JPH0790304B2 - Powder can molding method - Google Patents
Powder can molding methodInfo
- Publication number
- JPH0790304B2 JPH0790304B2 JP25788089A JP25788089A JPH0790304B2 JP H0790304 B2 JPH0790304 B2 JP H0790304B2 JP 25788089 A JP25788089 A JP 25788089A JP 25788089 A JP25788089 A JP 25788089A JP H0790304 B2 JPH0790304 B2 JP H0790304B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- outer diameter
- finished product
- cylindrical
- body portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【発明の詳細な説明】 産業上の利用分野 本発明は、粉末、特に、プルトニウム微粉末体を内蔵
し、冷却するために使用される粉末缶の成形方法に関す
るものである。Description: FIELD OF THE INVENTION The present invention relates to a method for molding a powder can, particularly a powder can used to contain and cool a fine powder of plutonium.
従来の技術 このようなプルトニウム微粉末を内蔵し、冷却するため
に使用される容器である粉末缶は、円筒状の有底の缶本
体から形成され、この缶本体の内壁面には、微粉末体か
ら発生する熱を放出するために、数条の冷却用フィン
が、缶本体の内壁から放射状に中心軸に向かって突出す
るように形成されており、また、この缶本体の開口端部
には、微粉末体の出し入れ部として、小内径の円筒状部
が形成されており、このために、開口端部部分は、すぼ
んだ形状にされ、その小内径の円筒状部分の外周面に
は、雄ねじが加工されている。更に、この缶本体には、
その小内径の円筒状部の開口端部を閉塞するために、そ
の外径に対応する内径を有する有底の円筒状の蓋が、付
属されており、この蓋の円筒部の内周面には、缶本体の
小内径の円筒状部分の外周面に加工された雄ねじに対応
する雌ねじが、加工されている。2. Description of the Related Art A powder can, which is a container used for cooling such plutonium fine powder as a built-in container, is formed from a cylindrical bottomed can body, and the inner wall surface of the can body has a fine powder In order to release the heat generated from the body, several cooling fins are formed so as to project radially from the inner wall of the can body toward the central axis, and at the open end of the can body. Is formed with a cylindrical portion having a small inner diameter as a portion for loading and unloading the fine powder body. Therefore, the opening end portion is formed in a recessed shape, and the outer peripheral surface of the cylindrical portion having the small inner diameter is formed. , The male screw is processed. Furthermore, this can body has
In order to close the open end of the cylindrical portion with the small inner diameter, a bottomed cylindrical lid having an inner diameter corresponding to the outer diameter is attached, and the inner peripheral surface of the cylindrical portion of the lid is attached. A female screw corresponding to the male screw formed on the outer peripheral surface of the cylindrical portion having a small inner diameter of the can main body is machined.
このようにして、缶本体の内部に微粉末体を収納した
後、その開口端部に、Ｏリングを介装の下に、その雄ね
じに、蓋を、その雌ねじを介してねじ込むことにより、
缶本体に内蔵された微粉末体を、缶本体の内部に密閉す
るようにしている。In this way, after storing the fine powder body inside the can body, by screwing the lid at the opening end thereof under the O-ring, under the male screw, through the female screw,
The fine powder contained in the can body is sealed inside the can body.
すなわち、今、このような構成を有している典型的な粉
末缶の１例を図示すると、添付図面の第３及び４図のと
おりである。同図において、参照数字１は、粉末缶を示
すが、この粉末缶１は、缶本体２と、蓋３とから構成さ
れている。That is, an example of a typical powder can having such a configuration is illustrated in FIGS. 3 and 4 of the accompanying drawings. In the figure, reference numeral 1 indicates a powder can, which is composed of a can body 2 and a lid 3.
まず、これらの内、缶本体２は、円盤状の底部20と、こ
れに、その周辺において接続する円筒状の胴部21と、胴
部21の開口端部付近を、横断面が切頭円すい形状となる
ようにすぼまされ絞り部22と、その小径部に接続して形
成された小内径の円筒状の開口部23とから成り立ってお
り、この開口部23の外周面には、雄ねじ24が旋削されて
いる。First, among these, the can body 2 includes a disc-shaped bottom 2 0, in which a cylindrical body portion 2 1 connected at its periphery, in the vicinity of the opening end of the barrel 2 1, cross section and by the throttle portion 2 2 deflated as a truncated cone shape, its is composed from a small inner diameter of the cylindrical opening 2 3 formed by connecting the small diameter portion of the opening 2 3 the outer circumferential surface, male screw 2 4 is turned.
