4 5391 9 A7 B7 五、發明説明（1.) 發明背景 , 1. )發明範續 C請先間讀背面.之泣意事項寫本貫) 本發明係關於一種冒口套筒，其特別處在於，本套筒 係與一頸縮之模芯合成一體。 2. )相關技術之描诚 一般而言，冒口套筒常使用於鏵造鑄鐵、鑄鋼、不銹 鋼，及包括錳鋼、鉻鋼之特殊鋼材。而一頸縮模芯，其係 另外附於冒口套筒之底部，以便在鏵造此類材料後，可輕 易地與冒口套筒分離。 在美國第5,299,625號專利案中，曾揭示此種將頸縮模 芯附於套筒底部之冒口套筒。此種頸縮模芯^般係由具有 相當高耐火特性及熱絕緣能力之材料所製造，因此在模芯 内鎔解之材質不會較鑄件更快固化。 經濟部智慧財產局員工消費合作社印製. 然而，在上述冒口套筒之結構中，由於頸縮之模芯係 分開製造，且係藉由黏著劑附著於冒口套筒之底部，而當 黏著處受損或破裂，其錄化·<金屬將流入因破裂而造成之 間隙中，形成鰭狀之多餘鑄造部份。此將造成鑄件中之缺 點。用於將頸縮模芯黏結至冒口套筒之黏著劑’亦會在鋒 造之過程中與錯化之金屬作用，而在作用後產生氣體。 發明摘要 因此，本發明即致力於解決上述問題。 本發明之目的在於提出一種將_縮模芯結合成一體之 冒口套筒，以避免鎊造鑷件時之缺點。 参紙張尺度逋用中国躅家梯準（CNS ) A4祝格X 297公釐) -4- 4 53 9 1 9 Α7 _— 一 Β7 五、發明説明丁2·)— ^? -- 為達成上述目的，本發明所提出之冒口套筒，包含一 定義出鑄造空間之套筒區段，及一自套筒區段下端延伸出 來並與套筒一體之頸縮模芯區段。頸縮模芯區段具有—開 口，此開口具有一沿開口内緣成形之切口部份。顒縮模芯 區段係至少由陶瓷纖維、矽石、礬土、亞鉻酸鹽及锆英= 所構成之材料群中，選擇其中一種材料而製成。 圖示之簡單說明 茲將所附之圖併入，並構成本發明内容之一部份，以 說明本發明之實體，且連同如下敘述一起作為本發明處理 之說明： 圖一係根據本發明之較佳實體’為具有頸縮模芯之冒 口套筒的截面視圖； 圖二係根據本發明之另一較佳實體，為具有頸縮模芯 之冒口套筒的截面視圖；以及 圖三係根據本發明之進一步較佳實體，為具有頸縮模 芯之冒口套筒的截面視圖。 經濟部智慧財產局貝工消費合作社印製- 較佳實體之詳細敘述 在此藉由附圖，對本發明較佳實體作詳細之敘述。 圖一為根據本發明較佳實體之具有頸縮模芯之冒口套 筒。 本發明之冒口套筒包含一套筒區段10,及一頸縮模芯 區段20〇此套筒區段10可為V字型或u字型。而頸縮模 張逋用中家鱗（qns ) Αβϋ ( 21GX297公金) ---- 453 91 9 A7 B7 五、發明説明（3·) 芯區段20係套筒區段10底部的一部份。在套筒區段10之 内牆，定義出鎔化金屬之接收空間12 ^而在沿頸縮模芯區 段20本體之内緣，具有一切口部份22。 套筒區段10 —般係由放熱或隔熱材料所製成。頸縮模 芯區段則係由具有高耐熱性及熱絕緣之材料所製成，材料 之選定取決於鎔化之鑄件，其係由矽石、攀土、亞鉻酸鹽 及锆英石所構成之材料群、或至少由此材料群中選擇一種 與陶瓷纖維之混合物而製成。 - 以下將根據本發明之冒口套筒之成形方法加以敘述。 頸縮模芯區段20首先係以陶瓷纖維、酚類樹脂及礬土 之混合物，構成預定之形狀，隨後套筒區段10再藉由例如 真空處理來成形。此時，添加至頸縮模芯區段20之填充材 料係由矽石、礬土、亞鉻酸鹽及锆英石所構成之材蚪群中 加以選擇《以無機或有機之黏結劑（binder)作為黏結材質 (binding material)。無機及有機黏結劑之混合物亦可加以 使用。無機之黏結劑可由矽石溶膠、礬土溶膠、息土及耐 火土所構成之材料群中加以選擇。而有機之黏結劑則選自 於乾燥油脂及酚類樹脂所構成之材料群。 在套筒區段10與頸縮辉芯區段20 —體成形後，同時 以攝氏180度至攝式200度之溫度加以熱處理約2小時。 因此，當铸造例如高錳鋼時，使用工具例如小鐵錘等 ，藉由頸縮模芯區段20之切口部份22，在鑄件上垂直產 生之鑄塊即可輕易地自套筒區段移緣^ 圖；為柜·據本發明之另一較佳實體。 本紙張尺度適用中國國家標準（CNS } M規格（？10><297公釐） (請先聞讀背面之注意事項再填寫本頁} ί訂-11. -键- 經濟部財產局員工消費合作社印製- -6- 4 53 9 1 9 A7 B7 五、發明説明（4.) 圖中顯示’頸縮模芯區段20之内緣可形成多階梯之形 狀，以獲得切口之效果。 此外’由圖三可知，根據本發明之頸縮模芯區段2〇， 具有沿此區段外園而成形之突起24。此突起24可用於避 免當準備鑄模時，模砂將冒口套筒10向上推動，或避免由 於鎔化金屬之浮力，造成冒口套筒被向上推動。 在上述冒口套筒之結構中，由於頸縮模芯區段係與套 筒區段一體成形，故不需使用黏著劑（adhesive)加以黏住 頸縮模芯，且不會產生作用後之氣體。因此便可^減少在 鑄件中，由於氣體所產生之缺點。此外，由於沒有接合處 破裂之可能’因而不會產生鑄造之缺點，且不需要對因間 隙所產生之多餘鑄塊片做後續處理，亦可提高產能。 對熟知此項技藝者而T，本發明之其他實體可籍由在 此所揭示關於本發明之內容及操作而更加明白。内容及實 例僅係提供範例，本發明之真正標的I精神，將由隨後之 申請專利範園加以說明β 圖號說明 10 套筒區段 12 接收空間 20 頸縮模芯區段 22 切口部份 24 突起 本紙張尺度適用中國國家棣準（CNS } Α4规格（210X297公釐） (1聞讀背面之注意事項寫本頁) 訂' -妒！ '! 經濟部智慧財產局員工消費合作社印製- -7-4 5391 9 A7 B7 V. Description of the invention (1.) Background of the invention, 1.) Continued inventions C. Please read the back first. Weeping matters written in this book) The present invention relates to a riser sleeve, which is particularly special The sleeve is integrated with a necked mold core. 2.) Description of related technologies Generally speaking, riser sleeves are often used to cast cast iron, cast steel, stainless steel, and special steels including manganese steel and chrome steel. A necking mold core is additionally attached to the bottom of the riser sleeve so that it can be easily separated from the riser sleeve after forging such materials. U.S. Patent No. 5,299,625 discloses such a riser sleeve with a necking die attached to the bottom of the sleeve. This necking mold core is generally made of a material with relatively high fire resistance and thermal insulation capabilities, so the material disintegrated in the mold core will not cure faster than the casting. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. However, in the structure of the riser sleeve mentioned above, the necked mold core is manufactured separately and is attached to the bottom of the riser sleeve by an adhesive. If the adhesion is damaged or cracked, the metallurgy < metal will flow into the gap caused by cracking, forming a fin-like extra cast. This will cause defects in the casting. The adhesive used to bond the neck mold core to the riser sleeve will also interact with the distorted metal during the forging process, and generate gas after the action. SUMMARY OF THE INVENTION Accordingly, the present invention is directed to solving the above problems. The purpose of the present invention is to provide a riser sleeve that combines the shrink mold core into one body to avoid the disadvantages of the pound making tweezers. Please refer to the Chinese paper standard (CNS) A4 Zhuge X 297 mm) -4- 4 53 9 1 9 Α7 _— 一 Β7 5. Invention Description Ding 2 ·) — ^?-To achieve the above Aim, the feeder sleeve proposed by the present invention comprises a sleeve section defining a casting space, and a necking mold core section extending from the lower end of the sleeve section and integrated with the sleeve. The necking mold core section has an opening having a cutout portion formed along an inner edge of the opening. The core section is made of ceramic fiber, silica, alumina, chromite and zirconium, at least one of which is selected from the group of materials. The brief description of the drawings is incorporated into the accompanying drawings and forms a part of the content of the present invention to explain the substance of the present invention, and together with the following description as an explanation of the processing of the present invention: The preferred entity 'is a cross-sectional view of a feeder sleeve with a necking die core; Figure 2 is a cross-sectional view of another preferred entity according to the present invention, a feeder sleeve with a necking die core; and Figure 3 A further preferred entity according to the invention is a cross-sectional view of a riser sleeve with a necked die core. Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-Detailed description of the preferred entity Here, the preferred entity of the present invention will be described in detail with reference to the drawings. Figure 1 shows a riser sleeve with a necked die core according to a preferred entity of the present invention. The riser sleeve of the present invention includes a sleeve section 10 and a necking mold core section 20. The sleeve section 10 may be V-shaped or U-shaped. The necking mold Zhang Ye uses Zhongjia scale (qns) Αβϋ (21GX297 public gold) ---- 453 91 9 A7 B7 V. Description of the invention (3 ·) The core section 20 is a part of the bottom of the sleeve section 10 . On the inner wall of the sleeve section 10, a receiving space 12 of a tritium metal is defined, and on the inner edge of the body along the neck mold core section 20, there are all opening sections 22. The sleeve section 10 is generally made of an exothermic or insulating material. The necking mold core section is made of a material with high heat resistance and thermal insulation. The selection of the material depends on the castings, which are made of silica, climbing, chromite and zircon. The material