JPS5621611A - Filter for high-pressure working oil - Google Patents

Filter for high-pressure working oil

Info

Publication number
JPS5621611A
JPS5621611A JP9639879A JP9639879A JPS5621611A JP S5621611 A JPS5621611 A JP S5621611A JP 9639879 A JP9639879 A JP 9639879A JP 9639879 A JP9639879 A JP 9639879A JP S5621611 A JPS5621611 A JP S5621611A
Authority
JP
Japan
Prior art keywords
filter paper
filter
working oil
perforated pipe
pressure working
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.)
Granted
Application number
JP9639879A
Other languages
Japanese (ja)
Other versions
JPS5844004B2 (en
Inventor
Haruo Otsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HIYOSHI KOGYO KK
Original Assignee
HIYOSHI KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HIYOSHI KOGYO KK filed Critical HIYOSHI KOGYO KK
Priority to JP54096398A priority Critical patent/JPS5844004B2/en
Priority to DE19803027785 priority patent/DE3027785C2/en
Publication of JPS5621611A publication Critical patent/JPS5621611A/en
Publication of JPS5844004B2 publication Critical patent/JPS5844004B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To strengthen the bonding of a filter paper and a pipe and to the prevent the damage to the bonded portion by the high-pressure working oil by bonding the corrugated filter paper of the filter for the high-pressure working oil with an internal perforated pipe with the aid of an organic solvent and a soluble adhesive.
CONSTITUTION: The inside of the cylindrical filter paper 1 whose edge portion is of a currugated form is provided with the perforated pipe 3 with a great number of the through holes 2. Then, the volatile organic solvent 4, e.g., trichloroethylene, etc., is impregnated into both ends of the filter paper 1 and both ends of the perforated pipe 3 are covered with the concave portion 6 of a disk-like end plate 5. Then, the soft pasty adhesive 7 of an epoxy resin is impregnated into the concave portion 6 until it reaches the end edges, and part of the adhesive 7 is dissolved in the organic solvent 4 impregnated into the end portion of the filter paper 1 and absorbed in the fibrous layer of the paper 1. The filter paper 1 so treated is forcibly dried by heating to a necessary temperature in a dryer to cause the strong bonding between the corrugated filter paper 1, the end plate 5, and the perforated pipe 3. The filter having a sufficiently high resistance to the high-pressure working oil is can be used for a high-pressure oil machinery and therefore can prevent the lowering of performance and also the shortening of life of the oil-pressure machinery.
COPYRIGHT: (C)1981,JPO&Japio
JP54096398A 1979-07-29 1979-07-29 Manufacturing method of filter for high pressure hydraulic oil filtration Expired JPS5844004B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54096398A JPS5844004B2 (en) 1979-07-29 1979-07-29 Manufacturing method of filter for high pressure hydraulic oil filtration
DE19803027785 DE3027785C2 (en) 1979-07-29 1980-07-23 Process for the production of sintered iron-copper alloys of high density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54096398A JPS5844004B2 (en) 1979-07-29 1979-07-29 Manufacturing method of filter for high pressure hydraulic oil filtration

Publications (2)

Publication Number Publication Date
JPS5621611A true JPS5621611A (en) 1981-02-28
JPS5844004B2 JPS5844004B2 (en) 1983-09-30

Family

ID=14163848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54096398A Expired JPS5844004B2 (en) 1979-07-29 1979-07-29 Manufacturing method of filter for high pressure hydraulic oil filtration

Country Status (2)

Country Link
JP (1) JPS5844004B2 (en)
DE (1) DE3027785C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011855A1 (en) * 1989-04-07 1990-10-18 Aktiebolaget Electrolux Manufacture of dimensionally precise pieces by sintering

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184461A (en) * 1975-01-21 1976-07-23 Nippon Denso Co Rokaerementooyobi sonoseizohoho

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB975322A (en) * 1960-05-04 1964-11-18 Birmingham Small Arms Co Ltd Improvements in or relating to metal powders and articles made therefrom
GB1074911A (en) * 1965-06-08 1967-07-05 Bound Brook Ltd Improvements in or relating to metal powders and articles formed therefrom

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184461A (en) * 1975-01-21 1976-07-23 Nippon Denso Co Rokaerementooyobi sonoseizohoho

Also Published As

Publication number Publication date
DE3027785A1 (en) 1981-02-12
JPS5844004B2 (en) 1983-09-30
DE3027785C2 (en) 1988-03-03

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