的攪拌裝置，而此一攪拌裝置可以利用一種螺旋槳、 螺桿或是電磁攪拌器2 2等方式進行，如此才可以在該過 熱液態金屬逐漸凝固的過程中產生一剪力，將其形成的樹 枝狀組織打斷，以獲得晶粒細緻的半固態漿體。 前述的射出器3，係包括有：一中空料管30用以暫 8 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 555605 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（） 存該半固態漿體，此一中空料管3 〇具有一與前述半固態 漿體產生器2之半固態漿體出口 2 0 1啣接的進入口 3 0 0，而在中窣料管3 0的另一端則設有一噴嘴3 1，用以 將半固態漿體注入該模具4，其中該噴嘴3 1之末端最好 略微向上傾斜一角度，如此將可以在噴嘴3 1未與模具4 啣接之時，防止該半固態漿體滴垂或是泄出；一用以控制 該中空料管3 0及噴嘴3 1之溫度的溫度控制機構，致使 該半固態酸體在等待注射至該模具4之前仍然保持在該半 固態漿體的狀態，而此種溫度控制機構同樣的係與前述半 固態漿體產器2的溫度控制機構類似，其係由一圍繞於該 中空料管3 0及噴嘴3 1之外圍的加熱元件3 2，3 2’、 冷卻元件3 3，3 3 ’，以及絕緣保溫器3 4所組成，在 實施上該加熱元件3 2，3 2’係可以是電熱線圈或感應 加熱器，而該冷卻元件3 3，3 3 ’則可以使用內部有冷 卻流體流動的冷卻管來達成，至於該冷卻流體可以選自於 水、空氣、低溫氣體、熱傳液或是其他具有相同特性的流 體，在此一射出器3之所諝第三階段中，溫度控制的主要 目的係要維持該半固態漿體的部分凝固狀態，所以其溫度 之精準控制非常重要，而該冷卻元件3 3，3 3 ’即是用 以防止該加熱溫度過高時之冷卻；在該射出器3之內部， 還設有一用以維持剪切並將該半固態漿體注射入該模具4 之射出裝置，此一射出裝置係利用一螺桿3 5及逆止閥3 6將半固態漿體注入該夾模單元6所夾持的該模具4內， 9 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 555605 A7 B7 五、發明説明（） 而且該半固態漿體的注射量及保壓成型亦藉由控制該螺桿 3 5的位移及壓力而完成，如此一貫之製程及設備’不但 可以獲得品質良好與機械性能佳的鑄件，由於半固態漿體 係由獨立之產生器2所大量產出，該射出器3可作計量與 射出之用，將使其總體黏漿之產生吐出量大，更適於大型 鑄件之大量生產。 在前述的例子之中，由於該半固態漿體產生器2之出 口 2 0 1與該射出器3的進入口 3 0 0間尙具有一開閉閥 26，將可以使得該半固態漿體產生器2與該射出器3之 間的溫度不致於產生明顯的干擾，如此將可以使得其二者 的個別溫度控制更爲容易與準確；另一方面，由於該半固 態漿體產生器2又不需承受半固態漿體射出時的高壓，將 可以使該管體21之管壁厚度盡量的輕薄化，如此也可以 使得該快速冷卻更容易達成。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 前述之模具4與夾模單元6，其構造與傳統用以模鑄 形成鑄件的設備類似，故不多述其構造，而本發明則將此 一夾模單元6採一配合前述噴嘴31之斜角的方式傾斜設 置，而由驅動器61驅動夾摸單元6，以完成接觸或離開 噴嘴3 1的動作。 綜合前述之內容，根據本發明所提出的半固態金屬射 出成形之方法與裝置，其在實施上將具有以下的數點優 點： 1、在前述第二階段之半固態漿體產生器之快速冷 10 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 555605 A7 B7 五、發明説明（） 卻，與第三階段的射出器維持均勻之溫度係分開 控制，在溫度的控制方面將吏爲容易且不會互相 干擾。 2、 第二階段快速冷卻過程，可大量形成晶粒紐緻的 半固態黏漿，經第三階段的均溫擅拌動作，可製 備更佳均質穩定的半固態黏漿。 3、 第二階段的黏漿製備不影響射出，保壓冷卻及噴 嘴合離等的成型過程，故可以預先大量的製備半 固態黏漿，待第三階段計量射出，故適用於大型 鑄件之生產。 爲能充份揭露本發明與習知技術之差異，特將本發明 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作杜印製 與習知技術比較分述如下： 本發明 習知技術 技 術 特 徵 ☆先以一快速冷卻之半 固態漿料產生單元製 成原料，再以一恆溫 控制之螺桿持續剪切 並計量射出。 ☆夾模單元爲傾料式， 射出單元爲水平式， 以夾模單元之前、後 座進退來達成模具與 噴嘴的接觸及分離。 ☆以單一螺桿同時做半固 態漿料之冷卻、剪切及 計量射出動作。 ☆夾模單元及射出單元爲 立式，噴嘴朝下，以射 出單元之上、下座進退 達成模具與噴嘴之接觸 及分離。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 555605 A7 B7 五、發明説明（i) 達成效果 ☆將半固態產生單元& 射出單元分開，可達 成精確之溫度控制， 不會互相干擾。 ☆在半固態漿料產生單 元可做快速冷卻，再 經射出單元之持續剪 切，可快速獲得晶粒 微細且穩定之半固態 微結構。 ☆傾料式之夾模單元及 噴嘴，可避免漏料。 ☆二階段之機械結構適 合工業上之大量自動 化生產，製程控制容 易，產品品質較爲穩 定。 ☆在單一螺椁中必須同時 做大範圍之溫度梯度控 制，容易互相干擾，精 確之溫度控制較難達 成。 ☆以同一螺桿同時做冷卻 及剪切，微結構較粗大， 且漿料產率較低。 ☆立式之來模單元及噴 嘴，較易產生漏料，導 致製程中斷或工安問 題。 ☆機械結構不易做大型鑄 件之量產。 (請先閱讀背面之注意事項再填寫本頁) 【圖式之符號說明】 0 2 2 0 0 2 0 1 經濟部中央標準局員工消費合作社印製 2 1 2 2 2 3 2 4 2 5 2 6 過熱液態金屬產生器 •過熱液態金屬出口 •半固態漿體產生器 .....液體入口 .......出口 ·······管體 •·••電磁攪拌器 .....冷卻兀件 •·••絕緣保溫器 .....加熱元件 ......開閉閥 ......射出器 12 本紙張尺度適用中國國家榡準（CNS ) A4規格（210X 297公釐） 555605 A7 B7 五、發明説明（） 3 0...... ......中空料管 3 0 0 ..........進入口 3 1...... · .......噴噙 32、 32,.........加熱元件 33、 33’....... ··冷部元件 3 4...........絕緣保溫器 3 5···.........••螺桿 3 6.............逆止閥 4 ..... 模具 5 ...........保護氣體供應器 6 ..............夾模單元 6 1...........••驅動器 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 13 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）U.S. Patent No. 3,902,544 to Technology (MIT) discloses a molten liquid metal liquid that is guided into a stirring cylinder and continuously stirred, and cooled, so that the liquid metal in the stirring cylinder exists. The shearing effect gradually forms a semi-solid slurry, and finally cools to form an ingot, but when this ingot is to be made into a workpiece, the ingot must be cut into smaller pieces according to the required weight. The ingot is reheated to the required solid phase fraction and then sent to the die-casting machine for forming. Because the ingot of this manufacturing method is heated in all solids to a semi-solid with a high solid fraction, it is conveyed to the injection by a mechanical arm. The chamber still maintains a solid shape, more similar to traditional forging. __ This paper size is applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm) (Please read the precautions on the back before filling this page). ιτ 555605 A7 _____B7_ 5. Description of the invention (), so it is also called "thixoforging", but this process is obviously more complicated. Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). In addition, US Patent No. 5,040,589 issued to The Dow Chemical Company *. The disclosed technology is to shoot metal particles through The molding machine is heated to a partially molten state and sheared into a semi-solid slurry, and then injection-molded with a screw; and in US Pat. No. 5,501,266 issued to the Cornell Research Foundation, Inc., the melt is melted. The specially designed injection molding machine for the metal directly shears and cools to the semi-solid state using the material tube and screw, and then pushes the injection molding with the screw. As for the way to stir the metal material, except the aforementioned screw stirring (Japanese Patent Publication No. 1- No. 170565, No. 1-178345, and No. 1-119447 also use this method) 'also using blade stirring (such as US Patent No. 4,116,423)' and electro-magnetic stirring (such as US Patent No. No. 5,178,204, No. 5,219,018) and the like; and in the aforementioned known technology using screw push, molten metal and semi-solid The metal material is moved in the same spiral barrel. However, cooling the molten metal to a semi-solid state requires rapid cooling, and metering and injection of the semi-solid metal requires stable and uniform temperature. The temperature control conditions required by the two are not the same. The heat transfer phenomenon of the same pushing cylinder will make the aforementioned temperature difficult to control, and it is not suitable for the production of workpieces with large discharge volumes. [Brief description of the invention] Therefore, 'The main purpose of the present invention is to solve the aforementioned problems. The present invention is mainly a liquid metal material which is superheated in the first stage and includes strong cooling and fast cooling through the second stage. National Standard (CNS) A4 specification (210X 297mm) 555605 Printed by A7 B7 in consumer cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention () The slurry forming process of rapid disturbance produces a semi-solid slurry with fine grains The bulk material is passed through the third stage under constant temperature control conditions, and the screw is continuously sheared and agitated to maintain the solid crystal grains in the semi-solid slurry material in a solid-liquid coexistence zone, which can be uniformly distributed, and then measured. It is injected into the cavity and solidified into a workpiece in the cavity. The temperature control of the second stage and the third stage is separately controlled, which can not only make the grains of the second stage finer, but also easier to control the temperature and not interfere with each other. For the production of large workpieces. On the other hand, the semi-solid slurry generator used in the second-stage slurry forming process of the present invention does not need to withstand the high pressure during injection in the die casting method, so the wall of the container containing the molten metal can be as thin as possible, and Contributes to the efficiency of rapid cooling in the second stage. The technical content and embodiments of the present invention are described below in conjunction with the drawings: [Schematic description] Figure 1 is a block diagram of the device composition of the present invention, showing the 7K operation relationship between the main component units of the present invention. Figure 2 is a structural diagram of the device of the present invention. Figure 3 is an enlarged view of the partial structure of Figure 2. [Explanation of the embodiment] First, please refer to "Fig. 2". The semi-solid metal injection molding device