Produktionsteknik

Kommittébeteckning: SIS/TK 273 (Skärande verktyg)
Källa: ISO
Svarsdatum: den 19 jun 2019
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This part of ISO 26623 specifies dimensions for polygonal taper interfaces with flange contact surface — Polygon-shanks for automatic and manual tool exchange to be applied on machine tools (e. g. turning machines, drilling machines, milling machines and turn/milling centres as well as grinding machines). A range of shank sizes is specified.

These shanks incorporate a grooved flange to enable automatic tool exchange. The clamping can be realized by a circular groove using clamping segments or internal screw threads using centre-bolts.

The torque is transmitted by form lock (polygon).

Ämnesområden: Additiv tillverkning
Kommittébeteckning: SIS/TK 563 (Additiv tillverkning)
Källa: CEN
Svarsdatum: den 27 jun 2019
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This document gives requirements, guidelines and recommendations for using additive manufacturing (AM) in product design.

It is applicable during the design of all types of products, devices, systems, components or parts that are fabricated by any type of AM system. This document helps determine which design considerations can be utilized in a design project or to take advantage of the capabilities of an AM process.

General guidance and identification of issues are supported, but specific design solutions and process-specific or material-specific data are not supported.

The intended audience comprises three types of users:

— designers who are designing products to be fabricated in an AM system and their managers;

— students who are learning mechanical design and computer-aided design;

— developers of AM design guidelines and design guidance systems.

Ämnesområden: Ytrengöring
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
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This part of ISO 8501 specifies a series of preparation grades for steel surfaces after removal/partial removal of water-soluble contaminants, rust, previous paint coatings and other foreign matter by high-pressure water jetting. The various grades are defined by written descriptions together with photographs that are representative examples within the tolerances for each grade as described in words. In addition, this part of ISO 8501 specifies both initial surface conditions and after-cleaning flash rust grades, also defined by written descriptions together with representative photographic examples.

NOTE 1 Examples of foreign matter, other than paint residues, are salt, grime, dirt, mill scale, oil, grease and marine growth, e.g. algae.

This part of ISO 8501 relates the cleanliness of the surface to its visual appearance. In many instances, this is sufficient for the purpose but, for coatings likely to be exposed to severe environments, such as water immersion and continuous condensation conditions, consideration should be given to testing for soluble salts and other invisible contaminants on the visually clean surface by the physical and chemical methods which form the subjects of the various parts of ISO 8502.

The roughness characteristics of the surface should also be considered by reference to ISO 8503, although it must be noted that preparation by high- pressure water jetting does not create a profile or significantly change an existing profile.

Ämnesområden: Ytrengöring; Målning
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
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This part of ISO 8502 describes a method of extracting, for analysis, water soluble contaminants from a surface by use of flexible cells in the form of adhesive patches or sleeves which can be attached to any surface, regardless of its shape (flat or curved) and its orientation (facing in any direction, including downwards).

The method described is suitable for use in the field to determine the presence of water soluble contaminants before painting or a similar treatment.

This part of ISO 8502 does not cover the subsequent analysis of the contaminants that have been dissolved off. Methods of analysis suitable for field use are described in other parts of ISO 8502.

NOTE The extraction method might give a false negative or not take all the water-soluble material off the surface because of: (1) Soluble materials hiding in the crevices or under folds of metal; (2) Soluble materials under corrosion layers, passivation layers produced by corrosion inhibitors, oil, grease, or other non-visible thin films.

Ämnesområden: Ytrengöring; Målning
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
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This part of ISO 8502 describes a field method for the assessment of the surface density of various water-soluble salts on steel surfaces, before and/or after surface preparation, by conductometric determination. The individual surface densities of the salt composition like chlorides, sulphates, sodium, etc, cannot be determined by this method. This method assesses only contaminants that will form an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.

Kommittébeteckning: SIS/TK 261 (Maskinsäkerhet i järn- och metallverk)
Källa: CEN
Svarsdatum: den 9 jul 2019
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This document applies for new steel converter and its associated equipment (hereinafter referred to as converter plant) used in the process of carbon or stainless steel making as defined in 3.1 and illustrated in Annex B.

This document deals with significant hazards, hazardous situations and events relevant to the converter plant. It covers the intended use and foreseeable misuse.

This document specifies the safety requirements to be met during design, transport, setting up/installation, assembly, commissioning, operation, maintenance (as described in Clause 5) and decommissioning/disassembly of the equipment.

NOTE 1 Assembly does not include erection because national regulations, e.g., national civil engineering laws and regulations or occupational health and safety regulations have to be considered.