group is formed, or at least a mixture of the material group and the ceramic fiber is selected. -The method for forming the riser sleeve according to the present invention will be described below. The necking mold core section 20 is first formed into a predetermined shape with a mixture of ceramic fiber, phenol resin, and alumina, and then the sleeve section 10 is formed by, for example, vacuum processing. At this time, the filler material to be added to the neck mold core section 20 is selected from the group consisting of silica, alumina, chromite and zircon. "Inorganic or organic binders (binder ) As a binding material. Mixtures of inorganic and organic binders can also be used. Inorganic binders can be selected from a group of materials consisting of silica sol, alumina sol, polypile and refractory. The organic binder is selected from the group consisting of dry grease and phenol resin. After the sleeve section 10 and the necked glow core section 20 are formed integrally, heat treatment is performed at a temperature of 180 ° C to 200 ° C for about 2 hours. Therefore, when casting, for example, high-manganese steel, using a tool such as a small iron hammer, etc., the ingots generated vertically on the casting can be easily removed from the sleeve section through the cutout portion 22 of the neck core section 20 Fig. ^ Figure; is a cabinet. Another preferred entity according to the present invention. This paper size applies to Chinese national standard (CNS) M specification (? 10 > < 297mm) (Please read the precautions on the back before filling out this page} Order-11. -Key-Staff Consumption of Property Bureau, Ministry of Economy Printed by the cooperative--6-4 53 9 1 9 A7 B7 V. Description of the invention (4.) The figure shows that the inner edge of the neck mold core section 20 can form a multi-step shape to obtain the effect of the cut. 'It can be seen from FIG. 3 that the necking mold core section 20 according to the present invention has a protrusion 24 formed along the outer circle of this section. This protrusion 24 can be used to prevent the mold sand from raising the sleeve 10 when preparing the mold. Push up, or avoid the riser sleeve being pushed up due to the buoyancy of the tritium metal. In the structure of the above riser sleeve, since the necking mold core section is integrally formed with the sleeve section, it is not necessary Adhesive is used to adhere to the neck mold core, and no after-effect gas is generated. Therefore, the disadvantages caused by the gas in the casting can be reduced. In addition, there is no possibility that the joint will break. Does not have the disadvantages of casting, and does not need to The subsequent production of the excess ingot pieces can also improve productivity. For those skilled in the art, other entities of the present invention can be made clearer by the content and operation of the present invention disclosed herein. Content and The example is only an example. The true spirit of the present invention will be explained by the following patent application. Β Drawing number description 10 Sleeve section 12 Receiving space 20 Neck mold core section 22 Notch section 24 Protruding paper Standards are applicable to China National Standards (CNS) Α4 size (210X297 mm) (1 notes on the back of this article to write this page) Order '-jealous!'!