according to the technology of the present invention mainly includes: a superheated liquid metal generator 1, which produces a clean gas under a protective gas environment. Metal melt; semi-solid slurry generator 2 is connected to the discharge port of metal generator 1 supplied by the melt, which is used to quickly cool and heat superheated liquid metal materials. (CNS) M specifications (210 X 297 mm) i · I— n — ^ ϋ mu ml mi ^: .. ·· ei i ^ i—-— ^ ϋ \ ^ IV :. (Please read the note on the back first Please fill in this page again for details) 555605 Printed by A7 B7, Consumer Cooperatives of the Central Standards Bureau, Ministry of Economic Affairs V. Description of the invention () Keep the metal material in a solid-liquid coexistence zone under the condition of rapid disturbance Temperature range up to the end of solidification) to produce a semi-solid slurry material with fine grains; an ejector 3 is connected to the semi-solid slurry outlet 2 0 1_ of the semi-solid slurry generator 2, With temperature trimming function For the semi-solid of the slurry is maintained at an average temperature range and stabilized after the injection to be metered, curing the mold cavities 4 into the workpiece. The key technology of the present invention is that the temperature of the semi-solid slurry generator 2 in the second stage and the ejector 3 in the third stage are controlled separately, so that the temperature control of the second and third stages does not interfere with each other. , And it is easier to control individually, and obtain a semi-solid slurry with finer grains, and then the ejector 3 in the third stage, so that the semi-solid slurry can be maintained in the condition of its solid-liquid coexistence interval Next, in accordance with the measurable characteristics of the ejector 3, the injection mold 4 forms a casting with semi-solid material characteristics. Such a consistent process and equipment can not only obtain castings of good quality and good mechanical / mechanical performance. The large amount of slurry produced is more suitable for the rapid mass production of workpieces. The implementation method of the present invention includes the following steps: 1. generating a superheated liquid metal; 2 providing a shear force to shear the superheated liquid metal, and rapidly cooling the superheated liquid metal to its solid-liquid during the shearing process; A semi-solid slurry is formed in the coexistence zone, and then the semi-solid slurry is sent out; 3 · A device is provided to accommodate the aforementioned semi-solid slurry and maintain the semi-solid slurry 6 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 (Mm) (Please read the notes on the back before filling in this page) 555605 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention () The temperature of the body is in its solid-liquid coexistence zone, and shearing continues The dendritic structure is broken to maintain a good semi-solid slurry; 4. The aforementioned semi-solid slurry is ejected into a mold using an ejector to form the semi-solid material casting. As shown in "Figures 2 and 3", this is an embodiment completed according to the aforementioned technical features of the present invention. As shown in the figure, the device of the present invention includes: a superheated liquid metal generator 1 (such as a crucible furnace) To form a superheated liquid state by melting the metal material, and then send the superheated liquid metal out of the superheated liquid metal generator 1 (a protective gas supply 5 to provide protection of the superheated liquid metal to prevent the Oxidation of superheated liquid metal; the semi-solid slurry generator 2 is connected to the superheated liquid metal generator 1 to receive the superheated liquid metal sent out above, and quickly cool and stir it to form a grain. A fine semi-solid slurry; an ejector 3 is connected to the semi-solid