The injection moulds for transparent parts<\/strong> sont les plus exigeants techniquement : moindre poussi\u00e8re, ligne de soudure ou voile rend la pi\u00e8ce non conforme. Hybster con\u00e7oit des outillages sp\u00e9cialis\u00e9s pour les pi\u00e8ces optiques, lentilles, guides de lumi\u00e8re, bo\u00eetiers cosm\u00e9tiques transparents et \u00e9crans de protection, avec des aciers haute polissabilit\u00e9 (SPI A1 poli miroir), des canaux chauds \u00e0 obturation et une r\u00e9gulation thermique fine.<\/p>\r\n\r\n\r\n\r\n Our expertise covers the main transparent materials (PC, PMMA, SAN, COC, COP<\/strong>) for critical sectors: lighting, automotive, consumer electronics, luxury cosmetics, medical.<\/p>\r\n\r\n\r\n\r\n Une pi\u00e8ce transparente expose tous les d\u00e9fauts internes : bulles, lignes de soudure, voile, micro-rayures, retassures, particules. L\u00e0 o\u00f9 un d\u00e9faut serait invisible sur une pi\u00e8ce opaque, il devient flagrant sur une pi\u00e8ce transparente. Le moule doit donc \u00eatre con\u00e7u sp\u00e9cifiquement pour les \u00e9viter :<\/p>\r\n\r\n\r\n\r\n To understand the process for injecting transparent materials, please consult our dedicated article: Fabrication of transparent polycarbonate parts for lighting<\/a>.<\/p>\r\n\r\n\r\n\r\n PMMA (Plexiglas, Altuglas) offers the purest transparency (transmission 92%), excellent UV and scratch resistance. Ideal for optical applications, signage and decorative screens. Less impact-resistant than PC. See our PMMA datasheet<\/a>.<\/p>\r\n\r\n\r\n\r\n PC offers transparency (88%) and exceptional impact resistance. Widely used in lighting (LEDs, spotlights), electronic enclosures and protective equipment (visors, helmets). More susceptible to scratches than PMMA. See our Subject sheet PC<\/a>.<\/p>\r\n\r\n\r\n\r\n Acrylic (SAN) is a cost-effective alternative to PMMA for decorative or consumer applications. Slightly lower transparency, good rigidity, attractive price.<\/p>\r\n\r\n\r\n\r\n High-performance materials for demanding medical and optical applications: excellent clarity, low birefringence, dimensional stability, chemical resistance. More expensive but essential for precision optics (intraocular lenses, medical vials).<\/p>\r\n\r\n\r\n\r\n For optical components (lenses, light guides), we work with your optical designer to ensure that the mould accurately replicates the optical surfaces (spherical, aspheric, freeform). Typical form tolerances: \u00b1 0.01 mm on optical areas.<\/p>\r\n\r\n\r\n\r\n Advanced rheological analysis to anticipate and position weld lines outside visible zones, precise sizing of runner channels, verification of venting in each critical zone. Systematic Moldflow simulation.<\/p>\r\n\r\n\r\n\r\n Moulds for transparent parts are entrusted to specialist mould-makers (France, Germany, Switzerland, Italy) who are proficient in SPI A1 polishing. The lead time includes several stages of progressive polishing, with systematic checks between each stage.<\/p>\r\n\r\n\r\n\r\n The mould trial is carried out under controlled cleanliness conditions with rigorous drying of the material (PC is highly sensitive to moisture). The development phase is longer (3 to 7 days) to optimise all parameters and ensure a very low scrap rate.<\/p>\r\n\r\n\r\n\r\n <\/p>\r\n\r\n\r\n <\/p>","protected":false},"excerpt":{"rendered":" Moules d’injection pour pi\u00e8ces transparentes en PC, PMMA, SAN ou COC\/COP. Hybster con\u00e7oit des outillages haute pr\u00e9cision avec polissage SPI A1, canaux chauds valve gate et conformal cooling pour optique, \u00e9clairage, m\u00e9dical, cosm\u00e9tique de luxe.