200408470 B7 五、發明說明U ) 本發明係關於一種經擠製、旋壓成型之汽機車輪 圈之製法。 I------------· 11 (請先閱讀背面之注意事項再填寫本頁) 習知之汽車輪圈（wheel rim)—般係依下法加以製 作者： (1) 裁切金屬板使成矩形至適當之尺寸大小； (2) 將矩形金屬板成型為圓管，並焊合缺口； (3) 圓管經滾軋成型（roll-formed)為輪圈。 但此種習知之輪圈之製法有以下之缺點： (1) 由於輪圏製自單層板，故輪圈之強度大部份取決 於所選用板材之厚度者。較厚的板材可提昇製成 輪圈之強度，但成型厚重之板材輒需不同而堅強 之大型機具才能加工成型，徒增製作成本。 -丨線· (2) 矩形板於成型為圓管時須加焊接，而焊接之品質 常有良窳，如焊接不佳，產生縫隙，則劣化成品 之強度，而焊接過程與焊后之表面處理亦增加製 作手續與成本。 經濟部智慧財產局員工消費合作社印製 (3) 每一具輪圈獨立製自矩形板，是為分批製作（batch process)，無法連續製作，降低生產效率。 本案發明人有鑒於此，乃加研究改良，揭示本發 明新穎之經擠製、旋壓成型之汽機車輪圈之製法。 本發明之目的，旨在提供一種經擠製、旋壓成型 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 200408470 經濟部智慧財產局員工消費合作社印製 A7 ____ Β7___ 五、發明說明（丄） 之汽機車輪圈之製法，係包括下列步驟者： (1) 以擠製（extrusion)方式製作鋁合金或金屬中空管 其管直徑相同於汽機車輪圈之直徑者； (2) 等距裁斷成多數圓筒段； (3) 以旋壓（spinning)或剪力旋壓（shear spinning)成型 位於圓筒段相對之兩端使成一對凸緣俾能嵌裝輪 胎之胎唇者；以及 (4) 表面處理使成為汽機車輪圈者。 本發明之可取實體，可由以下說明書配合所附諸 圖式而得以明晰之。 圖式之簡單說明： 第1圖係本發明製程之流程圖。 第2圖係本發明各步驟中所製作而成之階段性產品 剖面示意圖。 參閱諸圖式，本發明之製法係包括下列步驟者： (1) 以擠製（extrusion，1)方式製作成型鋁合金等金屬 中空管（P)，其管直徑約相同於汽機車輪圈之直徑 者； (2) 等距裁切（2)成多數圓筒（cylinder)段（C); (3) 以旋壓（spinning)或剪力旋壓（shear spinning)(或 其他加工法）成型（3)位於圓筒段相對之兩端使成 一對或兩個凸緣（Ft，F2)，俾能嵌裝輪胎之胎唇 __4___ 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------------裝--- (請先閱讀背面之注意事項再填寫本頁) 訂： --線· 200408470 A7 B7 五、發明說明（士） 者；以及 (4)表面處理（4)使成完美之汽機車輪圈之最終產品 者。 其中使用旋壓（spinning)之加工方式以製作位於 圓筒段（C)兩端之凸緣（Fi，F2)時，可以一陽模，配合 外面之進給滾輪以旋壓成型有凹凸斷面之各凸緣 ⑴，F2)者。 必要時於各凸緣（Fi或F2)與圓筒段（C)之圓筒交界 處可加工成厚度（v'肉厚〃）較厚者以便利用螺栓鎖固 輪盤（disk)俾安裝車輛輪軸者。 本發明製法優異、進步於習知輪圈之製法者有以 下幾點： (1) 以擠製（extrusion)方式可以擠製、押出成型為極長 之中空管，如是再來裁切成各圓筒段，故製作之 過程較為簡單，大降製作成本。 (2) 既係擠製成型，而非將矩形板捲焊成圓形管，故 省去繁複之焊接及去除>焊症〃等表面處理步驟， 也無焊接品管上之問題，製作成本可予降低，且 強度不會弱化。 (3) 擠製步驟可採用一般製作大型鋼管之設備，不必 特別設計製作，故可節省部份生產設備之投資成 本。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------------裝--- (請先閱讀背面之注意事項再填寫本頁) · 經濟部智慧財產局員工消費合作社印製 200408470 A7 ^ ___B7___ 五、發明說明（/) 若輪圈使用在輕型機車之輪胎用時，該旋壓 (spinning)之步驟，亦可取代以環滾锻（ring roll forging)利用圓筒段之裡、外滾子加以滾壓位於圓筒 段（C)兩端凹凸之凸緣（Fi ’ F2)者，本發明並未加以限 制。 本發明之可取實體，可於不違本發明之精神及範 疇下加以修飾變化應用之’本發明實不限制之。 ------t (請先閱讀背面之注意事項再填寫本頁) 訂： 線· 經濟部智慧財產局員工消費合作社印製 格一規 ·λ4 (C 準 標 家 國 國 中 用 適 度 尺 張 紙 本 ¾ 公 7 9 9*-200408470 B7 V. Description of the invention U) The present invention relates to a method for manufacturing an extruded, spin-formed wheel rim of a steam turbine. I ------------ · 11 (Please read the notes on the back of this page to fill out) of a conventional car wheels (wheel rim) - like system to be producers according to dismount: (1) Cut the metal plate into a rectangle to an appropriate size; (2) Form the rectangular metal plate into a round pipe and weld the gap; (3) The round pipe is roll-formed into a rim. However, this conventional method of making rims has the following disadvantages: (1) Because the rim is made from a single layer plate, the strength of the rim largely depends on the thickness of the plate used. Thicker plates can increase the strength of the rims. However, heavy and heavy plates require different and strong large tools to be processed, which increases production costs. -丨 Line · (2) The rectangular plate must be welded when it is formed into a round pipe, and the quality of the welding is often good. If the welding is not good and there are gaps, the strength of the finished product will be deteriorated. The welding process and surface treatment after welding It also increases production procedures and costs. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (3) Each rim is independently produced from a rectangular plate, which is a batch process. It cannot be produced continuously and reduces production efficiency. In view of this, the inventors of the present case have studied and improved to reveal the novel method for manufacturing the wheel rim of an extruded and spin-formed steam turbine of the present invention. The purpose of the present invention is to provide an extruded, spin-formed paper that is sized to the Chinese National Standard (CNS) A4 (210 X 297 mm) 200408470 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ____ Β7 ___ 5 2. Description of the invention (i) The