slurry outlet 2 0 1 of the semi-solid slurry generator 2 and has a temperature fine-tuning function to maintain the aforementioned semi-solid slurry In a solid-liquid coexistence zone, the injection is measured; a mold 4, which is controlled by the clamping unit 6 to open and close the mold, is used to receive the semi-solid slurry ejected by the ejector 3, which is guaranteed to be pressed. Prepare the casting. The aforementioned protective gas supplier 5 can supply gas such as nitrogen, argon or sulfur hexafluoride, so that the gas is filled in the superheated liquid metal generator 1. The semi-solid slurry generator 2, the system includes: a hollow tube 2 7 This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) 555605 Central Standard of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Bureau A7 B7 V. Description of the invention (1) The pipe body 21 has a liquid inlet 200 connected to the superheated liquid metal outlet 10 of the superheated liquid metal generator 1 described above, and sends out the semi-solid slurry The outlet 2 01 of the body, and this tube body δ 1 is preferably arranged in an inclined manner in which the liquid inlet 200 is higher than the outlet 201, so that the superheated liquid metal can flow freely to the ejector 3 ;-A temperature control mechanism for controlling the temperature of the tube body 21, which causes the superheated liquid metal to rapidly fall to the solid-liquid coexistence interval to form a semi-solid slurry, and this temperature control mechanism is surrounded by a The heating element 25, the cooling element 23, and the insulating and thermal insulator 24 are formed on the periphery of the pipe body 21. In practice, the heating element 25 may be an electric heating coil or an induction heater, and the cooling element 2 3 is It can be achieved by using a cooler with internal and internal cooling fluid flow. As for the cooling fluid, it can be selected from water, air, heat transfer liquid or other fluids with the same characteristics to achieve the rapid cooling effect, and the cooling temperature The metal material must be kept in a fluid state so as not to solidify. Of course, if the cooling temperature of the cooling element 23 is too low, the heating element 25 must be used to restore the temperature to a suitable temperature range; and The aforementioned semi-solid slurry generator 2 further includes a stirring device for rapidly agitating the semi-solid metal during the rapid cooling of the superheated liquid metal, and the stirring device may use a propeller, a screw or an electromagnetic stirrer 2 2 and so on, so that a shear force can be generated during the gradual solidification of the superheated liquid metal, and the branches formed by it The microstructure is broken to obtain a semi-solid slurry with fine grains. The aforementioned ejector 3 includes: a hollow material tube 30 for temporarily 8 paper sizes applicable to China National Standard (CNS) A4 specifications (210X 297 mm) (Please read the precautions on the back before filling this page) 555605 A7 B7 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention () The semi-solid slurry is stored. This hollow tube 3 has a semi-solid slurry outlet from the semi-solid slurry generator 2 described above. 2 0 1 is connected to the entrance 3 0 0, and the other end of the middle tube 30 is provided with a nozzle 31 for injecting a semi-solid slurry into the mold 4, wherein the end of the nozzle 3 1 is the most It is inclined slightly upward, so that the semi-solid slurry can be prevented from dripping or leaking when the nozzle 31 is not connected with the mold 4. One is used to control the hollow material tube 30 and the nozzle 3 1 The temperature control mechanism of the temperature causes the semi-solid acid body to remain in the state of the semi-solid slurry before waiting to be injected into the mold 4, and the temperature control mechanism is the