{"id":1905,"date":"2020-04-24T08:11:22","date_gmt":"2020-04-24T08:11:22","guid":{"rendered":"https:\/\/rdosprings.com\/ressort-de-traction\/"},"modified":"2020-11-17T16:31:18","modified_gmt":"2020-11-17T16:31:18","slug":"tension-spring","status":"publish","type":"page","link":"https:\/\/rdosprings.com\/en\/tension-spring\/","title":{"rendered":"Tension Spring"},"content":{"rendered":"

[vc_row full_width=”stretch_row_content_no_spaces” el_class=”a-propos-bloc-head”][vc_column][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=”1867″ img_size=”full” alignment=”center”][vc_column_text el_class=”a-propos-titre titre-ressors a-propos-before”]<\/p>\n

TENSION<\/strong> SPRING<\/h2>\n

[\/vc_column_text][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire savoirfaire”]DEFINITION :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire”] The function of tension springs is to return to their original state after stretching.<\/p>\n

    \n
  • They stretch when they are subjected to a force.<\/li>\n
  • Then return to their original shape after the constraint is removed.<\/li>\n<\/ul>\n

     <\/p>\n

    They are often used as return springs and are for example used for garage doors or systems for the agricultural sector.<\/p>\n

    The ends of these springs are finished with different types of loops:<\/p>\n

      \n
    • “English<\/strong>” loop: centered in the spring axis<\/li>\n
    • “German<\/strong>” loop: single or double, pulling on one side<\/li>\n
    • Extended, lateral<\/strong>, rotating or screwed hook<\/li>\n
    • End caps screwed\/crimped<\/strong> into the spring<\/li>\n<\/ul>\n

      [\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_images_carousel images=”1911,1912,1913,1914,1915″ img_size=”full” autoplay=”yes” hide_pagination_control=”yes”][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_raw_html]JTNDdmlkZW8lMjBjb250cm9scyUyMG11dGVkJTIwd2lkdGglM0QlMjIxMDAlMjUlMjIlM0UlMEElMEElMjAlMjAlMjAlMjAlM0Nzb3VyY2UlMjBzcmMlM0QlMjIlMkZ3cC1jb250ZW50JTJGdXBsb2FkcyUyRjIwMjAlMkYwNiUyRnJlc3NvcnQtdHJhY3Rpb24tZmFicmljYXRpb24ubW92JTIyJTBBJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwdHlwZSUzRCUyMnZpZGVvJTJGbXA0JTIyJTNFJTBBJTNDJTJGdmlkZW8lM0UlMEE=[\/vc_raw_html][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire savoirfaire”]MANUFACTURING PROCESS :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire”]<\/p>\n

        \n
      • Small run (<250 parts), Medium run (<400,000 parts)<\/li>\n
      • Automatic production: wire from 0.1 to 8 mm<\/li>\n
      • RDO Springs produces several billion tension springs annually<\/li>\n<\/ul>\n

        [\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row el_class=”rangee-plan”][vc_column][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire savoirfaire”]CALCULATIONS – PLANS – TECHNICAL QUOTATION :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire”]Springs with standard loops are not complicated to make. However, depending on the load-resistance characteristics, they must be set out in a plan sent to our design office in order to check the dimensions when they are subjected to these same loads.<\/p>\n

        Numerous useful aspects are required to manufacture it, including wire and inner diameters, winding directions, loads to be taken up\/released and the different effective lengths.[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_single_image image=”1916″ img_size=”full” alignment=”center”][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_empty_space height=”70px”][\/vc_column_inner][\/vc_row_inner][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_single_image image=”1917″ img_size=”full” alignment=”center”][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”texte-savoir-faire right”]Once the plan is completed and transmitted, our Design Office will
        \ncheck the dimensions and call you back if necessary.<\/p>\n

        Tests are then conducted to verify that the requested characteristics can be validated on initial samples[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner][vc_column_inner width=”1\/4″][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire titre-center titre-special”]EQUIPMENT :[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/4″][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row el_class=”barre-violette-bottom”][vc_column][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_column_text el_class=”rdo-equipe”] RDO Springs has : <\/strong>[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire equipe”]<\/p>\n

          \n
        • Dozens of very modern manufacturing machines to produce these springs.<\/li>\n
        • Several recent software programs to calculate dimensions and static and dynamic loads on springs,<\/li>\n
        • All the necessary control instruments to check the required dimensions (shadowgraph, measurements taken via imaging, 2D LED, 3D LED, etc.)<\/li>\n<\/ul>\n