一方、蓋３は、缶本体２の開口部23の外径にほぼ対応す
る内径を有する円筒状の胴部31と、その一つの開口端部
を閉塞する頂部32と、胴部31を頂部32を越えて延長する
ことにより形成されている延長部33とから構成されてお
り、この延長部33の端部には、機械で取り扱うための環
状のエッジ34が、取り付けてある。なお、蓋３の胴部31
の内周面には、缶本体２の開口部23の外周面に旋削され
た雄ねじ24に対応する雌ねじ35が、旋削されている。On the other hand, the lid 3 has a cylindrical barrel portion 3 1 which has an inside diameter which corresponds approximately to the outer diameter of the opening 2 3 of the can body 2, a top 3 2 for closing the one opening end, the barrel 3 It is composed of an extension 3 3 formed by extending 1 over the top 3 2 and at the end of this extension 3 3 there is an annular edge 3 4 for machine handling, It is attached. The body 3 1 of the lid 3
The inner peripheral surface of the female screw 35 corresponding to the external thread 2 4 which is turned to the outer peripheral surface of the opening 2 3 of the can body 2 are turned.
更に、缶本体２の胴部21の内壁面からは、数個の冷却フ
ィン41,42が、等しい角度間隔で、胴部21の中心に向か
って放射状に一体に突出して形成されている。なお、本
例においては、冷却用フィン41,42は、その放射方向の
長さが異なるものとし、しかも、交互に配置されている
ものとしてある。Further, from the inner wall surface of the body portion 2 1 of the can body 2, several cooling fins 4 1, 4 2, equal angular intervals, are formed to protrude integrally radially toward the center of the trunk portion 2 1 ing. In the present embodiment, the cooling fins 4 1, 4 2, it is assumed that the length of the radiation directions are different, moreover, there as being arranged alternately.
そして、このような構成を有している粉末缶１は、その
缶本体２の胴部21の内部に微粉末体を収納した後、その
開口部23を、その端面にＯリング５を介装の下に蓋３に
より閉塞することにより、微粉末を粉末缶１に内蔵して
密閉することが出来るようになっている。すなわち、蓋
３を、缶本体２の開口部23の外周面に旋削された雄ねじ
24に、蓋３の胴部31の内周面に旋削された雌ねじ35をね
じ込むことにより、蓋３が缶本体２の開口部23を閉塞す
るが、この場合に、蓋３の頂部32の下面が、Ｏリング５
を缶本体２の開口部23の端面に対して押圧するので、缶
本体２の内部を蓋３により、外部に対して密閉すること
が出来るものである。Then, the powder can 1 having such a structure, after storing powder material in the interior of the body portion 2 1 of the can body 2, the opening 2 3, the O-ring 5 to the end face By closing the cover 3 with the lid 3, the fine powder can be contained in the powder can 1 and hermetically sealed. That is, the male screw the lid 3, which is turned to the outer peripheral surface of the opening 2 3 of the can body 2
2 4, by screwing the female screw 35 which is turned to the inner peripheral surface of the trunk portion 3 1 of the lid 3, the lid 3 closes the opening 2 3 of the can body 2, in this case, the lid 3 the lower surface of the top portion 3 2, O-ring 5
Since presses against the end face of the opening 2 3 of the can body 2, the lid 3 to the can body 2, and which can be sealed against the outside.
ところで、このような典型的な構成を有している粉末
缶、特に、プルトニウム微粉末体を収容するための粉末
缶には 1.缶本体２の胴部21の壁に、ピンホールなどの欠陥があ
ってはならないこと 2.缶本体２から内容部を排出する時に、微粉末体が、缶
本体２の内壁面に付着して残ることが無いように、底部
20、胴部21,絞り部22及び開口部24の内壁は、滑らかな
内面肌であること などが、要求されるものである。By the way, a powder can having such a typical structure, in particular, a powder can for accommodating a fine powder of plutonium is provided as follows. 1 . There must be no defects. 2. When discharging the contents from the can body 2, the bottom of the can body 2 should not adhere and remain on the inner wall surface of the can body 2.