<\/p>","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[468],"tags":[],"class_list":["post-12242","post","type-post","status-publish","format-standard","hentry","category-savoir-faire"],"acf":{"sf_type":"moule","sf_focus_keyword":"moule pi\u00e8ces transparentes","sf_meta_title":"Moule pour pi\u00e8ces transparentes | Hybster","sf_meta_description":"Moules pour pi\u00e8ces transparentes en PC, PMMA, COC\/COP : polissage SPI A1 (miroir), canaux chauds valve gate, conformal cooling. Optique, \u00e9clairage, m\u00e9dical.","sf_volume_min":"","sf_volume_max":"","sf_delai_typique":"10 \u00e0 24 semaines","sf_faq":[{"question":"Pourquoi un moule transparent co\u00fbte-t-il plus cher ?","answer":"Le surco\u00fbt (30-60% vs moule standard) vient de plusieurs facteurs : aciers ESR plus chers, polissage SPI A1 n\u00e9cessitant plusieurs \u00e9tapes, canaux chauds valve gate quasi-obligatoires, mise au point plus longue, contraintes de propret\u00e9. Tous ces \u00e9l\u00e9ments sont indispensables pour obtenir une pi\u00e8ce transparente sans d\u00e9faut."},{"question":"Comment \u00e9viter les bulles dans une pi\u00e8ce transparente ?","answer":"Les bulles proviennent de 3 sources principales : (1) humidit\u00e9 de la mati\u00e8re (s\u00e9chage critique avant injection, surtout PC), (2) \u00e9ventation insuffisante (\u00e0 dimensionner pr\u00e9cis\u00e9ment dans le moule), (3) param\u00e8tres mal r\u00e9gl\u00e9s (vitesse d'injection trop rapide). Un moule bien con\u00e7u et une mise au point soign\u00e9e \u00e9liminent les bulles."},{"question":"PC ou PMMA : quelle mati\u00e8re choisir pour une pi\u00e8ce transparente ?","answer":"PMMA : transparence sup\u00e9rieure (92%), excellent contre les UV et rayures, mais cassant. PC : transparence (88%), incassable, plus sensible aux rayures et UV (jaunissement possible). Choisir PMMA pour des pi\u00e8ces statiques et expos\u00e9es (signal\u00e9tique, optique), PC pour des pi\u00e8ces soumises aux chocs (\u00e9clairage automobile, \u00e9crans de protection)."},{"question":"Comment cacher les lignes de soudure ?","answer":"Solutions par ordre d'efficacit\u00e9 : (1) d\u00e9placer la ligne de soudure hors zone visible par simulation rh\u00e9ologique et repositionnement des PI, (2) utiliser injection s\u00e9quentielle (canaux chauds avec valve gate ouvrant \u00e0 des instants diff\u00e9rents), (3) augmenter la temp\u00e9rature mati\u00e8re et moule pour favoriser la fusion \u00e0 la ligne. Une simulation Moldflow est indispensable d\u00e8s la conception."},{"question":"Peut-on combiner transparence et bi-mati\u00e8re ?","answer":"Oui, fr\u00e9quent pour des produits cosm\u00e9tiques ou \u00e9clairage : base rigide transparente + zone souple TPE color\u00e9e. Voyez nos solutions injection bi-mati\u00e8re 2K<\/a> pour comprendre les contraintes et combinaisons possibles."}]},"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\tPourquoi les pi\u00e8ces transparentes n\u00e9cessitent un moule sp\u00e9cifique ?<\/h2>\r\n\r\n\r\n\r\n
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Injectable transparent materials and their specificities<\/h2>\r\n\r\n\r\n\r\n
PMMA (Polymethyl methacrylate)<\/h3>\r\n\r\n\r\n\r\n
PC (Polycarbonate)<\/h3>\r\n\r\n\r\n\r\n
SAN (Styrene Acrylonitrile)<\/h3>\r\n\r\n\r\n\r\n
COC \/ COP (Cyclo-olefins)<\/h3>\r\n\r\n\r\n\r\n
Technical specifications of the mould<\/h2>\r\n\r\n\r\n\r\n
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Common applications<\/h2>\r\n\r\n\r\n\r\n
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Our method<\/h2>\r\n\r\n\r\n\r\n
1. Optical and functional study<\/h3>\r\n\r\n\r\n\r\n
2. DFM-specific transparency<\/h3>\r\n\r\n\r\n\r\n
3. Fabrication by expert moulders<\/h3>\r\n\r\n\r\n\r\n
4. Development in clean press<\/h3>\r\n\r\n\r\n\r\n
Indicative costs and timescales<\/h2>\r\n\r\n\r\n\r\n
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To go further<\/h2>\r\n\r\n\r\n\r\n
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