{"id":20099,"date":"2024-05-22T15:52:57","date_gmt":"2024-05-22T07:52:57","guid":{"rendered":"https:\/\/firstmold.com\/?p=20099"},"modified":"2025-07-15T13:33:02","modified_gmt":"2025-07-15T05:33:02","slug":"guide-pins-and-guide-bushings","status":"publish","type":"post","link":"https:\/\/firstmold.com\/fr\/guides\/guide-pins-and-guide-bushings\/","title":{"rendered":"Goupilles et douilles de guidage dans les moules d'injection"},"content":{"rendered":"<p>Les moules d'injection sont dot\u00e9s d'un important syst\u00e8me de guidage, compos\u00e9 principalement de broches et de douilles de guidage. En tant que dispositifs de guidage, ils doivent faire l'objet d'une attention particuli\u00e8re lors de l'achat (ou de la fabrication), de la conception et de l'assemblage.<\/p>\n\n\n\n<p>Cet article pr\u00e9sente en d\u00e9tail les goupilles de guidage et les douilles de guidage. Les passionn\u00e9s de moulage pourront le conserver comme r\u00e9f\u00e9rence.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings-1024x640.webp\" alt=\"Goupilles de guidage et douilles de guidage\" class=\"wp-image-20107\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings-1024x640.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings-300x188.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings-768x480.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings-18x12.webp 18w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-pins-and-guide-bushings.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-are-guide-pins-and-guide-bushings-in-molds\">Que sont les goupilles de guidage et les douilles de guidage dans les moules ?<\/h2>\n\n\n\n<p>Les goupilles et les douilles de guidage sont des composants d'ajustement de pr\u00e9cision couramment utilis\u00e9s dans la fabrication de moules. Ils servent principalement \u00e0 positionner et \u00e0 soutenir les pi\u00e8ces pendant le processus. Les goupilles de guidage sont g\u00e9n\u00e9ralement de longues pi\u00e8ces en forme de bande aux formes vari\u00e9es, mais elles sont g\u00e9n\u00e9ralement cylindriques ou carr\u00e9es. Les douilles de guidage sont les manchons des goupilles de guidage et se pr\u00e9sentent \u00e9galement sous diff\u00e9rentes formes.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"480\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin-1024x480.webp\" alt=\"Une goupille de guidage\" class=\"wp-image-20104\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin-1024x480.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin-300x141.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin-768x360.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin-18x8.webp 18w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/A-guide-pin.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings-1024x538.webp\" alt=\"Bagues de guidage\" class=\"wp-image-20106\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings-1024x538.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings-300x158.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings-768x403.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings-18x9.webp 18w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Guide-bushings.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fitting-methods-of-guide-pins-and-guide-bushings\">M\u00e9thodes de montage des goupilles de guidage et des douilles de guidage<\/h3>\n\n\n\n<p>Il existe plusieurs m\u00e9thodes de montage, les plus courantes \u00e9tant l'ajustement par jeu et l'ajustement par interf\u00e9rence. L'ajustement par jeu laisse un certain espace entre l'axe de guidage et la bague afin de r\u00e9duire la d\u00e9formation caus\u00e9e par la dilatation et la contraction thermiques. L'ajustement par interf\u00e9rence implique un contact \u00e9troit avec la pression entre l'axe de guidage et la bague, offrant un support et un positionnement plus robustes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-functions-of-guide-pins-and-guide-bushings\">Fonctions des axes de guidage et des douilles de guidage<\/h3>\n\n\n\n<p>Ils remplissent principalement deux fonctions dans l'usinage :<\/p>\n\n\n\n<p><strong>Positionnement :<\/strong> Gr\u00e2ce \u00e0 un traitement et \u00e0 un appariement pr\u00e9cis, ils assurent un positionnement exact, ce qui permet d'usiner et de manipuler les pi\u00e8ces \u00e0 traiter en fonction de positions pr\u00e9d\u00e9termin\u00e9es.