{"id":45,"date":"2026-03-16T19:40:15","date_gmt":"2026-03-16T17:40:15","guid":{"rendered":"https:\/\/tst.iipt.com.ua\/tekhnolohiyi\/tech-zalyshkovi-napruhy\/"},"modified":"2026-05-18T18:01:46","modified_gmt":"2026-05-18T15:01:46","slug":"tech-zalyshkovi-napruhy","status":"publish","type":"page","link":"https:\/\/iipt.com.ua\/en\/tekhnolohiyi\/tech-zalyshkovi-napruhy\/","title":{"rendered":"Residual stress relief"},"content":{"rendered":"<div class=\"iipt-dept-page\">\n<h2>Treatment of metal structures to remove residual stresses<\/h2>\n<div class=\"iipt-dept-gallery\">\n    <img decoding=\"async\" src=\"\/wp-content\/uploads\/departments\/dep4_1.jpg\" alt=\"\u0423\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u0434\u043b\u044f \u0437\u043d\u044f\u0442\u0442\u044f \u0437\u0430\u043b\u0438\u0448\u043a\u043e\u0432\u0438\u0445 \u043d\u0430\u043f\u0440\u0443\u0433\">\n    <img decoding=\"async\" src=\"\/wp-content\/uploads\/departments\/dept25_1.jpg\" alt=\"\u0415\u0413\u0406\u041e \u043e\u0431\u0440\u043e\u0431\u043a\u0430 \u0437\u0432\u0430\u0440\u043d\u043e\u0457 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0456\u0457\">\n    <img decoding=\"async\" src=\"\/wp-content\/uploads\/departments\/dept25_2.jpg\" alt=\"\u0415\u0413\u0406\u041e \u043e\u0431\u0440\u043e\u0431\u043a\u0430 \u0437\u0432\u0430\u0440\u043d\u043e\u0457 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0456\u0457\">\n\n<\/div>\n\n<h3>Technology implements<\/h3>\n<p>Highly effective reduction (by 50\u201370%) of residual stresses in welded and cast metal structures and structural strengthening of the welded joint metal.<\/p>\n\n<h3>The essence of technology<\/h3>\n<p>It consists in treating metal structures with repetitive pressure pulses generated by high-voltage electrical discharges in water.<\/p>\n\n<h3>Advantages of technology<\/h3>\n<ul>\n    <li>Environmental friendliness of the method combined with processing success<\/li>\n    <li>Provides improved structurally sensitive characteristics of metal structures (long-term strength, durability, resistance to stress corrosion cracking)<\/li>\n    <li>Productivity up to 2\u20136 t\/h<\/li>\n    <li>Energy consumption is an order of magnitude lower than with heat treatment<\/li>\n    <li>The metal does not weaken<\/li>\n    <li>The fatigue limit of welded joints increases with 30%<\/li>\n<\/ul>\n\n<h3>Technology efficiency<\/h3>\n<ul>\n    <li>Possibility of reducing residual stresses in welded structures and parts made of metals with different expansion coefficients<\/li>\n    <li>Scale formation is eliminated; mechanical cleaning is not required, preventing metal losses<\/li>\n    <li>Combined use with EG casting cleaning technology allows combining cleaning and stress relief operations in castings<\/li>\n<\/ul>\n\n<h3>Implementation<\/h3>\n<p>At enterprises in Ukraine and the CIS countries.<\/p>\n\n<p><strong>Contact:<\/strong> <a href=\"tel:+380512558252\">+38 (0512) 55-82-52<\/a><\/p>\n<p><a href=\"\/en\/tekhnolohiyi\/\">\u2190 Back to list of technologies<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u041e\u0431\u0440\u043e\u0431\u043a\u0430 \u043c\u0435\u0442\u0430\u043b\u0435\u0432\u0438\u0445 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0456\u0439 \u0434\u043b\u044f \u0437\u043d\u044f\u0442\u0442\u044f \u0437\u0430\u043b\u0438\u0448\u043a\u043e\u0432\u0438\u0445 \u043d\u0430\u043f\u0440\u0443\u0433 \u0422\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0456\u044f \u0440\u0435\u0430\u043b\u0456\u0437\u0443\u0454 \u0412\u0438\u0441\u043e\u043a\u043e\u0435\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u0435 \u0437\u043d\u0438\u0436\u0435\u043d\u043d\u044f (\u043d\u0430 50\u201370%) \u0437\u0430\u043b\u0438\u0448\u043a\u043e\u0432\u0438\u0445 \u043d\u0430\u043f\u0440\u0443\u0436\u0435\u043d\u044c \u0443 \u0437\u0432\u0430\u0440\u0435\u043d\u0438\u0445 \u0456 \u043b\u0438\u0442\u0438\u0445 \u043c\u0435\u0442\u0430\u043b\u0435\u0432\u0438\u0445 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":40,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"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":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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