{"id":6531,"date":"2013-06-04T09:00:48","date_gmt":"2013-06-04T14:00:48","guid":{"rendered":"https:\/\/www.insta-pro.com\/fr\/2013\/06\/04\/how-can-i-tell-when-my-parts-are-worn-out\/"},"modified":"2019-07-22T06:22:01","modified_gmt":"2019-07-22T11:22:01","slug":"how-can-i-tell-when-my-parts-are-worn-out","status":"publish","type":"post","link":"https:\/\/instapro.spinuhost.com\/fr\/blog\/ingenierie-maintenance\/how-can-i-tell-when-my-parts-are-worn-out\/","title":{"rendered":"Comment savoir quand mes pi\u00e8ces sont us\u00e9es\u00a0?"},"content":{"rendered":"

L\u2019une des questions les plus courantes de la part des clients, lorsqu\u2019ils se trouvent confront\u00e9s \u00e0 des probl\u00e8mes avec leurs extrudeuses<\/a>, concerne la dur\u00e9e de vie d\u2019une pi\u00e8ce. Une simple inspection des vis de la chambre d\u2019alimentation et du dispositif d\u2019alimentation de votre extrudeuse<\/a> peut vous indiquer s\u2019il est n\u00e9cessaire de remplacer des pi\u00e8ces. Il est pr\u00e9conis\u00e9 de d\u00e9monter enti\u00e8rement l\u2019extrudeuse<\/a> une fois par mois et de contr\u00f4ler l\u2019usure.<\/p>\n

La chambre d\u2019alimentation de l\u2019extrudeuse<\/a> est souvent n\u00e9glig\u00e9e, parce qu\u2019il y a moins de chaleur et de pression g\u00e9n\u00e9r\u00e9es dans cette zone. Le produit en cours d\u2019extrusion est plus abrasif en ce point : c\u2019est souvent \u00e0 cet endroit que l\u2019on remarque le plus d\u2019usure. Une intensit\u00e9 \u00e9lectrique instable et des variations brusques de fonctionnement de l\u2019extrudeuse <\/a>sont g\u00e9n\u00e9ralement le signe de pi\u00e8ces us\u00e9es dans la partie alimentation. La rotation des vis d\u2019alimentation permet d\u2019augmenter consid\u00e9rablement la dur\u00e9e de vie de ces pi\u00e8ces.<\/p>\n

Voici des conseils indiquant ce qu\u2019il faut rechercher et la mani\u00e8re de r\u00e9soudre les probl\u00e8mes :<\/p>\n

1)      <\/b>Chambre d\u2019alimentation et chambres interm\u00e9diaires de compression : <\/b>Dans le cas de rainures \u00e9rod\u00e9es \u00e0 l\u2019int\u00e9rieur des chambres, une chambre peut \u00eatre remise en \u00e9tat en rechargeant le m\u00e9tal par soudure avec une \u00e9lectrode d\u2019acier doux, jusqu\u2019\u00e0 ce que la profondeur des rainures redevienne celle d\u2019origine (ces dimensions se trouvent dans le manuel de l\u2019utilisateur). On recommande de ne restaurer les chambres qu\u2019une fois ou deux. Si des piq\u00fbres de corrosion sont clairement visibles sur la pi\u00e8ce d\u2019origine, remplacez-la.<\/p>\n

2)      <\/b>Vis sans fin<\/a> :<\/b> Les vis pr\u00e9sentant un filet fortement arrondi ou ac\u00e9r\u00e9 devraient \u00eatre remplac\u00e9es. Ne restaurez jamais une vis sans fin. Une fissure sur la vis est \u00e9galement un signe qu\u2019il est temps de la changer.<\/p>\n

