ES2523702T3 - Procedimiento para el revestimiento de superficies metálicas con una capa de fosfato y después de esto con una capa de material lubricante polimérico - Google Patents

Procedimiento para el revestimiento de superficies metálicas con una capa de fosfato y después de esto con una capa de material lubricante polimérico Download PDF

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ES2523702T3
ES2523702T3 ES09705226.0T ES09705226T ES2523702T3 ES 2523702 T3 ES2523702 T3 ES 2523702T3 ES 09705226 T ES09705226 T ES 09705226T ES 2523702 T3 ES2523702 T3 ES 2523702T3
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layer
lubricating material
phosphate
weight
content
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Uwe Rau
Klaus-Dieter Nittel
Andreas Lang
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Chemetall GmbH
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    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
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Abstract

Procedimiento para la preparación previa de piezas de trabajo metálicas para la conformación en frío, en primer lugar por aplicación de una capa de fosfato y después de esto por aplicación de una capa de material lubricante que tiene un contenido de un material orgánico polimérico, que en lo sucesivo es designada también como revestimiento, caracterizado por que la capa de fosfato es formada con una solución acuosa de fosfatación de carácter ácido, que contiene de 4 a 100 g/l de unos compuestos de calcio, magnesio o/y manganeso incluyendo a sus iones, calculado como calcio, magnesio y manganeso, no contiene nada de zinc o contiene zinc en menos de 30 % en peso de los cationes, así como de 2 a 500 g/l de un fosfato, calculado como PO4, y por que la capa de material lubricante es formada mediante una puesta en contacto de la superficie fosfatada con una composición acuosa de material lubricante, que tiene un contenido de por lo menos un ionómero de 3 a 98 % en peso de los materiales sólidos y activos, y que como un óxido o/y silicato soluble en agua, que contiene agua o/y que fija agua, contiene en cada caso por lo menos un vidrio soluble, un gel de sílice, un sol de sílice, un hidrosol de ácido silícico, un éster de ácido silícico o/y un etil-silicato en un contenido de 0,1 a 85 % en peso de los materiales sólidos y activos así como eventualmente también contiene un material orgánico polimérico no ionómero que está constituido sobre la base de uno o varios monómeros del tipo de ácido acrílico/ácido metacrílico, epóxido, etileno, poliamida, propileno, estireno, uretano, su(s) éster(es) o/y su(s) sal(es), utilizándose para la neutralización de la composición de material lubricante en cada caso por lo menos una amina primaria, secundaria o/y terciaria, en particular por lo menos un aminoalcohol, siendo por lo menos un material orgánico polimérico saponificado por lo menos parcialmente o/y presentándose por lo menos parcialmente en forma de por lo menos una sal orgánica en la composición de material lubricante o/y en el revestimiento .

