EP0309660A1 - Lame de scie alternative à cadre - Google Patents

Lame de scie alternative à cadre Download PDF

Info

Publication number: EP0309660A1
Authority: EP; European Patent Office
Prior art keywords: teeth; blade; frame saw; saw blade; carrier
Prior art date: 1987-10-02
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

EP88110633A

Other languages

German (de)

English (en)

Other versions

EP0309660B1 (fr

Inventor

Willi Kunz

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.)

Saint Gobain Diamantwerkzeuge GmbH and Co KG

Original Assignee

Ernst Winter and Sohn Diamantwekzeuge GmbH and Co

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.)

1987-10-02

Filing date

1988-07-04

Publication date

1989-04-05

1988-07-04 Application filed by Ernst Winter and Sohn Diamantwekzeuge GmbH and Co filed Critical Ernst Winter and Sohn Diamantwekzeuge GmbH and Co

1989-04-05 Publication of EP0309660A1 publication Critical patent/EP0309660A1/fr

1991-05-22 Application granted granted Critical

1991-05-22 Publication of EP0309660B1 publication Critical patent/EP0309660B1/fr

2008-07-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000005260 corrosion Methods 0.000 claims abstract description 12
230000007797 corrosion Effects 0.000 claims abstract description 12
229910052751 metal Inorganic materials 0.000 claims abstract description 3
239000002184 metal Substances 0.000 claims abstract description 3
229910000679 solder Inorganic materials 0.000 claims description 6
239000000463 material Substances 0.000 claims description 2
229910000831 Steel Inorganic materials 0.000 abstract description 12
239000010959 steel Substances 0.000 abstract description 12
238000005219 brazing Methods 0.000 abstract 1
238000010285 flame spraying Methods 0.000 description 6
238000010438 heat treatment Methods 0.000 description 4
239000010410 layer Substances 0.000 description 3
239000011241 protective layer Substances 0.000 description 3
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
239000000969 carrier Substances 0.000 description 2
238000000034 method Methods 0.000 description 2
238000005476 soldering Methods 0.000 description 2
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
229910000906 Bronze Inorganic materials 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
239000000853 adhesive Substances 0.000 description 1
230000001070 adhesive effect Effects 0.000 description 1
230000002411 adverse Effects 0.000 description 1
239000000956 alloy Substances 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
229910052796 boron Inorganic materials 0.000 description 1
239000010974 bronze Substances 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
238000001816 cooling Methods 0.000 description 1
KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
229910003460 diamond Inorganic materials 0.000 description 1
239000010432 diamond Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000004579 marble Substances 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
239000000843 powder Substances 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000010703 silicon Substances 0.000 description 1
230000008646 thermal stress Effects 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
239000002347 wear-protection layer Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/127—Straight, i.e. flat, saw blades; strap saw blades

Definitions

the invention relates to a gang saw blade, which carries spaced teeth on its straight lower edge.
Gate saw blades of this type are used, for example, to cut travertine or to saw marble. Due to the geological location, only strongly acidic water is often available for cooling. This leads to relatively rapid and severe corrosion of the steel saw blades. This corrosion also occurs at the base of the individual teeth, which are usually soldered onto the steel saw blade. Since corrosion of a steel sheet in the area of the teeth impairs the hold of the teeth, it is necessary to place the steel sheets in the edge area in which they trapped the teeth to undergo special pretreatment to protect against corrosion. In known frame saws, this is done by applying a wear protection layer in the so-called flame spraying process.
an abrasion-resistant thin layer is applied to the steel sheet, which usually consists of an alloy based on nickel, chromium, silicon and boron.
the protective layer by flame spraying, a powder is used at high temperature and high pressure or sprayed on at high speed. This makes it molten, with temperatures of around 1,000 ° C.
Such high temperatures on the one hand lead to warpage of the sheet and on the other hand cause structural changes in the sheet, which can later lead to breakage in use. Because of this and because of the danger that if the protective layer is not applied properly, the protective layer will subsequently be undermined by corrosion, the method of flame spraying also proves to be inadequate from time to time.
the object of the invention is to provide adequate protection against corrosion of the frame saw blade below the teeth, without having to accept the disadvantages associated with flame spraying.
a tooth is arranged on the outside of the central web of a cross-sectionally U-shaped support made of a corrosion-resistant metal sheet such as a high-quality steel sheet, which is attached to the sheet and connected to it in a force-fitting or cohesive manner.
a corrosion-resistant metal sheet such as a high-quality steel sheet
the new arrangement does not require the steel sheet to be heated so strongly for the attachment of the teeth. Even if the blade is subjected to severe corrosion after a longer period of use, this has no effect on the hold of the teeth.
the carrier can be provided with a solder layer on its three inner sides.
a welded connection is also fundamentally possible, in particular for fastening a tooth on the carrier.
the gang saw blades 1 shown in the drawing have a blade 2 which is made of sheet steel.
U-shaped carrier plates 3 are provided as intermediate carriers in cross section, which are made of V4A steel. These carrier plates 3 are provided on the outside in the middle section with a solder 5 for fastening the teeth 4, which are made of bronze or another material containing diamond or CBN.
a solder layer 6 is arranged on the inside of the U-shaped carrier plates 3 for fastening the carrier plates 3 to the steel sheet 2. It is possible to fasten the individual teeth 4 on the associated carrier plates 3 after heating the same or to connect these three parts to one another simultaneously with the fastening of the carrier plates 3 to a steel sheet 2. Such can be carried out without great effort and without higher thermal stress on the sheet 2 and has the advantage that no additional protective measures need to be taken for a firm hold of the teeth 4 on the sheet 2 in the event of subsequent corrosion.

