經濟部中央標準局員工消費合作社印製 491737 A7 ____ B7 五、發明説明（1 ) 發明領域： 本發明係有關於一種擠管整形式另件製造方法，尤指 一種藉由油壓擠管並配合管口壓平整形的方式來製造另件 或管接頭，以改善傳統以鑄造方式製造另件所造成之缺 失。 發明背景： 在現今產業界蓬勃發展中，配管材的使用亦愈來愈受 重視。一般之配管材如另件、彎管或管接頭等，除了要求 能易於大量生產以降低製造成本外，產品的儲存運輸成 本、耐腐蝕性及使用壽命更是影響市場競爭力的重要因素 之一，在如今配管材製造業的激烈競爭環境之下，如何能 以更低成本、更快製程生產出更大量、更耐用且更易於運 輸儲存的配管材產品，實在是業者最爲重視的課題之一。 惟，傳統的另件多是以砂模鑄造的方式來生產製造， 此種習用的另件鑄造方式具有許多缺失，茲列述如下： (1) 鑄造的方式來生產另件，常需要大量的人工， 由人工來控制生產流程不僅使得另件產品的品質常因人因 時變化而不易控制，且亦不易以全自動化的方式來進行大 量生產。 (2) 鑄造所用的鑄鐵材料雖較便宜，然而卻因此導 致由砂模鑄造所生產的另件成品的材質無法穩定控制，每 一批生產出來的另件的品質強度不一，更具有易脆且強度 差之缺點，爲了使產品能具有足夠的強度，鑄造出的另件 2 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ^---Π---_--0^--T---訂* I -.---- (請先閲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 491737 A7 --- ------B7 五、發明説明（2 ) 管壁必須較爲厚重許多，反而因此增加了產品庫存及運送 的成本。 (3) 由於一般配管材的直管均是以油壓擠管的方式 製造而成，其直管於材料的電性與鑄造而成的另件並不相 同’當直管與另件組裝後，其接觸面因電位差的因素而極 易發生腐蝕的現象，造成使用壽命的降低。 (4) 鑄造而成的另件表面不僅較爲粗糙且具有大量 的毛細孔及砂孔，使得另件表面的塗裝（例如防鏽塗裝、 粉體塗裝或是PE熱熔襯塗裝）難以進行，不僅常在另件表 面形成氣泡，且更易於脫落，導致使用壽命的降低。 緣是，本發明人有鑑於上述缺失之可改善，乃特秉其 生產、銷售配管材多年的經驗，潛心全力加以研究，並配 合學理的運用，終於研創出一種可有效改善上述缺失之本 發明。 即，本發明之主要目的，係在於提供一種另件製造方 法，可具有易於自動化生產、節省管材、成品較輕易於儲 存運、不易腐蝕、表面光滑易於塗裝、且使用壽命長等 優點。 本發明之另件製造方法，可包括有下列步驟：（Α) 以擠管裁截或熱滾軋擠管的方式成形擠出適當曲度與適當 長度的中空管體，其中該管體的管端具有一管口。（Β) 將該管體置入一適當形狀的模具中以油壓成形的方式將管 體之管端附近的曲度整形變直，使管體之管端係呈平直延 3 ^Ί-----裝—J—訂—^----- (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） 經濟部中央標準局員工消費合作衽印製 491737 A7 __B7_ 五、發明説明（3 ) 伸而不具曲度。以及（C)將該管體的兩管口加以整平， 使管口與管端呈垂直狀態，而完成另件的製造。 本發明之方法所製造出的另件，由於材料係相同於直 管，因此直管與另件組裝後不會產生電位差的困擾，因此 不易腐蝕且較爲耐用。並且，以擠管整形的方式製造另件 可易於施行自動化生產以節約人力。此外，以擠管方式製 造的另件管體，不僅可具有管壁較爲光滑、輕薄且強度較 佳之優點，可易於進行塗裝且更能節省產品的運輸及庫存 成本。 爲讓貴審查委員能對本發明之目的、特徵及功效， 有進一步的瞭解與認同，茲配合圖式詳加說明如后： 圖式之簡單說明： 圖一係本發明之油壓擠管加工之實施例示意圖。 圚二係本發明之經油壓擠管加工所得之管體3。 圖三係本發明之管端31整形變直加工之實施例示意圖。 圖四係本發明之管口 32整形變平加工之實施例示意圖。 圖五係本發明之管端31a整直與管口 32a整平之另一實施例 示意圖。 圖六係本發明之管體3b成形方式之另一實施例示意圖。 圖式中之圖號說明： 1、la直管 2機台 21通道 22曲管柱 23火爐 3、3a、3b管體 4 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 、 ^ τ 裝----^---訂—^----- (請先閲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繁 491737 A7 ____B7__ 五、發明説明（4 ) 31、31a管端 32、32a管口 4、 4a外模 41、41a管模 5、 5a內模 51凸緣 由於一般配管材的直管均是以油壓擠管的方式製造而 成，本發明爲了避免因採用鑄造方式所生產的另件所造成 之種種缺點，特採用和直管相同的金屬材料來製造配管材 另件。本發明之擠管整形式另件製造方法之一第一實施例 包括有下列步驟= (1) 將一金屬材料（可以黑鐵或不銹鋼爲較佳）以 油壓熱擠成形的方式擠壓製成適當直徑的連續性中空直 管，此步驟和一般習用的無縫直管所用的材料及製造方式 皆相同。 (2) 如圖一所示，將該直管1以油壓機（圖中未示） 擠入一具適當曲度之通道21的機台2內，該通道21的直徑 係相同於直管1直徑，於通道21周圍可持續加熱維持一定 的溫度使通道21內的直管1較易於變形，且通道21彎曲的 曲度係逐漸由小增大至一預定的曲度，使通道21內的直管 1亦被擠壓而彎曲成適當曲度的管體。 (3) 於通道21的末端出口處以一裁截機（圖中未 示）將彎曲的管體3裁截成如圖二所示之適當長度的管體 3，該管體3的管端31具有一管口32。 (4) 將該管體3置入一適當形狀的模具中以油壓成形 的方式將管體3之管端31附近的曲度整形變直，使管體3之 管端31係呈平直延伸而不具曲度。 5 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) " ~ (請先閲讀背面之注意事項再填寫本頁) •裝· 訂 經濟部中央標準局員工消費合作社印製 491737 A7 _____B7_ 五、發明説明（J ) (5) 將該管體3的管口32加以整平，使管口32與管端 31呈垂直狀態，而完成另件的製造。 (6) 製造完成後的另件，可選擇另以滾溝機或切溝 機（圖中未示）對其管端附近處進行槽溝加工，使其成爲 具有管端槽溝的另件。 (7) 製造完成後的另件，亦可選擇另外再對其表面 施以防鏽塗裝、粉體塗裝或是PE熱熔襯塗裝等之塗裝加 工，以增進另件的美觀性及抗腐蝕性。 其中，本發明之該第（4)及第（5)步驟中的管端31 整直以及管口 32整平之兩加工步驟在本發明中是屬於非常 重要的步驟。此乃因爲以油壓熱擠成形的管體3，其管端 31附近仍會維持一定的曲度（如圖二所示），連帶使得其 管口32也會呈傾斜狀態，而導致在組裝直管與另件時發生 配合上的困難。本發明藉由將管端31及管口32整直整平， 將可使本發明之另件與直管完美地組接，而完全避免習用 技術的缺失。以下將對管端31及管口32整直整平的加工方 式作一介紹： 請參閱圖三，該第（4)步驟中所述的模具包括有一 外模4及一內模5，該外模4大致上係依據管體3的外型設 計，但於外模4近管體3管端31附近係設有平直延伸的直管 模41部份，使得將管體3壓置入外模4中時，管體3的管端 31附近將受直管模41擠壓而成平直延伸不具有曲度，同 時，該內模5係呈一直圓柱狀且其外徑係相同於中空管體3 的內徑，當將管體3壓置入外模4中時，該內模5亦同時由 6 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）~~ ~ ^I Ί I 批衣 Ml n I ^ 1111 (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繁 491737 A7 ___B7 五、發明説明（6 ) 管口32壓置入管體3內之管端31內一適當深度，使管端31 附近之管體3內徑亦呈平直延伸，於是便可將管體3之管端 31附近加以整形變直以便與直管組接。 