This document applies to:

Steel converter and its associated equipment (see Annex B, Figure B.1) for the oxygen steelmaking process

— from charging hot metal/liquid steel and scrap;

— via oxygen refining and stirring;

— temperature measurement and sampling equipment;

— up to tapping including slag retaining device;

— cooling systems;

— maintenance devices (e.g., relining device, tap hole repair device, device for cleaning the converter mouth);

— process related interfaces/interactions (e.g., according to design, controls) to

— process media,

— primary and secondary gas cleaning plant,

— material feeding systems and ladle alloying systems,

— transfer cars for steel ladle and slag pot, and

— charging/tapping equipment, e.g., crane, scrap chute, ladles and slag pots.

This document does not cover safety requirements for:

— usage of process media other than oxygen, nitrogen, argon and compressed air;

— primary and secondary gas cleaning plants;

— measuring devices with radioactive sources;

— material feeding systems and ladle alloying systems;

— transfer cars for steel ladle and slag pot;

— charging/tapping and de-slagging equipment, e.g., crane, scrap chutes, ladles and slag pots;

— auxiliary winches and hoists.

NOTE 2 For variations of converter process where other gases and process media, e.g., hydrocarbons, fuels, steam, etc. are used, additional safety measures have to be considered which are not covered in this safety standard.

NOTE 3 In case of revamping, this document can be used as a guideline for the specific parts to be revamped.

Kommittébeteckning: SIS/TK 134 (Svetsteknik)
Källa: CEN
Svarsdatum: den 10 jul 2019
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This document specifies a method for the assessment of the efficacy of a soft soldering flux, known as the wetting balance method. It gives a qualitative assessment of the comparative efficacy of two fluxes (for example, a standard and a test flux), based on their capacity to promote wetting of a metal surface by liquid solder. The method is applicable to all flux types in liquid form classified in ISO 9454-1.

NOTE It is hoped that future developments using improved techniques for obtaining a reproducible range of test surfaces will enable this method for assessing flux efficacy to be quantitative. For this reason, several alternative procedures for preparing the surface of the test piece are included in the present method.

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 25 jul 2019
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This document specifies requirements for the:

— approval of training facilities, testing and maintaining the skills of aluminothermic welders and welding trainers. It applies to those aluminothermic welding processes compliant with the requirements of EN 14730-1. It requires that the system for training and testing of welders be approved by the railway authority;

— approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730-1 and who employ welders in the possession of a valid permit to weld as defined in Clause 4 of this standard;

— acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors approved by the railway authority. It does not cover any previous weld inspections by the welder or others.

This document also applies to aluminothermic welds produced on Vignole railway rail 46 kg/m and above, as contained in EN 13674-1.

Kommittébeteckning: SIS/TK 280 (Information och automation i produktlivscykeln)
Källa: ISO
Svarsdatum: den 7 aug 2019
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This part of the standard defines the basic principles for an assessment concerning the convergence of informatization and industrialization in industrial enterprises. The scope of this part of the standard includes the following:

— Assessment framework definitions;

— Assessment reference model definitions;

— Assessment reference model components.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 10 aug 2019
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This document specifies the method of testing the knowledge and skill of a welder who is required to carry out welds on thermoplastics in new constructions and repair work.

The skill examination of a welder is an essential condition for the assurance of the quality of the welding work.

The application of this document guarantees that the examination is carried out according to a uniform test procedure.

This document applies when the contractor or the authorities responsible for the application require it.

Gas and water utility network industries with alternative qualification programmes are excluded from this document.

This document applies to the following welding processes:

— hot gas welding: round nozzle, high speed nozzle, wedge;

— extrusion welding;

— heated tool welding: butt, saddle, socket, wedge;

— electrofusion welding: socket, saddle;

— solvent welding: socket.

This document applies to the welding of the following products:

— sheet;

— pipe;

— fittings;

— lining membrane.

This document covers the welding of the following groups of materials:

a) for sheets, pipes and fittings:

— group 1: PVC (including all kinds of PVC-U, PVC-C) or ABS;

— group 2: PP (including all kinds of PP);

— group 3: PE (including all kinds of PE);

— group 4: PVDF;

— group 5: ECTFE or PFA or FEP;

b) for lining membranes and flooring:

— group 6: PVC-P;

— group 7: PE (including all kinds of PE);

— group 8: ECB;

— group 9: PP.

c) for pipes and fittings only:

— group 10: PA-U 11 or PA-U 12