Testing of welded joints of thermoplastics semi-finished products - Part 6: Low temperature tensile test

This standard specifies the dimensions, the method of sampling and the preparation of the test specimens, also the conditions for performing the low temperature tensile test perpendicular to the weld in order to determine the low temperature tensile welding factor.  A low temperature tensile test may be used in conjunction with other tests (e.g. bend, tensile creep, macro, ...) to assess the performance of welded assemblies, made from thermoplastics materials.  The low temperature tensile welding factor and the appearance of the fracture surface provide a guide regarding the ductility of the joint and the quality of the work.

Prüfen von Schweißverbindungen aus thermoplastischen Kunststoffen - Teil 6: Zugversuch bei tiefen Temperaturen

Diese Norm legt Maße, Probennahmeverfahren und Vorbereitung der Proben sowie die Durchführungsbestimmungen für den Zugversuch bei tiefen Temperaturen rechtwinklig zur Schweißnaht fest, um den Zug-Schweißfaktor bei tiefen Temperaturen zu bestimmen. Ein Zugversuch bei tiefen Temperaturen darf in Verbindung mit anderen Prüfungen (z.B. Biegeversuch, Zeitstand-Zugversuch, makroskopische Prüfung usw.) angewendet werden, um das Betriebsverhalten von Schweißverbindungen aus thermoplastischen Kunststoffen zu beurteilen.

Essais des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 6: Essai de traction à basse température

La présente norme spécifie les dimensions, la méthode de prélèvement et de préparation des éprouvettes, ainsi que les conditions d'exécution de l'essai de traction à basse température effectué perpendiculairement à la soudure, afin de déterminer le facteur de soudage en traction à basse température. Un essai de traction à basse température peut être effectué en combinaison avec d'autres   examens ou essais (par exemple essai de pliage, essai de fluage en traction, examen macrographique, etc.) afin d'évaluer les performances des assemblages soudés en thermoplastiques.

Preskus zvarjenih spojev plastomernih polizdelkov - 3. del: Trgalni preskus pri nizki temperaturi

General Information

Status
Published
Publication Date
18-Jan-2000
Withdrawal Date
30-Jul-2000
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
26-Aug-2023
Completion Date
14-Apr-2025

Relations

EN 12814-6:2000 - Overview

EN 12814-6:2000 (CEN) defines the procedure for the low temperature tensile test of welded joints in thermoplastic semi-finished products. The standard specifies how to select, dimension, sample and prepare test specimens and the general conditions for carrying out a tensile test perpendicular to the weld. The objective is to determine the low temperature tensile welding factor and to assess joint ductility and work quality using the fracture surface appearance.

Key topics and requirements

  • Scope and purpose - Test method focused on welded joints of thermoplastic semi-finished products under low-temperature tensile loading.
  • Specimen selection and dimensions - Rules for sampling from welded assemblies and preparing specimens representative of the welded area (the standard specifies required dimensions and geometry).
  • Test orientation - Tensile test performed perpendicular to the weld to evaluate strength and ductility across the fusion line.
  • Test conditions - Defined low-temperature environment and tensile conditions are required (see standard text for specific conditions).
  • Results and interpretation - Determination of a low temperature tensile welding factor; fracture surface appearance is used to judge ductility and weld quality.
  • Complementary testing - The low temperature tensile test is intended to be used alongside other methods (for example bend tests, tensile creep, macro-examination) to form a full assessment of welded assembly performance.

Practical applications

  • Quality control and production inspection - Verify that welded joints meet low-temperature performance criteria before product release.
  • Welding procedure and personnel qualification - Support qualification of welding processes and operators by demonstrating joint behavior at low temperatures.
  • Material selection and joint design - Inform decisions about thermoplastic grades and joint geometries where low-temperature performance is critical.
  • Failure analysis and R&D - Use tensile welding factor and fracture morphology to investigate failures or to optimize welding parameters and materials.

Who should use this standard

  • Welding engineers and fabricators working with thermoplastics
  • Materials and polymer engineers responsible for joint integrity
  • Quality assurance/quality control (QA/QC) laboratories
  • Certification bodies and testing laboratories assessing welded assemblies

Related standards

  • Other parts of the EN 12814 series covering additional test methods for welded thermoplastics assemblies
  • Relevant ISO and national standards for plastics testing and welding qualification (refer to official standards lists for exact references)

Keywords: EN 12814-6, low temperature tensile test, welded joints, thermoplastics, welding factor, semi-finished products, CEN standard, weld quality, tensile testing.