請參閱圖四，經前述方式整形變直後的管體3，可藉 由一裁截機6對管體3之管口32部份進行加工車平，使管口 32與管端31呈垂直狀態，而完成另件的製造。 以下所述本發明之其他較佳實施例中，如果述及元件 之構造或功能係類同於前述元件者，皆加以相同之標號及 名稱者。 請參閱圖五，爲本發明對管端整直及管口整平之加工 方式的另一實施例。該模具亦包括有一外模4a及一內模 5a，該外模4a亦係依據管體3a的外型設計，且於外模4a近 兩管端31a附近也設有平直延伸的直管模41a部份，可將管 體3a的管端31a附近擠壓成平直延伸不具曲度。同時，該 內模5a亦呈圓柱狀且該內模5a於近前端處更設有一凸緣 51，內模5a前端的外徑係同於管體3a內徑而可由管口32a 壓置入管端31a內一適當深度，該內模5a之凸緣51的外徑 係大於管體3a外徑，可壓迫管體3a的管口32a加以擠壓整 平，而使管口32a與管端31a呈垂直狀態。 請參閱圖六，本發明之擠管整形式另件製造方法之第 二較佳實施例可包括有下列步驟： (1)將一金屬板材（可以黑鐵或不銹鋼板材爲較 佳）以滾輪熱滾軋配以高週波接合的方式形成適當直徑的 7 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇>< 297公釐） ~ ^ .. 裝 ·· 訂 (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局負工消費合作社印製 491737 A7 B7 五、發明説明（了） 中空直管並加以裁截成適當的長度，此步驟和一般習用的 有縫直管所用的材料及製造方式皆相同。 (2) 如圖六所示，將該適當長度的直管la以油壓機 (圓中未示）一個一個地套擠入一具適當曲度之煙斗狀曲 管柱22內，該曲管柱22的入口端直徑係相同於直管la內 徑，於曲管柱22周圍可以一火爐23持續加熱維持一定的溫 度使套於曲管柱22上的直管la較易於變形，且曲管柱22彎 曲的曲度及直徑係逐漸由小增大至一預定的曲度及直徑， 使管柱22上的直管la亦被擠壓而彎曲成適當曲度與適當管 徑的管體3b，該管體3b同樣具有管端及管口。 (3) 將該管體3b以前述圖三或圖五中所示之方式將 管體3b之管端附近的曲度整形變直，使管體3b之管端呈平 直延伸而不具曲度。 (4) 將以前述圖四或圖五中所示之方式該管體3b的 管口加以整平，使管口與管端呈垂直狀態，而完成另件的 製造。 (5) 製造完成後的另件，同樣可選擇另以滾溝機或 切溝機（圖中未示）對其管端附近處進行槽溝加工’使其 成爲具有管端槽溝的另件；或亦可選擇另外再對其表面施 以防鏽塗裝、粉體塗裝或是PE熱熔襯塗裝等之塗裝加工’ 以增進另件的美觀性及抗腐蝕性。 在此需強調的是，在本第二較佳實施例中之該第 (3)及第（4)步驟中的管端整直以及管口整平之兩加工 8 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 、 I.—：------裝— (請先閲讀背面之注意事項再填寫本頁) 打 491737 A7 B7 五、發明説明（J ) 步驟在本發明中仍是屬於非常重要的步驟，其原因已於前 面說明，故在此不再加以贅述。 綜上所述，由本發明之油壓擠管加整形方法所製造出 的另件，由於所使用的金屬材料係相同於直管之管材，因 此直管與另件組裝後絕不會產生電位差，所以不會發生腐 蝕且更爲耐用。並且，以擠管整形的方式來製造另件可易 於施行自動化的大量生產以節約人力，進而降低生產成 本。此外，以擠管方式所製造的另件管體，不僅可具有管 壁較爲光滑、輕薄且強度較佳之優點，更易於進行塗裝加 工且更能節省產品的運輸及庫存成本，而可有效防止習用 鑄造另件的種種缺失，的確是具有實用性、新穎性及進步 性之高度創作者。 當然，以上所述僅爲本發明之較佳實施例，其不應侷 限本發明之實施範圍’例如，本發明並不僅侷限於只能運 用於如圖示中所示之90°彎頭另件’而亦可實施於如45° 彎頭另件、三通管另件、順水梯另件或是大小頭另件等 者。因此，凡根據發明內容所作之若干修改’而不逾越本 發明之精神時，皆應屬本發明之範圍者。 ： ； 裝----:---訂—·----- (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 9 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ 297公釐）Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 491737 A7 ____ B7 V. Description of the invention (1) Field of the invention: The present invention relates to a method for manufacturing a whole form of extruded pipe, especially a method of extruding a pipe by oil and cooperating with it. Nozzles are flattened to make parts or pipe joints to improve the lack of traditional parts made by casting. Background of the Invention: In today's booming industry, the use of piping has become increasingly important. In addition to general pipe fittings such as spare parts, elbows or pipe joints, in addition to requiring easy mass production to reduce manufacturing costs, product storage and transportation costs, corrosion resistance and service life are one of the important factors affecting market competitiveness. In today's fierce competition environment of the pipe manufacturing industry, how to produce a larger amount, more durable and easier to transport and store pipe products at a lower cost and faster process is really the most important issue for the industry. One. However, traditional parts are mostly manufactured by sand mold casting. This conventional method of casting parts has many shortcomings, which are listed as follows: (1) Casting to produce parts often requires a large amount of Manual, manual