{"id":21311,"date":"2025-07-03T07:27:14","date_gmt":"2025-07-03T07:27:14","guid":{"rendered":"https:\/\/bfymold.com\/?p=21311"},"modified":"2025-07-08T09:43:02","modified_gmt":"2025-07-08T09:43:02","slug":"spi-surface-finish-standards-for-injection-molds","status":"publish","type":"post","link":"https:\/\/bfymold.com\/de\/spi-surface-finish-standards-for-injection-molds\/","title":{"rendered":"Beherrschung der SPI-Normen f\u00fcr die Oberfl\u00e4chenbeschaffenheit von Spritzgusswerkzeugen"},"content":{"rendered":"\n

SPI Oberfl\u00e4cheng\u00fcteklassen entmystifiziert<\/h2>\n\n

Die SPI-Normen klassifizieren Formoberfl\u00e4chen<\/a> in vier Kategorien mit genauen Rauheitswerten (Ra) und Verarbeitungsmethoden:<\/p>\n\n

<\/div>\n\n
\"SPI
SPI Oberfl\u00e4cheng\u00fcte<\/figcaption><\/figure>\n\n
<\/div>\n\n

SPI Klasse A: Diamantpolieren (optische Klarheit)<\/h3>\n\n
Klasse<\/td>Ra (\u00b5m)<\/td>Methode<\/td>Anwendungen<\/td><\/tr>
A-1<\/td>0.012-0.025<\/td>#3, Diamantpaste mit 6000er K\u00f6rnung<\/td>Medizinische Linsen, Lichtleiter<\/td><\/tr>
A-2<\/td>0.025-0.05<\/td>#6, 3000er Diamantpaste<\/td>Transparente Abdeckungen, Reflektoren<\/td><\/tr>
A-3<\/td>0.05-0.10<\/td>#15, 1200er-Korn Diamantpaste<\/td>Komponenten anzeigen<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

SPI Klasse B: Sandpapierpolieren (Halbglanz)<\/h3>\n\n
Klasse<\/td>Ra (\u00b5m)<\/td>Methode<\/td>Anwendungen<\/td><\/tr>
B-1<\/td>0.05-0.10<\/td>Schleifpapier 600er-K\u00f6rnung<\/td>Unterhaltungselektronik<\/td><\/tr>
B-2<\/td>0.10-0.15<\/td>Schleifpapier 400er-K\u00f6rnung<\/td>Kosmetische Verpackungen<\/td><\/tr>
B-3<\/td>0.28-0.32<\/td>Schleifpapier mit 320er K\u00f6rnung<\/td>Industriegeh\u00e4use<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

SPI Klasse C: Steinpolieren (mattes Finish)<\/h3>\n\n
Klasse<\/td>Ra (\u00b5m)<\/td>Methode<\/td>Anwendungen<\/td><\/tr>
C-1<\/td>0.35-0.40<\/td>Stein der K\u00f6rnung 600<\/td>Automobil-Innenausstattung<\/td><\/tr>
C-2<\/td>0.45-0.55<\/td>Stein mit 400er K\u00f6rnung<\/td>Griffe f\u00fcr Werkzeuge<\/td><\/tr>
C-3<\/td>0.63-0.70<\/td>320er-K\u00f6rnung<\/td>Einfallstellen kaschieren<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

SPI Klasse D: Strahlen (strukturierte Oberfl\u00e4chen)<\/h3>\n\n
Klasse<\/td>Ra (\u00b5m)<\/td>Methode<\/td>Anwendungen<\/td><\/tr>
D-1<\/td>0.80-1.00<\/td>#11 Glasperlen<\/td>Kratzfeste Oberfl\u00e4chen<\/td><\/tr>
D-2<\/td>1.00-2.80<\/td>#240 Aluminiumoxid<\/td>Anti-Rutsch-Werkzeuge<\/td><\/tr>
D-3<\/td>3.20-18<\/td>Aluminiumoxid #24<\/td>Schweres Ger\u00e4t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

Vergleich SPI vs. VDI 3400<\/h2>\n\n
Parameter<\/td>SPI-Norm<\/td>VDI 3400 \u00c4quivalent<\/td><\/tr>
Optisches Finish<\/td>A-1 (0.012\u00b5m)<\/td>VDI 0 (0.025\u00b5m)<\/td><\/tr>
Halbglanz<\/td>B-1 (0.05\u00b5m)<\/td>VDI 12 (0.15\u00b5m)<\/td><\/tr>
Matte Textur<\/td>C-2 (0.50\u00b5m)<\/td>VDI 25 (1.0\u00b5m)<\/td><\/tr>
Grobe Textur<\/td>D-3 (12.5\u00b5m)<\/td>VDI 40 (18\u00b5m)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n
\"Oberflächengüte
SPI-Oberfl\u00e4chenbehandlung ( Bildquelle: Protolabs )<\/figcaption><\/figure>\n\n
<\/div>\n\n