Standard
EN 12814-6:2000
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Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskus zvarjenih spojev plastomernih polizdelkov - 3. del: Trgalni preskus pri nizki temperaturiPrüfen von Schweißverbindungen aus thermoplastischen Kunststoffen - Teil 6: Zugversuch bei tiefen TemperaturenEssais des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 6: Essai de traction a basse températureTesting of welded joints of thermoplastics semi-finished product
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Frequently Asked Questions

EN 12814-6:2000 is a standard published by the European Committee for Standardization (CEN). Its full title is "Testing of welded joints of thermoplastics semi-finished products - Part 6: Low temperature tensile test". This standard covers: This standard specifies the dimensions, the method of sampling and the preparation of the test specimens, also the conditions for performing the low temperature tensile test perpendicular to the weld in order to determine the low temperature tensile welding factor. A low temperature tensile test may be used in conjunction with other tests (e.g. bend, tensile creep, macro, ...) to assess the performance of welded assemblies, made from thermoplastics materials. The low temperature tensile welding factor and the appearance of the fracture surface provide a guide regarding the ductility of the joint and the quality of the work.

This standard specifies the dimensions, the method of sampling and the preparation of the test specimens, also the conditions for performing the low temperature tensile test perpendicular to the weld in order to determine the low temperature tensile welding factor. A low temperature tensile test may be used in conjunction with other tests (e.g. bend, tensile creep, macro, ...) to assess the performance of welded assemblies, made from thermoplastics materials. The low temperature tensile welding factor and the appearance of the fracture surface provide a guide regarding the ductility of the joint and the quality of the work.

EN 12814-6:2000 is classified under the following ICS (International Classification for Standards) categories: 25.160.40 - Welded joints and welds. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 12814-6:2000 has the following relationships with other standards: It is inter standard links to prEN 12814-6; is excused to EN 12814-1:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN 12814-6:2000 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

The standard EN 12814-6:2000 addresses the testing of welded joints of thermoplastics semi-finished products, with a specific focus on the low temperature tensile test. Its scope is clearly defined, specifying not only the dimensions and methods for sampling test specimens but also outlining the required conditions for conducting the low temperature tensile test. This structured approach ensures consistency and reliability in testing, which is essential for assessing the performance characteristics of welded assemblies made from thermoplastics. One of the key strengths of this standard is its comprehensive nature. By detailing the parameters required for the low temperature tensile test, it guides users in accurately determining the low temperature tensile welding factor. This factor serves as a crucial metric for evaluating the integrity and performance of welds under low temperature conditions. Moreover, its applicability in conjunction with other tests, such as bend and tensile creep tests, enhances its usefulness, allowing for a thorough assessment of the welded joints. The relevance of EN 12814-6:2000 is particularly notable in industries that rely on thermoplastic materials for critical applications, such as automotive, aerospace, and construction. The ability to determine the ductility of the joint and the quality of the weld through the evaluation of the fracture surface enriches the overall understanding of weld performance. As industries increasingly demand rigorous testing protocols, this standard provides a validated framework for ensuring the robustness and reliability of thermoplastic welds. In summary, EN 12814-6:2000 stands out as a vital standard for professionals engaged in the field of thermoplastics. Its detailed specifications on test specimen preparation, testing conditions, and evaluation criteria not only facilitate accurate assessments but also promote best practices within the industry, ultimately leading to higher quality welded products.

표준 문서 SIST EN 12814-6:2000에 대한 리뷰는 다음과 같습니다. 이 표준은 열가소성 반제품의 용접 접합부 test에 관한 것과 관련하여, 저온 인장 시험의 방법과 기준을 명확히 규정하고 있습니다. 특히, 저온 인장 시험의 수행 조건과 더불어 시험 시편의 준비 및 샘플링 방법에 대한 세부 사항을 포함하고 있어, 테스트의 일관성과 신뢰성을 보장합니다. EN 12814-6:2000 표준의 주요 강점 중 하나는 저온 인장 테스트를 통해 용접의 강도를 정량화할 수 있다는 점입니다. 이 시험은 저온 인장 용접 계수를 결정하는 데 필수적이며, 이는 열가소성 재료로 제조된 용접 조립체의 성능을 평가하는 데 중요한 역할을 합니다. 아울러, 시험 결과에서의 파단면 외관은 조인트의 연성과 작업 품질에 대한 지침을 제공합니다. 또한, 이 표준은 저온 인장 시험이 다른 다양한 테스트(예: 굽힘, 인장 크리프, 매크로 등)와 결합하여 사용될 수 있다는 점에서 더욱 유용성을 높이고 있습니다. 이는 복합적인 평가를 가능하게 하여 최종 제품의 내구성과 신뢰성을 증대시킵니다. 따라서 EN 12814-6:2000은 열가소성 용접 기술 분야에서 뛰어난 관련성을 지니고 있으며, 용접 품질을 보증하는 중요 기준으로 기능합니다. 이 표준은 특히 제조업체와 검사 기관 모두에게 유익하며, 품질 관리 및 개선에 지속적으로 기여할 수 있는 기반을 제공합니다.