control of the production process not only makes the quality of another product often difficult to control due to changes in time, but also makes it difficult to carry out mass production in a fully automated manner. (2) Although the cast iron material used for casting is cheaper, the material quality of the finished parts produced by sand mold casting cannot be stably controlled. The quality and strength of each produced part is different, and it is more brittle. And the disadvantage of poor strength, in order to make the product have sufficient strength, the cast of the other 2 paper size applies to Chinese National Standard (CNS) A4 specifications (210X297 mm) ^ --- Π ---_-- 0 ^-T --- Order * I -.---- (Please read the notes on the back before filling out this page) Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 491737 A7 --- ----- -B7 V. Description of the Invention (2) The pipe wall must be much thicker, which increases the cost of product inventory and transportation. (3) Since the straight pipes with general piping materials are all manufactured by oil squeezed pipes, the electrical properties of the straight pipes are not the same as those of the cast parts. 'When the straight pipe and the parts are assembled, , Its contact surface is prone to corrosion due to the potential difference, which reduces the service life. (4) The surface of the cast part is not only rough, but also has a large number of pores and sand holes, which makes the surface of the part (such as anti-rust coating, powder coating or PE hot-melt lining coating). ) Difficult to carry out, not only often form bubbles on the surface of other parts, but also easier to fall off, leading to a reduction in service life. The reason is that in view of the above-mentioned defects that can be improved, the inventor has devoted himself to the research and development of pipes for many years, devoted himself to the research, and cooperated with the application of theories to finally develop an invention that can effectively improve the above-mentioned defects. . That is, the main object of the present invention is to provide an alternative method of manufacturing, which can have the advantages of easy automation production, saving pipes, easier storage and transportation of finished products, non-corrosion, smooth surface, easy coating, and long service life. The method for manufacturing another part of the present invention may include the following steps: (A) forming a hollow tube body with an appropriate curvature and an appropriate length by extruding the tube or cutting the tube by hot rolling; The pipe end has a nozzle. (B) The pipe body is put into a mold of an appropriate shape, and the curvature near the pipe end of the pipe body is straightened by oil pressure forming, so that the pipe end system of the pipe body is extended straight 3 ^ Ί- ---- Packing—J—Order — ^ ----- (Please read the notes on the back before filling in this page) This paper size applies to China National Standard (CNS) Α4 specification (210 × 297 mm) Central Standard of the Ministry of Economic Affairs Bureau's consumer cooperation print 491737 A7 __B7_ V. Description of Invention (3) It is extended without curvature. And (C) level the two nozzles of the pipe body so that the nozzle and the pipe end are in a vertical state to complete the manufacture of another