公开(公告)号：US3897623A

公开(公告)日：1975-08-05

申请号：US50600274

申请日：1974-09-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TASAKI YOSHIO ,  NAKAYAMA NOBORU ,  KAZIHARA HIROSHI ,  KOSAKA MINEO

IPC: B23K20/12 ,  B23K27/00

CPC classification number: B23K20/12

Abstract: This invention provides a method for underwater frictional welding of metallic articles, which method comprises preparatorily wrapping a heat insulating material such as tape around the periphery at the terminal face of each of the metallic articles subjected to welding, abutting under pressure the terminal faces of the metallic articles against each other and welding the confronting ends of the metallic articles by utilizing the frictional heat produced in the terminal faces by the relative rotary motion and the pressure exerted in the axial direction.

Abstract translation: 本发明提供了一种金属制品的水下摩擦焊接方法，该方法包括在每一个经受焊接的金属制品的端面周围将围绕周边的隔热材料预先包裹在每个金属制品的端面上， 金属制品彼此相对并且通过利用通过相对旋转运动和沿轴向施加的压力利用在端面中产生的摩擦热来焊接金属制品的相对端。

公开(公告)号：US3893333A

公开(公告)日：1975-07-08

申请号：US41579973

申请日：1973-11-14

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUNAHARA HIROSHI ,  ISHIHARA YUTAKA ,  NAKAYAMA NOBORU

IPC: G01N15/06 ,  G01N5/02 ,  G01N5/04 ,  G01N33/18 ,  G01N11/02

CPC classification number: G01N33/18 ,  G01N5/04

Abstract: A device for automatic determination of suspended solids content in water comprises an automatic sample liquid collection unit, an automatic specimen preparation unit, an automatic filter paper feeding unit, an automatic filter paper transfer unit, an automatic suspended solids filtration unit, an automatic drying unit, an automatic weighing and display unit and an automatic process control unit. A sample liquid automatically collected is prepared automatically to produce a test specimen. The specimen is filtered through a sheet of filter paper supplied by the automatic filter paper feeding unit. The filter paper on which the suspended solids of the specimen are deposited in consequence of the filtration is dried by the automatic drying unit and thereafter weighed. The weight thus taken is automatically converted into a corresponding electrical quantity and forwarded to an arithmetic circuit, in which the suspended solids content of the given liquid is calculated and recorded.

Abstract translation: 用于自动测定水中悬浮固体含量的装置包括自动样品液体收集单元，自动样品制备单元，自动滤纸进给单元，自动滤纸传送单元，自动悬浮固体过滤单元，自动干燥单元 ，自动称重显示单元和自动过程控制单元。 自动收集的样品液体被自动制备以产生试样。 通过由自动进纸单元供应的一张滤纸过滤样品。 将过滤后的样品的悬浮固体沉积在其上的滤纸通过自动干燥单元干燥，然后称重。 这样取得的重量被自动转换成相应的电量，并被转送到运算电路，其中计算和记录给定液体的悬浮固体含量。

公开(公告)号：DE2445088A1

公开(公告)日：1975-04-03

申请号：DE2445088

申请日：1974-09-20

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TASAKI YOSHIO ,  NAKAYAMA NOBORU ,  KAZIHARA HIROSHI ,  KOSAKA MINEO

IPC: B23K20/12 ,  B23K19/00

Abstract: This invention provides a method for underwater frictional welding of metallic articles, which method comprises preparatorily wrapping a heat insulating material such as tape around the periphery at the terminal face of each of the metallic articles subjected to welding, abutting under pressure the terminal faces of the metallic articles against each other and welding the confronting ends of the metallic articles by utilizing the frictional heat produced in the terminal faces by the relative rotary motion and the pressure exerted in the axial direction.

公开(公告)号：JPH0699045A

公开(公告)日：1994-04-12

申请号：JP12381891

申请日：1991-05-28

Applicant: AGENCY IND SCIENCE TECHN ,  NIPPON KOKAN KK

Inventor： NAKANE TAKASHI ,  YAGISHITA HIROSHI ,  NAKAYAMA NOBORU ,  FURUNO NAOKI

IPC: B01D71/68

Abstract: PURPOSE:To efficiently densign the conditions for forming a gas separation asymmetrical membrane showing the separation performance as the characteristics of a raw material, and to obtain the separation coefft. for methane and carbon dioxide which is expected for characteristics of the raw material of the membrane when the gas separation asymmetrical membrane is formed iN these conditions determined by this method. CONSTITUTION:A film forming liquid is applied on a supporting body into uniform thickness. This film forming liquid essentially consists of polyethersulfone (PES) or polysulfone (PS) as the film material and an intrinsic solvent which dissolves the film material, and an auxiliary solvent may be added as necessary. The surface layer of the applied film forming liquid is partly vaporized and dipped in a gelling agent to cause phase transition to form a gel film and to produce the gas separation symmetrical membrane. In this method, the optimum conditions for forming the membrane concerning to the component and compsn. of the intrinsic solvent auxiliary solvent added as necessary, and the gelling agent are selected from the following characteristics. (1): gelation point of the film forming liquid, (2): mixing heating value of the solvents and the gelling agent, and (3): dissolving rate of the solvent to the gelation agent.

公开(公告)号：JPH03154625A

公开(公告)日：1991-07-02

申请号：JP29156989

申请日：1989-11-09

Applicant: AGENCY IND SCIENCE TECHN ,  NIPPON KOKAN KK

Inventor： NAKANE TAKASHI ,  YAGISHITA HIROSHI ,  FURUNO NAOKI ,  NAKAYAMA NOBORU

IPC: B01D71/68 ,  B01D71/82 ,  D01F6/00 ,  D01F6/76

Abstract: PURPOSE:To contrive the improvement of the separating ability of an unsymmetrical membrane with an easy operation by a method wherein commercially available polysulfone or polyether sulfone is used as the material in the manufacture of the membrane and the surface of a gas separating unsymmetrical membrane manufactured by phase change process is sulfonated. CONSTITUTION:A sheet- or hollow fiber-like unsymmetrical membrane for use in gas separation is obtained from the use of polysulfone or polyether sulfone as the material by phase change process. The surface of this membrane is then sulfonated by treating with sulfonating agent, thereby forming the unsymmetrical membrane having a high gas separating ability. Preferably, the membrane surface may be treated with metallic salt using alkaline metal compound after sulfonation. This method permits the improvement of the gas separating ability by merely subjecting the membrane to an atmosphere of fuming sulfuric acid. Furthermore, a substantial improvement of the separation performance is made possible by merely immersing the membrane in a solution of the alkaline metal compound. This method provides an easy operation, making easy the manufacture of the membrane having a high gas separating ability. This membrane is also useful for ultrafiltration.