          [\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_single_image image=”1909″ img_size=”full” alignment=”center”][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row el_class=”barre-violette-bottom”][vc_column][vc_column_text el_class=”titre-savoir-faire titre-center savoirfaire”]FINAL TREATMENT OF THE MANUFACTURED SPRING :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire”] Several million combinations are possible depending on the mechanical characteristics required on the dimensions or the resistances.<\/p>\n

          To ensure that a spring meets your requirements over time, heat treatments (ovens) are performed. Chemical treatments can also be performed (tribofinishing or passivation) in order to guarantee these characteristics over time.<\/p>\n

          RDO Springs has two modern production lines for these operations.<\/p>\n

          Subcontracting operations (painting, cataphoresis and chemical treatments) can be performed by a subcontractor located near our manufacturing facility. [\/vc_column_text][vc_empty_space height=”45px”][\/vc_column][\/vc_row][vc_row el_class=”barre-violette-bottom”][vc_column][vc_row_inner][vc_column_inner width=”1\/4″][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire titre-center titre-special”]MATERIALS PROCESSED :[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/4″][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”texte-savoir-faire”]<\/p>\n

            \n
          • Mild stainless steel 1.4301 – Implantable stainless steel 1.4441<\/li>\n
          • Inconel 600, 625, 718, 750 \u2022 Monel, Nimonic, Uranus, Titanium, etc.<\/li>\n
          • Phosphor bronze, beryllium, copper, brass<\/li>\n
          • Galvanized SM, galvanized SH, Bezinal\u00a9 SM pre-coated steel,
            \nBezinal\u00a9 SH<\/li>\n<\/ul>\n

            [\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”texte-savoir-faire”]<\/p>\n

              \n
            • Square cross section, rectangular cross section<\/li>\n
            • SM, SH, DH, etc. spring steel<\/li>\n
            • Oteva\u00a9, Stato\u00a9 and becrosi\u00a9 Chrome silicon<\/li>\n
            • Stainless steel 1.4310, 1.4310 HS, 1.4401, 1.4568, 1.4462<\/li>\n<\/ul>\n

              [\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=”50px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner][vc_column_inner width=”2\/3″][vc_column_text el_class=”titre-savoir-faire titre-center savoirfaire”]OUR RECOMMENDATIONS :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire conseils”]The manufacture of tension springs is based on several international standards that define tolerances and the standard manufacturing process.<\/p>\n

              RDO Springs is certified ISO 9001 (Quality) and EN 9100 (Quality ++: Aerospace and Defense sectors) proving its considerable expertise in this field.<\/strong><\/p>\n

              There are no so-called “standard” springs. Each spring is specific and requires an appropriate approach so we can meet your requirements[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/3″][vc_single_image image=”1861″ img_size=”full” alignment=”center”][vc_column_text el_class=”ISO”]ISO 9001
              \nEN 9100[\/vc_column_text][vc_btn title=” Our certifications ” link=”url:https%3A%2F%2Frdosprings.com%2Fen%2Fcertifications%2F|title:Our%20Certifications||” el_class=”iso-btn”][vc_empty_space height=”40px”][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content_no_spaces” el_class=”coordonnees-home” css=”.vc_custom_1586160041817{background-image: url(https:\/\/rdosprings.com\/wp-content\/uploads\/2020\/04\/fond-coordonn\u00e9es.png?id=533) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}”][vc_column][vc_row_inner][vc_column_inner width=”1\/2″][vc_single_image image=”1770″ img_size=”full” alignment=”center”][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text el_class=”texte-coordonnes1″]RDO Springs
              \n10 RUE BENJAMIN DELESSERT
              \n60510 BRESLES[\/vc_column_text][vc_column_text el_class=”texte-coordonnes2″]contact@rdosprings.com
              \nwww.rdosprings.com[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

              [vc_row full_width=”stretch_row_content_no_spaces” el_class=”a-propos-bloc-head”][vc_column][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=”1867″ img_size=”full” alignment=”center”][vc_column_text el_class=”a-propos-titre titre-ressors a-propos-before”] TENSION SPRING [\/vc_column_text][vc_row_inner el_class=”rangee-vertical”][vc_column_inner width=”1\/2″][vc_column_text el_class=”titre-savoir-faire savoirfaire”]DEFINITION :[\/vc_column_text][vc_column_text el_class=”texte-savoir-faire”] The function of tension springs is to return to their original state after stretching. They stretch when they are subjected to a force. Then return to their original shape after the constraint is removed.   They are<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1905","page","type-page","status-publish","hentry"],"yoast_head":"\nExtension springs | RDO Springs French spring specialist<\/title>\n<meta name=\"description\" content=\"Extension springs stretch when subjected to a force and then return to their original shape after the stress is removed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rdosprings.com\/en\/tension-spring\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Extension springs | RDO Springs French spring specialist\" \/>\n<meta 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