2 0, barrel 2 1, the inner wall of the throttle portion 2 2 and the opening 2 4 and be a smooth inner surface skin, are those required.
また、このような粉末缶の缶本体を成形するために、現
在、主として、次ぎの２方法が知られている。In addition, in order to mold the can body of such a powder can, the following two methods are mainly known at present.
すなわち、 1.溶接成形法 2.溶湯鍛造法 であるが、これらについて、簡単に説明をすると、それ
ぞれ、次ぎのようになる。In other words, 1. Welding forming method 2. Molten metal forging method, which are briefly described below.
1.溶接成形法 添付図面の第５図に示すように、適当な材料から、 底部20 内面フィン41,42を一体に有する胴部21 絞り部22及び雄ねじ24を旋削された開口部23を形成さ
れた開口部材25 の部材を、それぞれ、別個に製作して置き、これらの部
材を溶接することにより（溶接部が、Ｗにより現されて
いる）相互に連結して組み立てた後、旋削加工する方法
である 2.溶湯鍛造成型法 溶湯鍛造により一体成形品を製造の後、旋削加工をする
方法である。1. Weld forming method As shown in Fig. 5 of the attached drawings, the body 2 1 having the bottom 2 0 inner fins 4 1 and 4 2 integrally formed and the drawing portion 2 2 and the male screw 2 4 are turned from an appropriate material. the members of the opening member 2 5 the opening 2 3 is formed with, respectively, placed separately manufactured, by welding these members (welds are revealed by W) linked to each other It is a method of turning after it is assembled and assembled 2. Molten metal forging method This is a method of turning after manufacturing an integrally molded product by molten metal forging.
しかしながら、これらの公知の方法により成形された粉
末缶には、それぞれ、次ぎのような問題点がある。However, the powder cans molded by these known methods have the following problems, respectively.
1.溶接構造品 溶接部Ｗに生ずるピンホールなどの微少欠陥部から、内
容物が漏れることが懸念されること 2.溶湯鍛造品 鋳肌の粗度が粗く、内容物の排出時に微少粉末体が、缶
本体の内壁面や、フィンの周面に付着して残留し易いこ
と などである。1. Welded structure product There is a concern that the contents may leak from minute defects such as pinholes generated in the welded portion 2. Molten forged product The roughness of the casting surface is rough, and the minute powdery substance when discharging the contents However, they tend to adhere to the inner wall surface of the can body and the peripheral surface of the fins and remain there.
発明が解決しようとする課題 そこで、本発明は、従来公知の成形技術による製品にお
ける上記のような欠陥を回避することが出来る粉末缶の
新規な成形方法を得ることを、その課題とするものであ
る。SUMMARY OF THE INVENTION Therefore, the present invention has as its object to obtain a new molding method of a powder can which can avoid the above-mentioned defects in a product by a conventionally known molding technique. is there.