Branchenspezifische Anwendungen<\/h2>\n\n
<\/div>\n\n

Medizinische Ger\u00e4te<\/h3>\n\n
Anforderung<\/td>SPI-L\u00f6sung<\/td>Nutzen Sie<\/td><\/tr>
Bakterielle Resistenz<\/td>A-1 (Ra 0.025\u00b5m)<\/td>100 % FDA-Wischtest-Erfolgsquote<\/td><\/tr>
Autoklavierbare Oberfl\u00e4chen<\/td>B-1 + Passivierung<\/td>500+ Sterilisationszyklen<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

Unterhaltungselektronik<\/h3>\n\n
Anforderung<\/td>SPI-L\u00f6sung<\/td>Nutzen Sie<\/td><\/tr>
Kratzfreie Einfassungen<\/td>A-3 + harte Beschichtung<\/td>5H Bleistifth\u00e4rte<\/td><\/tr>
Resistenz gegen Fingerabdr\u00fccke<\/td>D-1 Textur<\/td>70 % weniger sichtbare Schmutzflecken<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
<\/div>\n\n

Das Pr\u00e4zisionsverfahren von BFY Mold<\/h2>\n\n
    \n
  1. Laser-Scanning: Erkennen von Abweichungen >0,005 mm<\/li>\n\n\n\n
  2. Roboterpolieren: Erzielen Sie eine Ra-Konsistenz von \u00b10,01\u00b5m<\/li>\n\n\n\n
  3. 3D-Validierung: Oberfl\u00e4chenkartierung pro Teil<\/li>\n\n\n\n
  4. Elektrochemische Wartung: Abgenutzte Texturen wiederherstellen<\/li>\n<\/ol>\n\n
    <\/div>\n\n

    8 Wichtige FAQs zum SPI-Oberfl\u00e4chenfinish<\/h2>\n\n
      \n
    1. Welche SPI-Sorte verdeckt Einfallstellen am besten?SPI C-2 (Ra 0,45-0,55\u00b5m) maskiert Einfallstellen in glasgef\u00fcllten Polymeren.<\/li>\n<\/ol>\n\n
        \n
      1. Wie reduziert SPI A-2 die Ablehnung von Teilen?Reduziert die Flie\u00dflinien um 60 % im Vergleich zu unpolierten Formen.<\/li>\n<\/ol>\n\n
          \n
        1. Wie lange ist die Vorlaufzeit f\u00fcr die SPI D-2-Texturierung?7-10 Tage f\u00fcr Standardformen bei BFY Mold.<\/li>\n<\/ol>\n\n
            \n
          1. K\u00f6nnen SPI-Veredelungen glasgef\u00fclltem Nylon standhalten?Verwenden Sie mindestens SPI B-2; vermeiden Sie Klasse A f\u00fcr abrasive Materialien.<\/li>\n<\/ol>\n\n
              \n
            1. Wie kann man SPI auf Formzeichnungen angeben?Vermerken: \u201eFERTIGSTELLUNG: SPI B-1 GEM\u00c4SS SPI STD-123\u201c.<\/li>\n<\/ol>\n\n
                \n
              1. Verbessert SPI D-3 die Lackhaftung?Ja: 5x st\u00e4rkere Haftung als bei polierten Oberfl\u00e4chen (ASTM D4541).<\/li>\n<\/ol>\n\n
                  \n
                1. Kostenunterschied zwischen SPI A-1 und B-1?A-1 f\u00fcgt aufgrund des manuellen Polierens 25-40 % hinzu.<\/li>\n<\/ol>\n\n
                    \n
                  1. Wiederherstellung abgenutzter SPI-Veredelungen?Durch elektrochemische Texturierung werden 95 % des urspr\u00fcnglichen Ra wiederhergestellt.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

                    SPI Oberfl\u00e4cheng\u00fcteklassen entmystifiziert Die SPI-Normen klassifizieren Formoberfl\u00e4chen in vier Kategorien mit genauen Rauheitswerten (Ra) und Verarbeitungsmethoden: SPI Klasse A: Diamantpolieren (optische Klarheit) Klasse Ra (\u00b5m) Methode Anwendungen A-1 0.012-0.025 #3, Diamantpaste mit 6000er K\u00f6rnung Medizinische Linsen, Lichtleiter A-2 0.025-0.05 #6, 3000er Diamantpaste Transparente Abdeckungen, Reflektoren A-3 0.05-0.10 #15, 1200er-Korn Diamantpaste Komponenten anzeigen SPI Klasse B: […]<\/p>\n","protected":false},"author":1,"featured_media":21254,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[50],"tags":[],"class_list":["post-21311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/posts\/21311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/comments?post=21311"}],"version-history":[{"count":0,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/posts\/21311\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/media\/21254"}],"wp:attachment":[{"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/media?parent=21311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/categories?post=21311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bfymold.com\/de\/wp-json\/wp\/v2\/tags?post=21311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}