<\/p>\n\n\n\n<p><strong>Pr\u00e9vention de la gigue :<\/strong> Dans le domaine de l'usinage, les vibrations et les chocs sont souvent \u00e0 l'origine de l'instabilit\u00e9 et de la d\u00e9viation des pi\u00e8ces. L'ajustement entre les deux pi\u00e8ces emp\u00eache cela, garantissant ainsi la pr\u00e9cision et la qualit\u00e9 de l'usinage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-types-of-guide-pins-and-bushings\">Types de goupilles de guidage et de bagues<\/h3>\n\n\n\n<p>Les goupilles de guidage les plus courantes sont les goupilles de guidage \u00e0 t\u00eate et les goupilles de guidage fix\u00e9es par boulon. <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"540\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/types-of-guide-pins.webp\" alt=\"types de goupilles de guidage\" class=\"wp-image-20110\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/types-of-guide-pins.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/types-of-guide-pins-300x162.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/types-of-guide-pins-768x415.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/types-of-guide-pins-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>Nous pouvons classer les bagues en deux cat\u00e9gories : les bagues droites (a) et les bagues \u00e0 t\u00eate (b, c, d).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"397\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-guide-bushings.webp\" alt=\"Types de bagues de guidage\" class=\"wp-image-20109\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-guide-bushings.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-guide-bushings-300x119.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-guide-bushings-768x305.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-guide-bushings-18x7.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Figure a :<\/strong> Douille droite, utilis\u00e9e dans les situations n\u00e9cessitant une faible longueur de trou de guidage ou lorsque le gabarit est trop \u00e9pais.<\/li>\n\n\n\n<li><strong>Figure b :<\/strong> La t\u00eate d'extr\u00e9mit\u00e9 est rivet\u00e9e pour \u00e9viter que la douille droite ne soit arrach\u00e9e par la goupille de guidage.<\/li>\n\n\n\n<li><strong>Figure c :<\/strong> Douille \u00e0 t\u00eate utilis\u00e9e lorsque l'\u00e9paisseur du gabarit ne r\u00e9pond pas \u00e0 l'exigence de longueur du trou de guidage. Nous devons l'installer avec un ajustement plus l\u00e2che que le gabarit primaire.<\/li>\n\n\n\n<li><strong>Figure d :<\/strong> Bague rainur\u00e9e, utilis\u00e9e pour r\u00e9duire le frottement lorsque le diam\u00e8tre est important.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-arrangement-in-the-mold-design\">Arrangement dans la conception du moule<\/h2>\n\n\n\n<p>Un moule comporte g\u00e9n\u00e9ralement 2 \u00e0 4 broches de guidage. Les moules de petite taille ou portables en ont g\u00e9n\u00e9ralement 2. Les moules de taille moyenne \u00e0 grande en ont 3 \u00e0 4, 4 \u00e9tant la configuration la plus courante.<\/p>\n\n\n\n<p>Pour respecter le principe d'une direction unique de fermeture des moules, nous les disposons g\u00e9n\u00e9ralement de deux mani\u00e8res :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>R\u00e9partition sym\u00e9trique, avec des diam\u00e8tres variables pour l'une des broches de guidage.<\/li>\n\n\n\n<li>R\u00e9partition asym\u00e9trique, avec des diam\u00e8tres identiques mais une broche de guidage positionn\u00e9e de mani\u00e8re asym\u00e9trique.<\/li>\n<\/ol>\n\n\n\n<p>Pour un guidage stable, il est pr\u00e9f\u00e9rable de placer les broches de guidage plus loin les unes des autres, g\u00e9n\u00e9ralement \u00e0 l'ext\u00e9rieur de la cavit\u00e9. La distance entre la paroi du trou de guidage et le bord du gabarit ne doit pas \u00eatre trop proche, elle est g\u00e9n\u00e9ralement l\u00e9g\u00e8rement sup\u00e9rieure au rayon de la broche de guidage.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"484\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Recommendations-for-the-Layout-of-Guide-Pins-and-Bushings.webp\" alt=\"Recommandations pour la disposition des goupilles de guidage et des douilles\" class=\"wp-image-20108\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Recommendations-for-the-Layout-of-Guide-Pins-and-Bushings.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Recommendations-for-the-Layout-of-Guide-Pins-and-Bushings-300x145.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Recommendations-for-the-Layout-of-Guide-Pins-and-Bushings-768x372.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Recommendations-for-the-Layout-of-Guide-Pins-and-Bushings-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Recommandations pour la disposition des goupilles de guidage et des douilles<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-acquisition-of-guide-pins-and-bushings\">Acquisition de goupilles de guidage et de bagues<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-purchased-from-external-suppliers\">Achats aupr\u00e8s de fournisseurs externes<\/h3>\n\n\n\n<p>La plupart des fabricants de moules ach\u00e8tent des goupilles de guidage et des douilles en tant que pi\u00e8ces standard. Ils gagnent ainsi du temps, ce qui leur permet de se concentrer sur le traitement des cavit\u00e9s centrales et des inserts, am\u00e9liorant ainsi l'efficacit\u00e9 de la production. Compte tenu de l'\u00e9tendue de l'industrie manufacturi\u00e8re chinoise, la cha\u00eene d'approvisionnement des diff\u00e9rents composants des moules est bien d\u00e9velopp\u00e9e, ce qui rend le traitement externe des tiges de guidage et des bagues abordable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-1024x614.webp\" alt=\"Goupilles de guidage achet\u00e9es \u00e0 l&#039;ext\u00e9rieur\" class=\"wp-image-20105\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-1024x614.