課題を解決するための手段 本発明においては、この課題を解決するために、一般的
に円筒状の形状を有する粉末缶の底部、胴部、絞り部及
びねじ部から成り立っている缶本体を成形するにあたり （１）ほぼ所望の胴部の外径寸法及び必要な高さを有す
る円柱状態と、その１端面に、この外径よりも大きな寸
法の外径及び外径よりもやや小さな寸法の内径を有する
と共に必要な高さを有する円筒状体とを一体に形成され
た形状を有する予備成形素材を成形することと （２）この予備成形素材の、主として、円柱状体部分を
所望の胴部の外径寸法に等しい内径を有するダイに嵌挿
し、ダイ内に嵌挿された予備成形素材の円柱状体部分
に、粉末缶の胴部の所望の内横断面に対応する成型面を
有するポンチにより冷間押し出し加工を施すことによ
り、予備成形素材の、主として、円柱状体部分を、有底
であり且つ内壁面にフィンを設けられた所望の内横断面
及び外面形状を有する胴部を有する第一中間半製品とす
ることと （３）この第一中間半製品の、主として、円筒体部分を
スエージングにより絞り加工をすることにより、絞り部
及び開口部を成形した第二中間半製品とすることと （４）第二中間半製品の絞り加工をした開口部の外周面
に、雄ねじを旋削することと の４工程により成形することを、特徴とするものであ
る。Means for Solving the Problem In the present invention, in order to solve this problem, a can main body formed of a bottom portion, a body portion, a narrowing portion and a screw portion of a powder can having a generally cylindrical shape is formed. (1) A cylindrical state that has almost the desired outer diameter of the body and the required height, and an outer diameter larger than this outer diameter and an inner diameter slightly smaller than this outer diameter on one end face thereof. And (2) forming a preforming material having a shape integrally formed with a cylindrical body having a required height, and (2) mainly the columnar body portion of the preforming material having a desired body portion. A punch having a molding surface corresponding to a desired inner cross section of the body of the powder can, which is inserted into a die having an inner diameter equal to the outer diameter of the preform material and is inserted into the die. By cold extruding The predominantly cylindrical portion of the preform material is a first intermediate semi-finished product having a body portion having a bottom and a desired inner cross section and outer surface shape with fins provided on the inner wall surface. 3) The first intermediate semi-finished product is made into a second intermediate semi-finished product in which a narrowed portion and an opening are formed by mainly subjecting a cylindrical body portion to drawing processing by swaging, and (4) second intermediate semi-finished product. It is characterized in that the outer peripheral surface of the drawn portion of the product is formed by four steps including turning an external thread.
実 施 例 以下、本発明による成形方法を、その実施の要領を示す
添付図面の第１図に基づいて、詳細に説明をする。EXAMPLES Hereinafter, the molding method according to the present invention will be described in detail with reference to FIG. 1 of the accompanying drawings showing the procedure for carrying out the method.
第１図には、本発明方法による成形工程が、工程１〜工
程４として示されているが、各工程を説明すると、次ぎ
のとおりである。In FIG. 1, the molding steps according to the method of the present invention are shown as steps 1 to 4, and each step will be described as follows.
（１）工程 １ ほぼ所望の粉末缶の胴部の外径寸法D1及び必要な高さH1
を有する円柱状体101と、その１端面に、この外径D1よ
りも大きな寸法の外径D2及び外径D1よりもやや小さな寸
法の内径d1を有すると共に必要な高さH2を有する円筒状
体102とを、外部円すい面103により相互に連結されて一
体に形成された形状を有している。予備成形素材10を成
形すること （２）工程 ２ この予備成形素材10の、主として、円柱状体101の部分
を、所望の胴部の外径にほぼ等しい内径を有するダイ
（図示されていない）に嵌挿し、ダイ内に嵌挿された予
備成形素材10の、主として、円柱状体101の部分に、粉
末缶の缶本体２（第３図参照）の胴部21の内横断面（第
４図参照）に対応する成形面を有するポンチ（図示され
ていない）により冷間押し出し加工を施すことにより、
円柱状体101の部分を、所望の底部20を有すると共に内
壁面にフィン41,42を設けられた内面形状及び外面形状
を有する胴部21を完成した第一中間半製品11とすること （３）工程 ３ この第一中間半製品11の円筒状体102の部分付近をスエ
ージングにより絞り加工をすることにより、切頭円すい
状の絞り部22′及び円筒状の開口部23′が成形された第
二中間半製品12を成形すること （４）工程 ４ 第二中間半製品12の絞り加工をされた絞り部22′及び開
口部23′の外周面を旋削加工することにより、絞り部22
を仕上げ加工すると共に開口部22′の外周面に雄ねじ24
を形成し、完成粉末品１とすること から成り立っている。(1) Step 1 Almost desired outer diameter dimension D 1 of the body of the powder can and required height H 1
A cylindrical body 10 1 having, on its first end face, the height H required which has an inner diameter d 1 slightly smaller dimensions than the outer diameter D 2 and the outer diameter D 1 of the larger dimension than the outer diameter D 1 It has a shape in which a cylindrical body 10 2 having 2 is integrally formed by being connected to each other by an outer conical surface 10 3 . That (2) Step 2 The preformed material 10 for forming the preformed material 10, mainly the portion of the cylindrical body 10 1, not die (illustrated with a inside diameter substantially equal to the outer diameter of the desired barrel ), And the inner cross-section of the body part 2 1 of the can body 2 (see FIG. 3) of the powder can, mainly in the columnar body 10 1 part of the preforming material 10 fitted in the die. By performing cold extrusion with a punch (not shown) having a molding surface corresponding to (see FIG. 4),
The portion of the cylindrical body 10 1, the first intermediate blank 11 which has completed trunk portion 2 1 having an inner surface shape and an outer surface shape provided with fins 4 1, 4 2 on the inner wall surface and having a desired bottom 2 0 (3) Step 3 By drawing the vicinity of the cylindrical body 10 2 of the first intermediate semi-finished product 11 by swaging, a truncated cone-shaped narrowed portion 2 2 ′ and a cylindrical opening are formed. Forming the second intermediate semi-finished product 12 in which the part 2 3 ′ is formed (4) Process 4 The second intermediate semi-finished product 12 is drawn and the outer peripheral surface of the drawn part 2 2 ′ and the opening 2 3 ′ is removed. By turning, the drawing part 2 2
External thread 2 on the outer peripheral surface of the opening 2 2 'together with finishing the 4
And the finished powder product 1 is formed.