same as the semi-solid slurry generator 2 described above. The temperature control mechanism is similar. The heating element 3 2, 3 2 ′, the cooling element 3 3, 3 3 ′, and the insulating and thermal insulator 34 are formed on the periphery of the hollow material tube 30 and the nozzle 31, and the heating element 32 is implemented. The 3 2 'system can be an electric heating coil or an induction heater, and the cooling element 3 3, 3 3' can be achieved by using a cooling pipe with a cooling fluid flowing therein. As for the cooling fluid, it can be selected from water, air, and low temperature. Gas, heat transfer liquid or other fluids with the same characteristics. In the third stage of this ejector 3, the main purpose of temperature control is to maintain the partially solidified state of the semi-solid slurry, so the temperature of Precise control is very important, and the cooling element 3 3, 3 3 ′ is used to prevent the cooling when the heating temperature is too high; inside the ejector 3, there is also a device for maintaining shear and semi-solid The slurry is injected into the injection device of the mold 4. This injection device uses a screw 3 5 and a check valve 3 6 to inject a semi-solid slurry into the mold 4 held by the clamping unit 6, 9 papers. Standards apply Chinese National Standard (CNS) A4 (210X 297mm) (Please read the precautions on the back before filling out this page) 555605 A7 B7 V. Description of the invention () And the injection volume and pressure forming of the semi-solid slurry are also controlled by the screw 3 5 Such a consistent process and equipment not only can obtain castings of good quality and mechanical properties. Because the semi-solid slurry system is produced in large quantities by an independent generator 2, the ejector 3 can be used for metering and measurement. The use of injection will make the overall slurry production large, which is more suitable for the large-scale production of large castings. In the foregoing example, since the semi-solid slurry generator 2 has an opening and closing valve 26 between the outlet 2 01 and the inlet 3 0 0 of the ejector 3, the semi-solid slurry generator can be made. The temperature between 2 and the ejector 3 will not cause obvious interference, which will make the individual temperature control of both of them easier and more accurate; on the other hand, since the semi-solid slurry generator 2 does not need Withstanding the high pressure when the semi-solid slurry is ejected, the wall thickness of the pipe body 21 can be made as thin as possible, which can also make the rapid cooling easier. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the notes on the back before filling this page) The aforementioned mold 4 and clamping unit 6 are similar in structure to the traditional equipment used to form castings, so there are not many The structure is described, and the present invention provides the clamping unit 6 in an inclined manner in accordance with the oblique angle of the nozzle 31 described above, and the clamping unit 6 is driven by the driver 61 to complete the action of contacting or leaving the nozzle 31. Based on the foregoing, the method and device for injection molding of semi-solid metal according to the present invention will have the following advantages in terms of implementation: 1. Rapid cooling of the semi-solid slurry generator in the aforementioned second stage 10 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 555605 A7 B7 V. Description of the invention () However, maintaining a uniform temperature with the ejector in the third stage is controlled separately. In terms of temperature control, Officials are easy and do not interfere with each other. 2. The rapid cooling process in the second stage can form a large amount of semi-solid slurry with grains. After the third-stage uniform temperature and good mixing action, a more homogeneous and stable semi-solid slurry can be prepared. 