part. The parts manufactured by the method of the present invention have the same material as the straight pipe, so there is no potential difference between the straight pipe and the parts after assembly, so it is not easy to corrode and is relatively durable. In addition, the manufacture of other parts by extrusion molding can be easily automated to save manpower. In addition, the other pipe body manufactured by the extrusion method can not only have the advantages of smoother, thinner and better strength of the pipe wall, but also be easier to coat and save transportation and inventory costs. In order to allow your reviewers to further understand and approve the purpose, characteristics and effects of the present invention, we will explain it in detail with the drawings as follows: Brief description of the drawings: Figure 1 shows the processing of the hydraulic squeeze pipe of the present invention. Example schematic. The second unit is the pipe body 3 obtained by the hydraulic extrusion pipe processing of the present invention. FIG. 3 is a schematic diagram of an embodiment of the straightening process of the tube end 31 of the present invention. Fig. 4 is a schematic diagram of an embodiment of the shaping and flattening of the nozzle 32 of the present invention. Fig. 5 is a schematic diagram of another embodiment of straightening the pipe end 31a and flattening the mouth 32a of the present invention. FIG. 6 is a schematic diagram of another embodiment of the forming method of the pipe body 3b of the present invention. Explanation of drawing numbers in the drawing: 1. la straight tube 2 machine 21 channel 22 curved pipe column 23 furnace 3, 3a, 3b pipe body 4 This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm), ^ τ Equipment ---- ^ --- Order-^ ----- (Please read the precautions on the back before filling out this page) Staff Consumer Cooperatives, Central Standards Bureau, Ministry of Economic Affairs, Yinfan 491737 A7 ____B7__ 5. Description of the invention ( 4) 31, 31a pipe ends 32, 32a pipe mouth 4, 4a outer die 41, 41a pipe die 5, 5a inner die 51 flanges because straight pipes for general piping are made by hydraulic extrusion, In order to avoid various disadvantages caused by the other parts produced by the casting method, the present invention uses the same metal material as the straight pipe to manufacture the other pipe parts. A first embodiment of a method for manufacturing an extruded tube integral form according to the present invention includes the following steps: (1) Extruding a metal material (preferably black iron or stainless steel) by means of hydraulic hot extrusion forming To form a continuous hollow straight pipe with an appropriate diameter, the material and manufacturing method used in this step are the same as those of the conventional conventional seamless straight pipe. (2) As shown in Figure 1, the straight pipe 1 is squeezed into a machine 2 with an appropriate curvature channel 21 by a hydraulic machine (not shown). The diameter of the channel 21 is the same as the diameter of the straight pipe 1. The continuous heating and maintaining a certain temperature around the channel 21 makes the straight tube 1 in the channel 21 easier to deform, and the curvature of the channel 21 is gradually increased from small to a predetermined curvature, so that the straightness