なお、このような本発明方法による成形工程１〜４を経
て成形された製品が、第２図に縦断面により示されてい
る。A product molded through the molding steps 1 to 4 according to the method of the present invention is shown by a vertical section in FIG.
発明の効果 本発明による成形方法は、上記のような工程により実施
されるものであるので、次ぎのような効果を発揮するも
のであることは、明らかなところである。すなわち 1.本発明方法によると、粉末缶が一体に成形され、溶接
継ぎ目が無いので、従来の溶接構造品におけるように、
溶接部に生ずるピンホールなどの微少な欠陥から内容物
が漏れるという懸念が無いこと 2.本発明方法によると、主成形が、冷間押し出し加工に
より行われるので、従来の溶湯鍛造品に見いだされるよ
うな、本体の内壁面の肌荒れが無く、滑らかな内面肌が
得られ、従って、内容物の排出時に、微粉末体が、主体
の内壁面に付着することにより生ずる残留粉末が、少な
くなること などである。EFFECTS OF THE INVENTION Since the molding method according to the present invention is carried out by the steps as described above, it is obvious that the following effects are exhibited. That is, according to the method of the present invention, since the powder can is integrally molded and has no welding seam, as in the conventional welded structure,
There is no concern that the contents will leak from minute defects such as pinholes that occur in the welded portion. 2. According to the method of the present invention, the main forming is performed by cold extrusion, so it is found in the conventional molten metal forgings. As described above, the inner wall surface of the main body is not roughened, and a smooth inner surface is obtained. Therefore, when the contents are discharged, the residual powder generated by the fine powder particles adhering to the inner wall surface of the main body is reduced. And so on.
第１図は、本発明による成形方法の成形工程を示す図、
第２図は、本発明による成形方法により成形された粉末
缶を示す縦断面図、第３図は、従来公知の典型的な粉末
缶の１例を示す、第４図のIII−III線による縦断面図、
第４図は、第３図のIV−IV線による横断面図、第５図
は、従来公知の溶接成形方法により製造された溶接構造
の粉末缶の１例を示す縦断面図である。 １……粉末缶、２……缶本体、20……底部、21……胴
部、22……絞り部、23……開口部、24……雄ねじ、３…
…蓋、31……胴部、32……頂部、33……延長部、34……
環状エッジ、35……雌ねじ、41,42……冷却フィン、10
……予備成形素材、101……円柱状体、102……円筒状
体、11……第一中間半製品、12……第二中間半製品。FIG. 1 is a diagram showing a molding step of a molding method according to the present invention,
FIG. 2 is a longitudinal sectional view showing a powder can formed by the forming method according to the present invention, and FIG. 3 is an example of a conventionally known typical powder can, taken along line III-III in FIG. Longitudinal section,
FIG. 4 is a horizontal cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is a vertical cross-sectional view showing an example of a powder can having a welded structure manufactured by a conventionally known welding forming method. 1 ...... powder cans, 2 ...... can body, 2 0 ...... bottom 2 1 ...... torso 2 2 ...... throttle section, 2 3 ...... openings 2 4 ...... external thread, 3 ...