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Mechanical Engineering (AREA)
Earth Drilling (AREA)
Polishing Bodies And Polishing Tools (AREA)
Connection Of Plates (AREA)

EP88110633A 1987-10-02 1988-07-04 Lame de scie alternative à cadre Expired - Lifetime EP0309660B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3733299		1987-10-02
DE19873733299 DE3733299A1 (de)	1987-10-02	1987-10-02	Gattersaegeblatt

Publications (2)

Publication Number	Publication Date
EP0309660A1 true EP0309660A1 (fr)	1989-04-05
EP0309660B1 EP0309660B1 (fr)	1991-05-22

Family

ID=6337449

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88110633A Expired - Lifetime EP0309660B1 (fr)	1987-10-02	1988-07-04	Lame de scie alternative à cadre

Country Status (4)

Country	Link
EP (1)	EP0309660B1 (fr)
AR (1)	AR244589A1 (fr)
DE (2)	DE3733299A1 (fr)
ES (1)	ES2022541B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2020025143A1 (fr) *	2018-08-03	2020-02-06	Husqvarna Ab	Lames de scie améliorées pour agencements de scie à lames multiples
CN116806180A (zh) *	2020-12-23	2023-09-26	二和金刚石工业株式会社	用于排锯的切割工具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB191300106A (en) *	1913-01-02	1913-11-20	George Anderson And Company 19	Improvements in and relating to the Method of Attaching Abrasive Materials such as Carborundum or the like to Band Saws.
US1866356A (en) *	1930-12-01	1932-07-05	Homer V Jones	Saw tooth
FR1093114A (fr) *	1954-02-10	1955-05-02		Perfectionnements aux lames de scies
US2969053A (en) *	1959-03-06	1961-01-24	Wentzel Carbide Tool Company I	Teeth for reciprocating stone cutting saw blade

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE8327628U1 (de) *		1984-02-09	Bickmeyer, Jochen, 3014 Laatzen	Bandsägeblatt zur Steinbearbeitung
DE730442C (de) *	1937-01-15	1943-01-12	Ludwig Lacher Dipl Ing	Saege mit schwenkbaren Zaehnen
US3580041A (en) *	1968-02-05	1971-05-25	Universal Alufolien Verfahren	Die assembly
DE2803850A1 (de) *	1978-01-30	1979-08-02	Steinbearbeitungs Maschinenfab	Werkzeug fuer eine saegevorrichtung, insbesondere zum saegen von stein

1987
- 1987-10-02 DE DE19873733299 patent/DE3733299A1/de not_active Withdrawn
1988
- 1988-07-04 EP EP88110633A patent/EP0309660B1/fr not_active Expired - Lifetime
- 1988-07-04 ES ES88110633T patent/ES2022541B3/es not_active Expired - Lifetime
- 1988-07-04 DE DE8888110633T patent/DE3862915D1/de not_active Expired - Fee Related
- 1988-09-30 AR AR88312091A patent/AR244589A1/es active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB191300106A (en) *	1913-01-02	1913-11-20	George Anderson And Company 19	Improvements in and relating to the Method of Attaching Abrasive Materials such as Carborundum or the like to Band Saws.
US1866356A (en) *	1930-12-01	1932-07-05	Homer V Jones	Saw tooth
FR1093114A (fr) *	1954-02-10	1955-05-02		Perfectionnements aux lames de scies
US2969053A (en) *	1959-03-06	1961-01-24	Wentzel Carbide Tool Company I	Teeth for reciprocating stone cutting saw blade

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2020025143A1 (fr) *	2018-08-03	2020-02-06	Husqvarna Ab	Lames de scie améliorées pour agencements de scie à lames multiples
CN116806180A (zh) *	2020-12-23	2023-09-26	二和金刚石工业株式会社	用于排锯的切割工具
EP4269055A4 (fr) *	2020-12-23	2024-05-08	Ehwa Diamond Ind. Co. Ltd.	Outil de coupe pour scie alternative
US12528229B2 (en)	2020-12-23	2026-01-20	Ehwa Diamond Ind. Co., Ltd.	Cutting tool for gang saw

Also Published As

Publication number	Publication date
EP0309660B1 (fr)	1991-05-22
ES2022541B3 (es)	1991-12-01
AR244589A1 (es)	1993-11-30
DE3862915D1 (de)	1991-06-27
DE3733299A1 (de)	1989-04-20

Legal Events

Date	Code	Title	Description
1989-02-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1989-08-02	17P	Request for examination filed	Effective date: 19890414
1990-01-03	17Q	First examination report despatched	Effective date: 19891121
1991-04-05	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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1991-06-27	REF	Corresponds to:	Ref document number: 3862915 Country of ref document: DE Date of ref document: 19910627
1991-07-05	ET	Fr: translation filed
1991-07-09	ITF	It: translation for a ep patent filed
1991-08-21	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1992-03-26	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1992-03-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1992-05-13	26N	No opposition filed
1992-05-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 19920529 Year of fee payment: 5
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1992-12-21	EPTA	Lu: last paid annual fee
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