3. The slurry preparation in the second stage does not affect the molding process such as injection, holding cooling and nozzle separation. Therefore, a large amount of semi-solid slurry can be prepared in advance and metered out in the third stage, so it is suitable for the production of large castings. . In order to fully reveal the differences between the present invention and the conventional technology, the present invention (please read the precautions on the back before filling this page) is described below. The comparison of printed and conventional technologies by the consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs is described below. : The technical features of the conventional technology of the present invention ☆ The raw material is first made by a fast-cooling semi-solid slurry generating unit, and then continuously cut and metered out by a constant temperature controlled screw. ☆ The clamping unit is tilting type, and the injection unit is horizontal. The front and rear seats of the clamping unit are advanced and retracted to achieve the contact and separation of the mold and the nozzle. ☆ Simultaneous cooling, shearing and metering injection of semi-solid slurry with a single screw. ☆ The clamping unit and the injection unit are vertical, with the nozzle facing downward, and the upper and lower seats of the injection unit advance and retreat to achieve contact and separation between the mold and the nozzle. This paper scale applies Chinese National Standard (CNS) A4 specification (210X 297 mm) 555605 A7 B7 V. Description of the invention (i) Achieved effect ☆ Separate semi-solid generation unit & injection unit to achieve precise temperature control. Will interfere with each other. ☆ The semi-solid slurry generating unit can be quickly cooled, and then continuously cut by the injection unit, a fine and stable semi-solid microstructure can be quickly obtained. ☆ The tilting type clamping unit and nozzle can avoid material leakage. ☆ The mechanical structure of the second stage is suitable for a large number of automated production in the industry, the process control is easy, and the product quality is relatively stable. ☆ A large range of temperature gradient control must be performed simultaneously in a single screw, which is easy to interfere with each other, and accurate temperature control is difficult to achieve. ☆ Using the same screw for cooling and shearing at the same time, the microstructure is coarse, and the slurry yield is low. ☆ The vertical mold unit and nozzle are more likely to cause material leakage, which may cause process interruption or safety problems. ☆ Mechanical structure is not easy for mass production of large castings. (Please read the precautions on the back before filling this page) [Illustration of Symbols in the Schematic] 0 2 2 0 0 2 0 1 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 2 1 2 2 2 3 2 4 2 5 2 6 Superheated liquid metal generator • Superheated liquid metal outlet • Semi-solid slurry generator ..... Liquid inlet ....... Exit ······ Tube body ·· •• Electromagnetic stirrer .. ... Cooling element • · •• Insulation and heat preservation device ..... Heating element ... Opening and closing valve ... Ejector 12 This paper size is applicable to China National Standard (CNS) A4 (210X 297 mm) 555605 A7 B7 V. Description of the invention () 3 0 ............ Hollow tube 3 0 0 .......... Access port 31 1. ............ Sprays 32, 32, ......... Heating elements 33, 33 '......... Cold part 3 4 .. ......... Insulation Heater 3 5 ··· ......... •• Screw 3 6 ............. Check Valve 4 .. ... mold 5 ........... protective gas supply 6 .............. clamping unit 6 1 .......... . •• Driver (Please read the precautions on the back before filling out this page) Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 13 Paper scale applicable Chinese National Standard (CNS) A4 size (210X297 mm)