method of manufacturing a steam turbine wheel rim, which includes the following steps: (1) Extrusion method for making an aluminum alloy or metal hollow tube whose diameter is the same as the diameter of a steam wheel rim; ( 2) Isometrically cut into a large number of cylindrical sections; (3) Spinning or shear spinning are used to form the tires at opposite ends of the cylindrical section so that a pair of flanges can be fitted into the tire. Lip; and (4) surface finishes to make a wheel rim for a steam engine. The desirable substance of the present invention can be made clear from the following description in conjunction with the accompanying drawings. Brief description of the drawings: Figure 1 is a flowchart of the process of the present invention. Fig. 2 is a schematic cross-sectional view of a staged product manufactured in each step of the present invention. Referring to the drawings, the manufacturing method of the present invention includes the following steps: (1) Extrusion (1) is used to make a metal hollow tube (P) such as a molded aluminum alloy, and the diameter of the tube is approximately the same as that of a steam turbine wheel rim Diameter; (2) equidistant cutting (2) into most cylinder sections (C); (3) forming by spinning or shear spinning (or other processing methods) (3) A pair or two flanges (Ft, F2) are located at the opposite ends of the cylindrical section, which can fit the tire lip of the tire. 297 mm) -------------- Packing --- (Please read the precautions on the back before filling this page) Order:-line · 200408470 A7 B7 V. Description of the invention (Shi ); And (4) surface treatment (4) to make the final product of a perfect engine wheel rim. Where the spinning method is used to produce flanges (Fi, F2) at both ends of the cylindrical section (C), a male mold can be used to cooperate with the outside feed roller to spin-form the concave-convex section. Each flange ⑴, F2). If necessary, the flange (Fi or F2) and the cylindrical section (C) can be processed into a thicker (v 'meat thickness) thicker in order to use bolts to lock the disk (俾) to install the vehicle Axleman. The method of the present invention is excellent and has improved on the conventional method. (1) The extrusion method can be extruded and extruded into a very long hollow tube. If it is then cut into various pieces, Cylindrical section, so the production process is relatively simple, greatly reducing the production cost. (2) It is extruded, instead of welding rectangular plate coils into round tubes, so it eliminates the complicated welding and removal > welding treatment and other surface treatment steps, and there are no problems in welding quality tubes. The cost can be reduced without weakening the strength. (3) Extrusion steps can use general equipment for large-scale steel pipes, without special design and production, so it can save investment costs for some production equipment. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -------------- Loading --- (Please read the precautions on the back before filling this page) · Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs on 200408470 A7 ^ _B7___ V. Description of the Invention (/) If the rim is used for tires of light motorcycles, the spinning step can also replace the ring forging (Ring roll forging) The inside and outside rollers of the cylindrical section are used to roll the concave and convex flanges (Fi'F2) located at both ends of the cylindrical section (C), but the present invention is not limited. The desirable substance of the present invention can be modified and applied without departing from the spirit and scope of the present invention. The present invention is not limited thereto. ------ t (Please read the precautions on the back before filling out this page) Order: Line · Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs of the Consumer Cooperatives Standard λ4 (C quasi-standard home country with a moderate ruler On paper ¾ Male 7 9 9 *-