• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A procedure the life of wood-cutting tools and relates to the cutting of green wood and comparable organic materials. The dulling of tools in such cutting is mainly corrosion of the cutting edge of the tool, which could be almost completely prevented under laboratory conditions by applying a high-voltage direct current. The dulling is also limited in practice in the procedure, which is based on the realization of the specific resistance of wood which is sufficient to render unnecessary the electric insulation of the tool or the wood being cut from the frame of the cutting machine. Such an operation is difficult to carry out, but was formerly believed to be indispensable. The invention, the negative terminal of a DC source is connected with the grounded frame of the machine. The current is conducted from the positive terminal of the DC source, using a suitable anode brush, into green wood acting like an electrolyte at a point close to the tool that is to be protected. The wood-cutting tool, and on its side also the means for feeding and supporting the wood, will then act as cathodes in the system and they will be protected against wear caused by corrosion.
    公开号:SU1473701A3
    申请号:SU843796149
    申请日:1984-09-25
    公开日:1989-04-15
    发明作者:Кивимаа Эро
    申请人:ЭРО Кивимаа (FI)；
    IPC主号:
    专利说明:

    Fm.2
    权利要求:
    Claims (1)
    [1]
    Claim
    A method of extending the life of woodworking tools when cutting freshly cut wood, including passing a direct current through the wood processed on the machine at the cutting point with a cutting edge, the positive potential being brought through the contact to the wood before cutting, characterized in that, in order to eliminate the need for electrical isolation from frame of the cutting tool machine, a negative potential is brought to the frame of the machine and a direct current of 300 - 500 V is passed through the wood.
    • Editor A. Makovskaya
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1473701A3|1989-04-15|Method of enhancing the durability of wood cutting tools when cutting freshly felled wood
    AT75637T|1992-05-15|METHOD FOR ELECTRIC RECOVERY OF GROUND MATERIAL, ELECTRIC ELECTRICITY SYSTEM FOR APPLICATION OF THE METHOD AND ELECTRODE HOUSING FOR USE IN THE ELECTRICAL ELECTRICAL SYSTEM.
    MX162606A|1991-05-31|METHOD FOR PREPARING AN ELECTRODE FOR ELECTROCHEMICAL PROCESSES
    JPH0343144A|1991-02-25|Method and device for grinding lens
    DK139186D0|1986-03-25|CUTTING KNIFE FOR AN ELECTRIC SHAVER
    JPS5721230A|1982-02-03|Positioning method in wire cut electric discharge processing
    DE3483324D1|1990-10-31|DEVICE FOR COOLING A METAL WIRE ELECTRODE IN AN ELECTRIC CUTTING WIRE EDM MACHINING MACHINE.
    JPS5420485A|1979-02-15|Wire cutting device
    ES489994A1|1980-10-01|Process and apparatus for electro-depositing metals, in particular copper.
    SU1182320A1|1985-09-30|Method of separating copper from solution
    JPS5930620A|1984-02-18|Wire-cut electric discharge machining apparatus
    US4588007A|1986-05-13|Method for retarding the dulling of wood-machining blades
    JPS59198735A|1984-11-10|Seam welding process
    ES8301735A1|1982-12-16|Treatment of materials for protection against degradation and a wooden body thus treated.
    JPS52149295A|1977-12-12|Protecting method for electrolytic bath
    JPS5676334A|1981-06-23|Wire cut electric spark machining device
    EP0248756A3|1989-02-08|Apparatus for stripping the end of an electrical conductor
    JPS58109223A|1983-06-29|Wire cut electric discharge processing machine
    DE3784904D1|1993-04-22|METHOD FOR ELECTROCHEMICALLY MACHINING WORKPIECES, AND DEVICE FOR IMPLEMENTING THE METHOD.
    JPS5920735A|1984-02-02|Insulation trolley with power feed part
    SU797863A1|1981-01-23|Method of electric-resistance working of articles
    JPS6311236A|1988-01-18|Method for electrical discharge machining
    JPS63306825A|1988-12-14|Machining gap control device for electro-chemical machine
    JPS59169715A|1984-09-25|Wire cut electric discharge machining method
    JPS59129607A|1984-07-26|Electric drill attached with plug socket
    同族专利:
    公开号 | 公开日
    FI68186C|1985-08-12|
    SE8404802L|1985-03-27|
    CA1248043A|1989-01-03|
    US4621669A|1986-11-11|
    FI68186B|1985-04-30|
    SE8404802D0|1984-09-25|
    JPS60143903A|1985-07-30|
    FI833446A0|1983-09-26|
    DE3434981A1|1985-04-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2681134C1|2018-02-13|2019-03-04|Публичное акционерное общество "Татнефть" имени В.Д. Шашина|Method of extraction of oil from heterogeneous on the penetration of oil structures |US855389A|1906-02-19|1907-05-28|John R Dawkins|Electric attachment for movable objects.|
    FI27352A|1952-04-09|1954-11-10|Valtion Teknillinen|A method to limit tool boredom|
    CA1163172A|1979-06-20|1984-03-06|Jonas W. Ask|Saw unit|US5215135A|1992-06-08|1993-06-01|Gerald M. Fisher|Pellitizer methods and apparatus|
    GB2352993B|1999-08-10|2003-12-24|Clive Alan Francis|Blade sharpener|
    DE10160166A1|2001-12-07|2003-06-18|Cfs Kempten Gmbh|slicing|
    DE102010004205B4|2010-01-08|2012-11-08|Fecken-Kirfel Gmbh & Co. Kg|Apparatus and method for splitting foam bodies|
    CN103302714B|2013-05-20|2014-11-19|浙江农林大学|Bamboo shaping and rotary-cutting all-in-one machine|
    US9381661B2|2013-10-07|2016-07-05|Curt G. Joa, Inc.|Corrosion protected anvil and knife cutting assembly|
    US10273585B2|2015-06-10|2019-04-30|Westmill Industries Ltd.|Cathodic protection for wood veneer dryers and method for reducing corrosion of wood veneer dryers|
    CN109333728B|2018-09-26|2020-11-27|王顺方|A string surely equipment that is used for birch panel juice disconnect-type recovery to handle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI833446A|FI68186C|1983-09-26|1983-09-26|FOERFARANDE FOER FOERLAENGNING AV HAOLLBARHETEN FOER TRAEBEARBETNINGSBETT|
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