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-300x180.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-768x461.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-1536x921.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-2048x1228.webp 2048w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Externally-purchased-guide-pins-18x12.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Dans ce cas, les fabricants doivent juger avec pr\u00e9cision de la qualit\u00e9 des axes de guidage et des bagues, en se concentrant sur certains aspects :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Qualit\u00e9 du produit :<\/strong> La stabilit\u00e9 des dimensions du produit, la finition de la surface et l'utilisation des mat\u00e9riaux refl\u00e8tent la qualit\u00e9 du moule lui-m\u00eame.<\/li>\n\n\n\n<li><strong>Dur\u00e9e de vie :<\/strong> Nombre de cycles de travail ou de pi\u00e8ces produites qu'un moule peut r\u00e9aliser tout en garantissant la qualit\u00e9 du produit.<\/li>\n\n\n\n<li><strong>Facilit\u00e9 d'utilisation et d'entretien :<\/strong> Commodit\u00e9 d'utilisation, temps de production auxiliaire minimal et facilit\u00e9 d'entretien.<\/li>\n\n\n\n<li><strong>Co\u00fbts de maintenance et cyclicit\u00e9 :<\/strong> Le co\u00fbt et la fr\u00e9quence de l'entretien sont \u00e9galement pris en compte dans l'\u00e9valuation de la qualit\u00e9 des moules.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-produced-in-house-by-mold-component-companies\">Produit en interne par des entreprises de composants de moules<\/h3>\n\n\n\n<p>En fonction de leur forme structurelle, de leur taille et de leurs exigences en mati\u00e8re de mat\u00e9riaux, les gens peuvent s\u00e9lectionner l'acier rond appropri\u00e9 sous forme de flans.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-processing-of-guide-pins\">Traitement des broches de guidage<\/h4>\n\n\n\n<p>Les goupilles de guidage utilisent g\u00e9n\u00e9ralement de l'acier 20, grossi\u00e8rement trait\u00e9 sur un <a href=\"https:\/\/firstmold.com\/fr\/guides\/types-of-lathes\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>tour<\/strong><\/a>L'acier est ensuite trait\u00e9 thermiquement (c\u00e9mentation \u00e0 une profondeur de 0,8-1,2 mm, durcissement \u00e0 58-62HRC) et rectifi\u00e9 ext\u00e9rieurement. Pour am\u00e9liorer encore la pr\u00e9cision dimensionnelle et la rugosit\u00e9 de la surface, effectuez un meulage suppl\u00e9mentaire apr\u00e8s avoir laiss\u00e9 une marge de 0,01-0,015 mm apr\u00e8s le meulage externe.<\/p>\n\n\n\n<p>Si l'on utilise un tour pour serrer et rectifier les broches de guidage, on utilise g\u00e9n\u00e9ralement une pince. Une couche uniforme d'abrasif est appliqu\u00e9e sur la surface rectifi\u00e9e et la broche de guidage est \u00e9quip\u00e9e d'une bague de rectification pour un mouvement de va-et-vient axial manuel. La broche de guidage tourne sur sa circonf\u00e9rence, entra\u00een\u00e9e par la broche, ce qui permet de r\u00e9aliser le meulage. Il est \u00e9galement possible d'utiliser un disque de meulage pour la production de masse.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-processing-of-bushings\">Traitement des bagues<\/h4>\n\n\n\n<p>Apr\u00e8s un tournage grossier, laissant une marge de rectification de 0,3 mm, les douilles subissent un traitement thermique (c\u00e9mentation de 0,8 \u00e0 1,2 mm de profondeur, durcissement \u00e0 58-62 HRC) et une rectification interne et externe. En raison de la haute pr\u00e9cision et de la coaxialit\u00e9 requises pour l'appariement, la rectification interne est effectu\u00e9e en premier, suivie de l'installation d'un mandrin pour la rectification externe. Si la rectification externe n'est pas critique, elle peut \u00eatre omise. Lorsque la rectification interne laisse une marge de 0,01-0,015 mm, il peut \u00eatre n\u00e9cessaire de proc\u00e9der \u00e0 un honage suppl\u00e9mentaire pour plus de pr\u00e9cision.