in the channel 21 is straight. The tube 1 is also extruded and bent into a tube body with an appropriate curvature. (3) Cut the bent pipe body 3 into a pipe body 3 of an appropriate length as shown in FIG. 2 at the end exit of the channel 21 with a cutting machine (not shown), and the pipe end 31 of the pipe body 3 Has a nozzle 32. (4) Put the pipe body 3 into a mold of an appropriate shape and straighten the curvature near the pipe end 31 of the pipe body 3 by hydraulic forming to straighten the pipe end 31 of the pipe body 3 Extend without curvature. 5 This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) " ~ (Please read the precautions on the back before filling out this page) • Binding and ordering printed by the Central Consumers Bureau of the Ministry of Economic Affairs Consumer Cooperatives 491737 A7 _____B7_ V. Description of the invention (J) (5) The nozzle 32 of the pipe body 3 is flattened so that the nozzle 32 and the pipe end 31 are in a vertical state to complete the manufacture of another part. (6) After the manufacturing of the other parts, you can choose another groove rolling machine or a groove cutting machine (not shown) to perform groove processing near the pipe end to make it another pipe groove. (7) After the manufacture of other parts, you can also choose to apply anti-rust coating, powder coating or PE hot-melt lining coating to the surface to improve the aesthetics of the other parts. And corrosion resistance. Among them, the two processing steps of straightening the pipe end 31 and flattening the nozzle opening 32 in the (4) and (5) steps of the present invention are very important steps in the present invention. This is because the pipe body 3 formed by hydraulic pressure extrusion will still maintain a certain degree of curvature near the pipe end 31 (as shown in Fig. 2), and the pipe mouth 32 will also be inclined, which will result in assembly. Difficulties in fitting the straight pipe with the other parts. By straightening and flattening the pipe end 31 and the mouth 32, the present invention can perfectly connect the other parts of the present invention with the straight pipe, and completely avoid the lack of conventional technology. The following describes the straight and flat processing method of the pipe end 31 and the mouth 32: Please refer to FIG. 3. The mold described in the step (4) includes an outer mold 4 and an inner mold 5. The mold 4 is basically designed according to the appearance of the pipe body 3, but a straight pipe mold 41 extending straight is arranged near the pipe mold 31 near the pipe end 31 of the outer mold 4, so that the pipe body 3 is pressed into the outside. When the mold 4 is in the vicinity of the tube end 31 of the pipe body 3, the straight tube mold 41 is squeezed to form a straight extension without curvature. At the same time, the inner mold 5 is straight and the outer diameter is the same as that of the middle. The inner diameter of the empty pipe body 3, when the pipe body 3 is pressed into the outer mold 4, the inner mold 5 is also composed of 6 paper sizes at the same time as the Chinese National Standard (CNS) A4 specification (210X297 mm) ~~~ ^ I Ί I batch of clothes Ml n I ^ 1111 (Please read the precautions on the back before filling this page) Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, Yinfan 491737 A7 ___B7 V. Description of the invention (6) The nozzle 32 is placed under pressure A proper depth in the pipe end 31 in the pipe body 3 makes the inner diameter of the pipe body 3 near the pipe end 31 also extend straight, so that the vicinity of the pipe end 31 in the pipe body 3 can be shaped To direct contact with the straight tube group. Please refer to FIG. 4. After the pipe body 3 which has been shaped and straightened in the foregoing manner, a cutting machine 6 can be used to process and turn the pipe mouth portion 32 of the pipe body 3 to make the pipe mouth 32 and the pipe end 31 vertical. , And complete the manufacture of the other parts. In other preferred embodiments of the present invention described below, if the structure or function of an element is referred to as the aforementioned element, the same reference numerals and names are used. Please refer to FIG. 5, which is another embodiment of the processing method for straightening the pipe end and flattening the nozzle. The mold also includes an outer mold 4a and an inner mold 5a. The outer mold 4a is also designed according to the appearance of the pipe body 3a, and a straight pipe mold is also provided near the two pipe ends 31a of the outer mold 4a. In part 41a, the vicinity of the pipe end 31a of the pipe body 3a can be extruded into a straight extension without curvature. At the same time, the inner mold 5a is also cylindrical and the inner mold 5a is further provided with a flange 51 near the front end. The outer diameter of the front end of the inner mold 5a is the same as the inner diameter of the pipe body 3a and can be pressed into the pipe by the mouth 32a. An appropriate depth in the end 31a, the outer diameter of the flange 51 of the inner mold 5a is larger than the outer diameter of the pipe body 3a, and the mouth 32a of the pipe body 3a can be pressed and flattened, so that the mouth 32a and the pipe end 31a It is vertical. Please refer to FIG. 6. The second preferred embodiment of the method for manufacturing an extruded tube integral form according to the present invention may include the following steps: (1) a metal plate (which may be black iron or stainless steel plate is preferred) is heated by a roller Rolling with high frequency bonding to form 7 suitable diameters. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (21〇 > < 297mm) ~ ^ .. Order (Please read the back first Please pay attention to this page, please fill out this page) Printed by the Central Bureau of Standards, Ministry of Economic Affairs and Consumer Cooperatives 491737 A7 B7 V. Description of the invention (Hollow) Straight hollow tube and cut it to an appropriate length, this step and the conventional custom The materials and manufacturing methods of the tubes are the same. (2) As shown in FIG. 6, the straight pipe 1a with an appropriate length is sleeved one by one by a hydraulic press (not shown in the circle) into a pipe-shaped curved pipe column 22 with an appropriate curvature. The diameter of the inlet end is the same as the inner diameter of the straight pipe la. A stove 23 can be continuously heated around the curved pipe string 22 to maintain a certain temperature to make the straight pipe la sleeved on the curved pipe string 22 easier to deform, and the curved pipe string 22 The bending curvature and diameter are gradually increased from