3)      <\/b>Manchons d\u2019usure : <\/b>Une rainure visible se forme dans les manchons d\u2019usure au cours du temps. Cela montre l\u2019usure jusqu\u2019\u00e0 la moiti\u00e9 de la surface du manchon, la surface us\u00e9e \u00e9tant visiblement plus fine que la surface non us\u00e9e. Les manchons d\u2019usure peuvent \u00eatre retourn\u00e9s une fois avant remplacement, en desserrant la vis d\u2019arr\u00eat dans la chambre de compression et en utilisant un long poin\u00e7on pour extraire le manchon d\u2019usure. Il est retourn\u00e9 de fa\u00e7on \u00e0 intervertir ses extr\u00e9mit\u00e9s, puis replac\u00e9 dans la chambre.<\/p>\n

4)      <\/b>Anneaux de restriction :<\/b> L\u2019usure des anneaux de restriction se remarque lorsque les bords externes s\u2019arrondissent au lieu d\u2019\u00eatre plats, et que les rainures \u00e0 la surface de l\u2019anneau de restriction s\u2019\u00e9rodent. Par ailleurs, une diminution de 1\/8e de pouce (env. 3 mm) du diam\u00e8tre ext\u00e9rieur peut montrer qu\u2019il est temps de le remplacer. Un remplacement doit \u00eatre effectu\u00e9 en cas de pr\u00e9sence de fissures.<\/p>\n

5)      <\/b>Obus :<\/b> Les obus montrant une extr\u00e9mit\u00e9 conique pointue ou un rebord ext\u00e9rieur arrondi doivent \u00eatre remplac\u00e9s.<\/p>\n

6)      <\/b>C\u00f4nes de nez : <\/b>Les c\u00f4nes de nez devraient \u00eatre remplac\u00e9s si la surface interne pr\u00e9sente une partie conique arrondie ou un important rainurage. Un contr\u00f4le mensuel peut \u00e9viter une immobilisation co\u00fbteuse, et aussi faire r\u00e9aliser des \u00e9conomies sur le co\u00fbt des pi\u00e8ces. Si certaines pi\u00e8ces continuent \u00e0 \u00eatre utilis\u00e9es au-del\u00e0 de leur dur\u00e9e de vie normale, elles peuvent provoquer une usure pr\u00e9matur\u00e9e d\u2019autres pi\u00e8ces.<\/p>\n

Vous avez encore des questions ? Notre directeur du service client et des pi\u00e8ces d\u00e9tach\u00e9es<\/a>, Jim Little (jlittle@insta-pro.com<\/a>), est \u00e0 votre disposition pour y r\u00e9pondre !<\/p>\n","protected":false},"excerpt":{"rendered":"

L\u2019une des questions les plus courantes de la part des clients, lorsqu\u2019ils se trouvent confront\u00e9s \u00e0 des probl\u00e8mes avec leurs extrudeuses, concerne la dur\u00e9e de vie d\u2019une pi\u00e8ce. Une simple inspection des vis de la chambre d\u2019alimentation et du dispositif d\u2019alimentation de votre extrudeuse peut vous indiquer s\u2019il est n\u00e9cessaire de remplacer des pi\u00e8ces. Il […]<\/p>\n","protected":false},"author":7,"featured_media":11011,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7177],"tags":[620,578,619,595],"class_list":["post-6531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ingenierie-maintenance","tag-durabilite-des-pieces-dusure-pour-lextrusion-fr","tag-equipement-durable-et-fiable-fr","tag-pieces-dusure-pour-extrudeuse","tag-assistance-a-la-clientele"],"acf":[],"yoast_head":"\nComment savoir quand mes pi\u00e8ces sont us\u00e9es\u00a0? | Insta-Pro Intl<\/title>\n<meta name=\"description\" content=\"L\u2019une des questions les plus courantes de la part des clients chez Insta-Pro International, lorsqu\u2019ils se trouvent confront\u00e9s \u00e0 des probl\u00e8mes avec leurs extrudeuses, concerne la dur\u00e9e de vie d\u2019une pi\u00e8ce.\" \/>\n<meta name=\"robots\" content=\"index, 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