… Lid, 3 1 …… Body, 3 2 …… Top, 3 3 …… Extended part, 3 4 ……
Annular edge, 3 5 ...... Female thread, 4 1 , 4 2 ...... Cooling fin, 10
…… Preformed material, 10 1 …… Cylindrical body, 10 2 …… Cylindrical body, 11 …… First intermediate semi-finished product, 12 …… Second intermediate semi-finished product.
Claims (2)
底部、胴部、絞り部及びねじ部から成り立っている缶本
体を成形するに当たり （１）ほぼ所望の胴部の外径寸法及び必要な高さを有す
る円柱状体と、その１端面に、この外径よりも大きな寸
法の外径及び外径よりもやや小さな寸法の内径を有する
と共に必要な高さを有する円筒状体とを一体に形成され
た形状を有する予備成形素材を成形すること （２）この予備成形素材の、主として、円柱状体部分を
所望の胴部の外径寸法に等しい内径を有するダイに嵌挿
し、ダイ内に嵌挿された予備成形素材の円柱状体部分
に、粉末缶の胴部の所望の内横断面に対応する成形面を
有するポンチにより冷間押し出し加工を施すことによ
り、予備成形素材の、主として、円柱状体部分を、有底
であり且つ内壁面にフィンを設けられた所望の内横断面
及び外面形状を有する胴部を有する第一中間半製品とす
ること （３）この第一中間半製品の、主として、円筒体部分を
スエージングにより絞り加工をすることにより、絞り部
及び開口部を成形した第二中間半製品とすること （４）第二中間半製品の絞り加工をした開口部の外周面
に、雄ねじを旋削すること の４工程により成形することを特徴とする成形方法。1. Generally, in molding a can body which is composed of a bottom portion, a body portion, a squeezing portion and a screw portion of a powder can having a cylindrical shape, (1) a substantially desired outer diameter of the body portion. And a cylindrical body having a required height, and a cylindrical body having, at one end surface thereof, an outer diameter larger than the outer diameter and an inner diameter slightly smaller than the outer diameter, and having a necessary height. To form a preformed material having an integrally formed shape. (2) Mainly, a columnar body portion of the preformed material is fitted and inserted into a die having an inner diameter equal to the outer diameter of a desired body portion, By subjecting the cylindrical body portion of the preforming material inserted into the die to cold extrusion with a punch having a forming surface corresponding to the desired inner cross section of the body of the powder can, , Mainly the cylindrical body portion, A first intermediate semi-finished product having a body having a desired inner cross-section and an outer surface shape provided with fins on the inner wall surface. (3) By swaging the cylindrical body part of the first intermediate semi-finished product. The second intermediate semi-finished product is obtained by forming the drawing part and the opening by drawing. (4) Turning the external thread on the outer peripheral surface of the drawn part of the second intermediate semi-finished product. A molding method characterized in that the molding is carried out by steps.
削加工することにより、所望寸法の絞り部を形成するよ
うにする請求項１記載の成形方法。2. The molding method according to claim 1, wherein in step (4), the outer surface of the drawn portion is also turned to form the drawn portion having a desired size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25788089A JPH0790304B2 (en) | 1989-10-04 | 1989-10-04 | Powder can molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25788089A JPH0790304B2 (en) | 1989-10-04 | 1989-10-04 | Powder can molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03124334A JPH03124334A (en) | 1991-05-27 |
| JPH0790304B2 true JPH0790304B2 (en) | 1995-10-04 |
Family
ID=17312468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25788089A Expired - Lifetime JPH0790304B2 (en) | 1989-10-04 | 1989-10-04 | Powder can molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790304B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101629745B1 (en) * | 2016-02-22 | 2016-06-13 | (주)신영프리텍 | Manufacturing Method for Receiver Drier Tank |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110011896A1 (en) * | 2009-07-20 | 2011-01-20 | Diamond George B | Steel one-piece necked-in aerosol can |
-
1989
- 1989-10-04 JP JP25788089A patent/JPH0790304B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101629745B1 (en) * | 2016-02-22 | 2016-06-13 | (주)신영프리텍 | Manufacturing Method for Receiver Drier Tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03124334A (en) | 1991-05-27 |
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