Die Norm EN 12814-6:2000 ist ein wesentlicher Bestandteil der Qualitätssicherung bei der Prüfung von Schweißverbindungen von thermoplastischen Halbzeugen. Die Norm legt die Dimensionen, die Probenvorbereitung sowie die Verfahren zur Entnahme der Prüfstücke fest, die für den Durchführung des Niedertemperatur-Zugtestes erforderlich sind. Dieser Test ist entscheidend, um den Niedertemperatur-Zugschweißfaktor zu bestimmen, welcher direkt mit der Belastbarkeit und der Leistung von geschweißten Baugruppen aus thermoplastischen Materialien in Verbindung steht. Ein herausragendes Merkmal dieser Norm ist die Fähigkeit, in Verbindung mit anderen Prüfmethoden wie Biege-, Zugkriech- und Makroprüfungen eingesetzt zu werden. Dies ermöglicht eine umfassende Bewertung der Eigenschaften von Schweißverbindungen, die unter verschiedenen Bedingungen geprüft werden müssen. Die umfassende Prüfung der Schweißnähte unter Niedertemperaturbedingungen liefert nicht nur Angaben zum Niedertemperatur-Zugschweißfaktor, sondern ermöglicht auch eine Einschätzung der Sprödbrucherscheinungen und der Duktilität der Verbindungen. Die Relevanz der Norm EN 12814-6:2000 ergibt sich aus ihrer spezifischen Ausrichtung auf die Herausforderungen, die in der Verarbeitung und im Einsatz von thermoplastischen Materialien auftreten können, insbesondere in Anwendungen, wo Temperaturänderungen signifikante Auswirkungen auf die Leistungsfähigkeit der Schweißverbindungen haben könnten. Die Norm bietet somit eine solide Grundlage für Hersteller und Qualitätsprüfer, um sicherzustellen, dass die entwickelten und produzierten Produkte den geforderten Standards in Bezug auf Sicherheit und Zuverlässigkeit gerecht werden. Insgesamt lässt sich festhalten, dass die EN 12814-6:2000 eine unverzichtbare Ressource für die Beurteilung nicht nur der mechanischen Leistung, sondern auch der langfristigen Zuverlässigkeit von Schweißverbindungen in thermoplastischen Materialien ist. Sie trägt zur Verbesserung der Produktqualität bei und unterstützt die Marktanforderungen an innovative und zuverlässige Fertigungstechniken.

La norme EN 12814-6:2000, intitulée "Essai des joints soudés de produits semi-finis en thermoplastiques - Partie 6 : Essai de traction à basse température", revêt une importance majeure dans le domaine des matériaux thermoplastiques. Son champ d'application est clairement défini, spécifiant les dimensions, la méthode d'échantillonnage et la préparation des éprouvettes pour les essais de traction à basse température. Les forces de cette norme résident dans sa capacité à standardiser le processus d'évaluation des joints soudés en fournissant des conditions précises pour réaliser ces tests. Le test de traction à basse température est essentiel pour déterminer le facteur de soudage à basse température, qui est une mesure cruciale de la performance des assemblages soudés. En intégrant ce test avec d'autres méthodes d'évaluation, comme l'essai de pliage ou la fluage en traction, la norme permet une évaluation globale de la durabilité et de la fiabilité des assemblages. Un autre point fort de la norme est qu'elle offre des indications précieuses sur la ductilité des joints et la qualité de l'exécution à travers l'analyse de la surface de fracture. Cela aide les ingénieurs et les techniciens à comprendre et à améliorer les processus de soudage, garantissant que les assemblages en thermoplastiques soient non seulement conformes aux exigences de performance, mais également aux standards de sécurité et de fiabilité. Ainsi, la norme EN 12814-6:2000 constitue un outil indispensable pour les professionnels du secteur, facilitant la mise en œuvre de méthodes de test validées qui garantissent la performance et la sécurité des joints soudés en thermoplastiques dans diverses applications. Son actualité et sa pertinence la rendent incontournable pour toute entreprise cherchant à améliorer ses processus de fabrication et à assurer la qualité de ses produits.

SIST EN 12814-6:2000に関するレビューでは、この標準が熱可塑性半製品の溶接ジョイントの試験において特に重要な役割を果たすことを強調しています。この標準は、溶接の直角方向における低温引張試験を実施するための試験片のサイズ、サンプリング方法、準備条件、試験実施条件を明確に規定しています。 まず、この標準の強みとして、低温引張試験の実施に求められる詳細な手順と条件が記載されている点が挙げられます。この試験は、熱可塑性材料から製造された溶接アセンブリの性能評価において不可欠であり、他の試験(例えば、曲げ試験、引張クリープ試験、マクロ試験など)と組み合わせて使用されることにより、より総合的な評価を可能にします。 さらに、低温引張溶接係数や破断面の外観は、ジョイントの延性や作業品質に関する重要な指標を提供します。この情報は、製品の信頼性や安全性を確保するために不可欠であり、業界における溶接部品の設計や評価において、大きな影響を与えるでしょう。 このように、EN 12814-6:2000は、熱可塑性材料の溶接に関する試験方法を標準化することで、製造業界において溶接品質の向上を促進するための重要な基準として非常に関連性があります。適切な評価手法を提供することで、製品のパフォーマンス向上につながり、結果として市場競争力を強化する役割を果たしています。