DE7635410U1 - HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED - Google Patents

HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED

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Publication number
DE7635410U1
DE7635410U1 DE19767635410 DE7635410U DE7635410U1 DE 7635410 U1 DE7635410 U1 DE 7635410U1 DE 19767635410 DE19767635410 DE 19767635410 DE 7635410 U DE7635410 U DE 7635410U DE 7635410 U1 DE7635410 U1 DE 7635410U1
Authority
DE
Germany
Prior art keywords
stainless steel
nitrated
cutter surface
knife made
household knife
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.)
Expired
Application number
DE19767635410
Other languages
German (de)
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.)
Appel Karl Dr-Ing 5800 Hagen
Original Assignee
Appel Karl Dr-Ing 5800 Hagen
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 Appel Karl Dr-Ing 5800 Hagen filed Critical Appel Karl Dr-Ing 5800 Hagen
Priority to DE19767635410 priority Critical patent/DE7635410U1/en
Publication of DE7635410U1 publication Critical patent/DE7635410U1/en
Expired legal-status Critical Current

Links

Description

t ·t

DR.INQ. KARL APPEL ,!,'Λ.' * \/ J '· ! 58 HAGEN-FUBY 23.4.1977 B.UI.b.dlroMor i. R. Knlpp.ohlld.tr.B· 40 DR.INQ. KARL APPEL ,!, 'Λ.' * \ / J '· ! 58 HAGEN-FUBY 23.4.1977 B.UI.b.dlroMor i. R. Knlpp.ohlld.tr.B 40

T.I.(on 01134T.I. (on 01134

Betr.« Os 76 35 410.4Betr. «Os 76 35 410.4

Anmelden Dr.Ing.Karl Appel,Khippsohildstr.40Register Dr.Ing.Karl Appel, Khippsohildstr. 40

5800 Hagen-Pley5800 Hagen-Pley

Gegenstand:Haushaltsmesser aus niohtrostendem Stahl rait nitrierter Oberfläche.Subject: Household knife made of rustproof steel rait nitrided surface.

Beschreibung.Description.

Bekanntlich liegt die Härte der Messer aus nichtrostendem Stahl wesentlich miedriger als die von Messern aus gehärtetem Kohlenstoffstahl.Infolgedessen ist auch die Schneidschärfe der Messer aus nichtrostendem Stahl wesentlich geringer ζ-ls die der Messer aus gehärtetem Kohlenstoffstahl. Erfindungsgemäss wird vorgeschlagen,die Härte der nichtrostendeh Messerklinge durch Nitrieren auf die Härte der Messerklingen aus gehärtetem Kohlenstoffstahl zu erhöhen. Durch das Nitrieren wird die Schneidschärfe und die Schneidhaltigkeit der nichtrostenden Messerklinge wesentlich verbesser. . An und für sich würde es genügen,wenn nur die Messerschneide nitriert würde.As is well known, the hardness of knives made of stainless steel is considerably lower than that of knives made of hardened steel As a result, the sharpness of the knife made of stainless steel is also essential lower ζ-ls that of the hardened carbon steel knives. According to the invention it is proposed that the hardness of the Stainless knife blade by nitriding to hardness of hardened carbon steel knife blades. Nitriding increases the sharpness and durability the stainless knife blade much better. . In and of itself it would be enough if only the Knife edge would be nitrided.

Der Nitriervorgang würde dann aber schwieriger und kostspieliger werden.The nitriding process would then become more difficult and expensive.

Das Nitrieren von Haushaltmessern aus nichtrostendem Stahl ist bisher nicht bekannt,wie auch vom Patentamt im Schreiben P 1553631,9-45 vom 24.8.76 bestätigt wird.Der Grund dafür,dass Messer bisher nicht nitriert wurden,dürfte der sein, dass bei Gegenständeny.die im Gebrauch Biegespannungen ausgesetzt sind,vom Nitrieren abgeraten wird,da dann bei auftretenden Biegebeanspruchungen leicht Rissbildung eintritt.Die > trifft in der Tat zu,wenn die Oberfläche des Gegenstandes auf volle Nitrierhärte (über 900 ICp/ mm Vickershärte) nitriert scxrt ist.Dagegen wurde festgestellt,dass nichtrostende Messerklingen jegliche Biegebeanspruchunger: aushalten,wenn die Nitrierhärte unter 900 Kp/mm Vickershärte gehalten wird.The nitriding of household knives made of stainless steel is not yet known, as is confirmed by the patent office in letter P 1553631,9-45 of August 24th, 1976. The reason why knives have not been nitrided so far is probably that objects y .that are exposed to bending stresses during use, nitriding is not advised, as cracking can easily occur when bending stresses occur.> In fact, this applies if the surface of the object is nitrided to full nitriding hardness (over 900 ICp / mm Vickers hardness). On the other hand, it was found that stainless knife blades can withstand any bending stress, if the nitriding hardness is kept below 900 Kp / mm Vickers hardness.

7635410 28.07.777635410 07/28/77

Claims (1)

^rwnwWrTr™^ rwnwWrTr ™ 4 1 Il I·· «III I III4 1 Il I ·· «III I III , ι ι iti a«, ι ι iti a « III I · I « I ιIII I · I «I ι Dr.Ing. Karl Appel "Λ/ ' !,,5"·' f j | Hage»«ney 23.4.77 Betriebsdirektor 1*R· KnlppBohlldstr.40Dr.Ing. Karl Appel "Λ / '! ,, 5"·' f j | Hage »« ney 23.4.77 Operations Director 1 * R · KnlppBohlldstr.40 Betr,l 0 76 35 410,4Betr, l 0 76 35 410.4 S chutzansprüohft,Protection claims, Haushaltemesser aus nichtrostendem Stahl dadurch gekennzeichnet,dass die Messerklinge ,mindestens aber die Schneide,nitriert ist. Household knife made of stainless steel characterized in that the knife blade, but at least the cutting edge, is nitrided.
DE19767635410 1976-09-25 1976-09-25 HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED Expired DE7635410U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19767635410 DE7635410U1 (en) 1976-09-25 1976-09-25 HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19767635410 DE7635410U1 (en) 1976-09-25 1976-09-25 HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED

Publications (1)

Publication Number Publication Date
DE7635410U1 true DE7635410U1 (en) 1977-07-28

Family

ID=6671130

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19767635410 Expired DE7635410U1 (en) 1976-09-25 1976-09-25 HOUSEHOLD KNIFE MADE OF STAINLESS STEEL, WHICH CUTTER SURFACE IS NITRATED

Country Status (1)

Country Link
DE (1) DE7635410U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204000A1 (en) * 1992-02-12 1993-08-19 Esm Ennepetaler Schneid U Maeh STEEL BLADE FOR AGRICULTURAL AND FORESTRY PURPOSES AND METHOD FOR THEIR PRODUCTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204000A1 (en) * 1992-02-12 1993-08-19 Esm Ennepetaler Schneid U Maeh STEEL BLADE FOR AGRICULTURAL AND FORESTRY PURPOSES AND METHOD FOR THEIR PRODUCTION

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