small to a predetermined curvature and diameter, so that the straight pipe la on the pipe string 22 is also squeezed and bent into a pipe body 3b with a proper curvature and a proper diameter. The pipe body 3b also has a pipe end and a nozzle. (3) The pipe body 3b is shaped and straightened in the manner shown in the foregoing FIG. 3 or FIG. 5 near the pipe end of the pipe body 3b, so that the pipe end of the pipe body 3b extends straight without curvature. . (4) The nozzle of the pipe body 3b is leveled in the manner shown in the aforementioned Figure 4 or Figure 5 so that the nozzle and the pipe end are in a vertical state to complete the manufacture of another part. (5) After the manufacture of the other parts, you can also choose another groove rolling machine or a groove cutting machine (not shown in the figure) to groove the vicinity of the pipe end to make it a pipe end groove. ; Or you can choose to apply anti-rust coating, powder coating or PE hot-melt lining coating to its surface to improve the aesthetics and corrosion resistance of other parts. It should be emphasized here that in the second preferred embodiment, the two processes of the straight end of the tube and the flattening of the nozzle in the steps (3) and (4) of the second preferred embodiment are applicable to the Chinese national standard ( CNS) A4 specification (210X297 mm), I.—: ------ install— (please read the notes on the back before filling out this page) Type 491737 A7 B7 V. Description of the invention (J) The steps are in the present invention China is still a very important step, and the reason has been explained earlier, so it will not be repeated here. To sum up, the other parts manufactured by the method of oil-extruded pipe and shaping of the present invention, because the metal material used is the same as the straight pipe, there will never be a potential difference after the straight pipe is assembled with the other parts. So it does not corrode and is more durable. In addition, it is easy to implement automated mass production to manufacture another part by extruding and shaping the tube to save labor and reduce production costs. In addition, the other pipe body manufactured by the extrusion method can not only have the advantages of smoother wall, lighter weight and better strength, but also be easier to paint and process, and can save product transportation and inventory costs. It is indeed a highly creative creator with practicality, novelty, and progressiveness to prevent the lack of various conventional castings. Of course, the above description is only a preferred embodiment of the present invention, and it should not limit the scope of implementation of the present invention. For example, the present invention is not limited to only the 90 ° elbow parts shown in the figure. 'And it can also be implemented in 45 ° elbow parts, tee parts, down-water ladder parts or large and small head parts. Therefore, any modifications made according to the content of the invention without exceeding the spirit of the invention should fall within the scope of the invention. ： ； Install ----: --- Order- · ----- (Please read the precautions on the back before filling out this page) Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 9 This paper size applies to Chinese national standards (CNS) Α4 specification (210 × 297 mm)