CS239590B1 - Stainless steel pickling method - Google Patents
Stainless steel pickling method Download PDFInfo
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- CS239590B1 CS239590B1 CS84956A CS95684A CS239590B1 CS 239590 B1 CS239590 B1 CS 239590B1 CS 84956 A CS84956 A CS 84956A CS 95684 A CS95684 A CS 95684A CS 239590 B1 CS239590 B1 CS 239590B1
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Abstract
Účelom vynálezu je sposob morenia nehrdzavejúeej ocele, t. j. úprava povrchu materiálu před lepením. Očinkom· moridla vzniká velmi jemné a rovnoměrné zdrsnenie povrchu adherenta. Uvedeného účelu sa dosiahne tak, že morenie je prevádzané v zmesi zloženej z 25 až 90 hmot. % chloridu železitého, z 5 až 60 hmot. % kyseliny chlorovodíkovej a z 10 až 70 hmot. % destilovanej vody pri teplote 20 až 80 °C.The purpose of the invention is a method of pickling stainless steel, i.e. treatment of the surface of the material before bonding. The effect of the pickling agent creates a very fine and uniform roughening of the adherent surface. The stated purpose is achieved by the pickling being carried out in a mixture composed of 25 to 90 wt. % ferric chloride, 5 to 60 wt. % hydrochloric acid and 10 to 70 wt. % distilled water at a temperature of 20 to 80 °C.
Description
Vynález sa týká sposobu morenia nehrdzavejúcej ocele.The present invention relates to a method of pickling stainless steel.
Morenie je najdoležitejší spQsob úpravy povrchu materiálu před lepením. Účinkom moiridla vzniká velmi jemné a rovnoměrné zdrsnenie povrchu materiálu.Pickling is the most important way of treating the surface of a material before bonding. The effect of the myricidal agent is a very fine and even roughening of the material surface.
Doteraz známe sposoby morenia nehrdzavejúcej ocele sú prevádzané v zmesi kyseliny sírovej a kyseliny šťavelovej. Nevýhodou tohoto sposobu morenia je vysoká teplota, pri ktorej morenie prebieha (80 až 95 stupňov· Celsia). Pri qériovej výrobě je technológia morenia energeticky náročná a vyžaduje vysoké nároky na kvalitu materiálu vání, v ktorých je morenie prevádzané, hlavně pri moření váčších plQch. Další známy spQsob morenia nehrdzavejúcej ocele je v zmesi zloženej z kyseliny chlorovodíkovej, formalínu a peroxidu vodíka. Teplota morenia je 60 °C. Nevýhodou tohoto sposobu morenia je velká spotřeba peroxidu vodíka. Pri sériovej výrobě je tento spQsob ekonomicky nevýhodný, nakolko peroxid vodíka je dovozná chemikália. Ďalší známy sposob morenia nehrdzavejúcej ocele je v zmesi zloženej z 15 až 20 °/o chloridu železitého a z 5 až 20 °/o kyseliny chlorovodíkovej. Nevýhodou tohoto sposobu morenia je vysoká teplota, pri ktorej morenie prebieha (75 až 90 °C).So far known methods of staining stainless steel are carried out in a mixture of sulfuric acid and oxalic acid. The disadvantage of this method of pickling is the high temperature at which pickling takes place (80 to 95 degrees Celsius). In qerial production, pickling technology is energy-intensive and requires high demands on the quality of the material in which pickling is carried out, especially when picking up larger plQch. Another known method of pickling stainless steel is in a mixture consisting of hydrochloric acid, formalin and hydrogen peroxide. Pickling temperature is 60 ° C. The disadvantage of this method of pickling is the high consumption of hydrogen peroxide. In mass production, this process is economically disadvantageous since hydrogen peroxide is an import chemical. Another known method of pickling stainless steel is in a mixture comprised of 15 to 20% iron (III) chloride and 5 to 20% hydrochloric acid. The disadvantage of this method of pickling is the high temperature at which pickling takes place (75 to 90 ° C).
Vyššie uvedené nedostatky sú odstraněné sposobom morenia nehrdzavejúcej ocele podfa tohoto vynálezu, ktorý spočívá v tom, že morenie sa prevádza v zmesi zloženej z 25 až 90 hmot. % chloridu železitého, z 5 až 60 hmot. % kyseliny chlorovodíkovej a z 10 až 70 hmot. % destilovanej vody. Teplota morenia je 20 až 80 °C.The aforementioned drawbacks are eliminated by the process of pickling stainless steel according to the present invention, which comprises pickling the pickling in a mixture of 25 to 90 wt. % iron (III) chloride, from 5 to 60 wt. % hydrochloric acid and from 10 to 70 wt. % distilled water. The pickling temperature is 20 to 80 ° C.
Hlavná výhoda sposobu morenia nehrdzavejúcej ocele podía tohoto vynálezu spočívá v tom, že morenie je prevádzané za studená alebo pri nižších teplotách (20 až 80°C). Štruktúru zdrsněného povrchu mořeného materiálu je možné upravovat změnou koncentrácie moridla, čím možno dosiahnúť rožnu hrůbku a pQrovitosť vrstvičky, ktorá vzniká na povrchu mořeného materiálu. Takto mořený povrch nehrdzavejúcej ocele je možné lepit s viacerými typmi lepidiel s dosiahnutýmí dobrými výsledkami skúšky na odtrh. Příklady prevedenia Příklad 1The main advantage of the process of pickling stainless steel according to the present invention is that pickling is carried out cold or at lower temperatures (20 to 80 ° C). The texture of the roughened surface of the pickled material can be adjusted by varying the concentration of the pickling agent, thereby obtaining a spit and a layer that is formed on the surface of the pickled material. This stained stainless steel surface can be bonded with multiple types of adhesives with good tear test results. EXAMPLES Example 1
Sposob morenia nehrdzavejúcej ocele v zmesi zloženej z 30 hrnut. % chloridu železitého, z 25 hmot. % kyseliny chlorovodíkovej a z 45 hmot. % destilovanej vody. Teplota morenia je 55 °C. Příklad 2The method of pickling stainless steel in a mixture consisting of 30 pounds. % of ferric chloride, from 25 wt. % hydrochloric acid and 45 wt. % distilled water. The pickling temperature is 55 ° C. Example 2
SpQsob morenia nehrdzavejúcej ocele v zmesi zloženej z 55 hmot. % chloridu železitého, z 25 hmot. °/o kyseliny chlorovodíkovej a z 20 % destilovanej vody. Teplota morenia je 30 °C.The way of pickling stainless steel in a mixture of 55 wt. % of ferric chloride, from 25 wt. Hydrochloric acid and 20% distilled water. Pickling temperature is 30 ° C.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS84956A CS239590B1 (en) | 1984-02-10 | 1984-02-10 | Stainless steel pickling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS84956A CS239590B1 (en) | 1984-02-10 | 1984-02-10 | Stainless steel pickling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS95684A1 CS95684A1 (en) | 1985-06-13 |
| CS239590B1 true CS239590B1 (en) | 1986-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS84956A CS239590B1 (en) | 1984-02-10 | 1984-02-10 | Stainless steel pickling method |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS239590B1 (en) |
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1984
- 1984-02-10 CS CS84956A patent/CS239590B1/en unknown
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| Publication number | Publication date |
|---|---|
| CS95684A1 (en) | 1985-06-13 |
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