Description

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Tabla 1
Adiciones en g/l
B 1 B 2 B 3 B 4 B 5 B6 VB 7 B 8 B9 B10
PO4
39,0 19,5 39,0 39,0 19,5 39,0 12,0 13,8 39,0 39,0
P2O3
29,3 14,7 29,3 29,3 14,7 293 9,0 10,4 29,3 29,3
Ca
22,0 11,0 11,0 - - - 3,1 8,3 22,0 22,0
Mg
- - - 11,6 - - 3,0 - - 5,0
Mn
- - 11,2 11,2 15,1 30,2 - - - -
Zn
- - - - - - 6,0 5,0 - -
Ni
- - - - - - 0,3 - - -
NO3 -
68,2 34,1 59,3 84,7 34,1 68,2 22,8 24,6 68,2 93,7
ClO3 -
- 13,2 26,4 - - - - - - -
Nitroguanidina
1,0 - - - - 1,0 - 1,0 - -
Ácido heterocíclico
- - - - - 5,0 - - - -
pH
2,0 2,0 1,9 2,2 2,2 2,0 2,1 2,1 2,0 2,0
FS
11,70 5,90 11,8 7,5 5,5 8,6 3,4 8,8 12,10 10,40
GSF
45,2 21,0 44,0 48,0 22,2 43,6 7,6 8,8 46,0 44,1
GS
78 42 89 80 49 91 20 26 82 84
Valor de S
0,26 0,28 0,27 0,16 0,25 0,20 0,45 1,0 0,26 0,24
B 1ª
B 1b B 1c B 2 B 3 B 4 B 5 B 6 VB 7 B 8 B 9 B 10a B 10b
Tensión eléctrica media V
5,5 8 15 6,5 5,0 5,0 5,0 5,5 - - 5,5 4,5 12
Proporción de corriente alterna A/dm2
6,5 - - - - - - - - - - 10 -
Frecuencia Hz
1 - - - - - - - - - - 1 -
Proporción de corriente continua A/dm2
13,0 60,0 120,0 13,4 13,7 5,7 12,2 13,5 - - 16,0 19,1 80,0
Período de tiempo de tratamiento s
10 2 1 10 5 10 10 10 20 20 5 5 2
Color del revestimiento
blanco blanco – gris claro blanco – gris claro blanco blanco – gris claro gris blanco blanco gris oscuro gris oscuro gris claro gris Blanco
Calidad visual de la capa
buena muy buena muy buena buena Buena mediana muy buena muy buena buena buena mediana buena buena
Resistencia de adherencia de la capa
muy buena muy buena muy buena buena Buena buena buena muy buena buena buena buena buena buena
imagen22
Tabla 2
Ejemplo
B 11 B 12 B 13 B 14 B 15 B 16 B 17
Etilen-acrilato**
9,3 23,5 29,7 34,0 65,5 95,2 95,2
Tipo de etilen-acrilato**
B B B B A A A
Polímero acrílico
6,8 13,2 - - 0,8 - -
Estiren-acrilato
- - 7,8 - 7,9 14,4 -
Proporción de aminoalcohol*
2,4 7,2 8,4 6,9 10,1 18,3 18,3
Agente espesante polimérico
11,2 11,2 5,5 - - - -
Ceras
52,2 43,5 32,5 50,4 20,2 28,2 -
Número de las ceras
2 3 2 3 2 3 -
Te/Tm de las ceras ºC
68 + 148 68 + 143 + 148 85 + 148 68 + 143 + 148 85 + 148 68 + 85 + 148 -
Vidrio soluble
9,2 7,0 6,5 1,8 2,5 3,2 2,5
Materiales lubricantes sólidos
- - - - - - -
Valor del pH
9,4 9,3 9,5 9,5 9,3 9,6 9,8
utilizable para
AZ GZ KFP KS TZ AZ GZ KFP KS TZ AZ GZ KFP KS TZ AZ GZ KFP KS TZ AZ GZ KFP KS TZ KFP KS KFP
Grado ce conformación max.
mediano Difícil dificil dificil dificil dificil muy dificil
Ejemplo
B 18 B 19 B 20 B 21 B 22 B 23
Etilen-acrilato**
6,2 11,8 14,1 18,7 24,1 43,3
Tipo de etilen-acrilato**
C + D C + D C + D C C C
Polímero acrílico
6,0 - - - 0,2 1,4
Estiren-acrilato
14,3 9,2 11,9 15,9 3,6 2,8
Ceras
56,0 29,2 38,2 50,1 67,8 35,6
Número de las ceras
3 3 3 3 2 3
Te/Tm de las ceras ºC
68 + 85 + 143 68 + 143 + 148 68 + 143 + 148 68 + 143 + 148 85 + 148 85 + 143 + 148
Vidrio soluble
4,0 1,8 2,5 5,2 3,4 8,7
Materiales lubricantes sólidos
- 39,9 grafito 21,0 MoS2 - - -
Valor del pH
9,2 9,0 9,7 8,5 8,0 9,2
imagen23
imagen24

Claims (1)

  1. imagen1
    imagen2
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