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-customizing-guide-pins-and-bushings\">Personnalisation des goupilles de guidage et des douilles<\/h2>\n\n\n\n<p>Lorsqu'elles commandent des axes de guidage et des bagues sur mesure, les entreprises de moulage doivent tenir compte des \u00e9l\u00e9ments suivants :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-material-selection\">1. S\u00e9lection des mat\u00e9riaux<\/h3>\n\n\n\n<p>Les axes de guidage et les bagues sont g\u00e9n\u00e9ralement fabriqu\u00e9s \u00e0 partir de m\u00e9taux tels que l'acier au carbone, l'acier alli\u00e9 ou l'acier inoxydable. Le choix du mat\u00e9riau doit tenir compte de l'environnement de travail et de la fr\u00e9quence d'utilisation, en privil\u00e9giant les mat\u00e9riaux pr\u00e9sentant une duret\u00e9, une r\u00e9sistance \u00e0 l'usure et une r\u00e9sistance \u00e0 la corrosion \u00e9lev\u00e9es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-dimensional-precision\">2. Pr\u00e9cision dimensionnelle<\/h3>\n\n\n\n<p>Les commandes personnalis\u00e9es doivent respecter strictement la pr\u00e9cision dimensionnelle sp\u00e9cifi\u00e9e dans les dessins. Une grande pr\u00e9cision est essentielle pour \u00e9viter les probl\u00e8mes d'assemblage et d'utilisation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-processing-precision\">3. Pr\u00e9cision de la transformation<\/h3>\n\n\n\n<p>La pr\u00e9cision de l'usinage des broches de guidage et des douilles a une incidence directe sur leur ajustement et leur dur\u00e9e de vie. L'usinage de haute pr\u00e9cision est particuli\u00e8rement important dans des domaines tels que l'\u00e9lectronique et l'optique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-surface-quality\">4. Qualit\u00e9 de la surface<\/h3>\n\n\n\n<p>Une qualit\u00e9 de surface \u00e9lev\u00e9e est n\u00e9cessaire pour assurer la long\u00e9vit\u00e9 et l'efficacit\u00e9 des produits. Les traitements de surface doivent pr\u00e9venir la corrosion et les dommages, afin de maintenir les performances des composants.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-lubrication-method\">5. M\u00e9thode de lubrification<\/h3>\n\n\n\n<p>Des m\u00e9thodes de lubrification appropri\u00e9es am\u00e9liorent la r\u00e9sistance au glissement et \u00e0 l'usure des axes de guidage et des bagues. Des lubrifiants sp\u00e9ciaux pour moules, connus sous le nom de \"lubrifiants sans suintement\", garantissent une durabilit\u00e9 \u00e0 long terme.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-maintenance\">6. L'entretien<\/h3>\n\n\n\n<p>Un entretien, un nettoyage et une lubrification r\u00e9guliers sont essentiels pour maintenir la pr\u00e9cision et les performances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-assembly-of-guide-pins-and-bushings\">Assemblage des goupilles de guidage et des bagues<\/h2>\n\n\n\n<p>Lors de la conception et de l'assemblage, ils doivent se fermer compl\u00e8tement avant que le poin\u00e7on n'entre en contact avec la pi\u00e8ce \u00e0 usiner ou que la plaque de pression n'entre en contact avec la pi\u00e8ce \u00e0 usiner. Veillez \u00e0 ce qu'il y ait un espace de 10 \u00e0 15 mm entre le haut de la broche de guidage et la surface de la base sup\u00e9rieure du moule. Apr\u00e8s l'assemblage, un espace de 2 \u00e0 3 mm doit subsister entre la tige de guidage et la surface inf\u00e9rieure de la base du moule et entre l'extr\u00e9mit\u00e9 sup\u00e9rieure de la douille et la surface sup\u00e9rieure de la base du moule.<\/p>\n\n\n\n<p>Pour les pi\u00e8ces sym\u00e9triques, des diam\u00e8tres ou des positions diff\u00e9rents pour les goupilles de guidage permettent d'\u00e9viter les erreurs de direction lors de l'assemblage. Les pressions lat\u00e9rales importantes n\u00e9cessitent des patins de pouss\u00e9e sur la base du moule pour \u00e9viter que les broches de guidage et les bagues ne supportent des forces lat\u00e9rales. Les bagues doivent \u00eatre munies de trous d'a\u00e9ration pour \u00e9vacuer l'air emprisonn\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p>Ceci conclut la discussion sur les goupilles de guidage et les bagues. FirstMold est une entreprise professionnelle de moulage et d'injection dont le personnel exp\u00e9riment\u00e9 conna\u00eet tous les d\u00e9tails. Si vous souhaitez discuter des connaissances de l'industrie, contactez-nous \u00e0 l'adresse suivante <a>firstmold88@gmail.com<\/a>. Pour les besoins de production de pi\u00e8ces et de fabrication, cliquez sur le lien pour soumettre vos besoins.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Cet article explique ce que sont les goupilles de guidage et les bagues et fournit des conseils d\u00e9taill\u00e9s sur le traitement, la personnalisation et les consid\u00e9rations relatives \u00e0 l'assemblage.<\/p>","protected":false},"author":5,"featured_media":20118,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[47],"tags":[60],"class_list":["post-20099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-injection-mold-component"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guide 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