Detail of GB/T 10067.37-2024

Introduction of GB/T 10067.37-2024

GB/T 10067.37-2024 Basic specifications for electroheating and electromagnetic processing installations - Part 37: Superconducting direct current induction through-heating installations 1 Scope This document specifies the classification, technical requirements, inspection rules, marking, packaging, transportation and storage, order and supply of superconducting DC induction through-heating installations, and describes the corresponding test methods. This document is applicable to superconducting DC induction through-heating installations (hereinafter referred to as "superconducting through-heating installation(s)") that operate at a working frequency of 3 Hz~25 Hz and heat billets (or workpieces) mainly composed of low-resistivity and non-ferromagnetic metals and alloys as a whole or partially. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 150.4-2011 Pressure vessels - Part 4: Fabrication, inspection and testing, and acceptance GB/T 2900.23 Electrotechnical terminology - Industrial electro-heat installation GB/T 2900.100 Electrotechnical terminology - Superconductivity GB/T 5959.1-2019 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements GB 5959.3-2008 Safety in electroheat installations - Part 3: Particular requirements for induction and conduction heating and induction melting installations GB/T 1066.1-2019 Test methods for electroheating and electromagnetic processing installations - Part 1: General GB/T 10066.32-2021 Test methods for electroheating and electromagnetic processing installations - Part 32: Induction through-heating installations GB/T 10067.1-2019 Basic specifications for electroheating and electromagnetic processing installations - Part 1: General GB/T 10067.3-2015 Basic specifications for electroheat installations - Part 3: Induction electroheat installations GB/T 12604.6 Non-destructive testing - Terminology - Eddy current testing GB/T 16895.2 Low-voltage electrical installations - Part 4-42: Protection for safety - Protection against thermal effects GB/T 18442.4-2019 Static vacuum insulated cryogenic pressure vessels - Part 4: Fabrication JB/T 9691 Specifications of product types for electroheat installations 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 2900.23, GB/T 2900.100, GB/T 12604.6, GB/T 1066.32-2021 and the following apply. 3.1 ferromagnetic feature of the material with magnetic permeability much greater than 1, and with ability to be magnetized and magnetic-permeable 3.2 non-ferromagnetic feature of the material not being ferromagnetic 3.3 superconducting coil wire turn formed by winding superconducting tape according to a specific structure and process 3.4 superconducting magnet device for generating an external magnetic field, which is composed of ancillary components such as superconducting coil and cryostat 3.5 critical current maximum direct current that can be regarded as flowing almost unimpeded In a superconducting coil 3.6 ferromagnetic core component forming a low-reluctance magnetic flux circuit, which is made of ferromagnetic material 3.7 main magnetic flux circuit closed magnetic flux circuit composed of ferromagnetic core and its heating gap 3.8 superconducting direct current (DC) induction through-heating installation special induction heating device that generates a DC magnetic field through a superconducting magnet and causes relative rotation between the magnetic field and the billet (workpiece) through a mechanical power device Note: This device does not require a semiconductor frequency converter to provide AC power, nor does it have a load resonance circuit composed of inductors and compensation capacitors. 3.9 power circuit for induction heating power supply circuit of all billet rotation motors that provide induction heating power for the billet 3.10 rated heating power maximum power used for induction through-heating of the billet specified in the design of the superconducting through-heating installation and marked on the nameplate 3.11 working frequency frequency of periodic change of magnetic induction strength that the billet actually bears during induction through-heating, which is specified in the design of the superconducting through-heating installation and marked on the nameplate Note: The working frequency is mainly set according to the diameter of the billet. It is adjusted according to the needs of the process and usually expressed in frequency range. 3.12 rotation driver component of accessory electrical and mechanical mechanisms required to drive a billet to rotate in a heating gap 3.13 heating gap air gap reserved in the ferromagnetic core forming the magnetic flux for the billet heating operation 3.14 magnetic induction strength at gap center magnetic induction strength at the geometric center of the ferromagnetic core heating gap under rated working condition 3.15 maximum allowable leakage of magnetic induction strength maximum allowable value of leakage in the magnetic field working area when the installation is operating normally 3.16 operating temperature of superconducting coil temperature at which the superconducting coil can operate stably in the superconducting state for a long time 3.17 rated current of superconducting coil maximum direct current at which a superconducting coil can operate stably for a long time 3.18 temperature homogeneity of billet temperature uniformity of the billet when it is discharged after heating Note: The temperature homogeneity of billet is expressed by the positive and negative range of the temperature difference between the temperature measured at each temperature measuring point of the billet and the temperature at the billet temperature control point, and is expressed by the radial temperature difference and longitudinal temperature difference for cylindrical bar. 3.19 cryostat container providing a low temperature environment for the operation of a superconducting magnet 3.20 takt time time it takes to heat a billet 3.21 working station position occupied by the billet during heating 4 Classification 4.1 Types and specifications The superconducting through-heating installations are classified into single-working-station ones, double-working-station ones and multi-working-station ones according to the number of ferromagnetic core heating gaps which can be heated simultaneously; and can also be classified according to the material of the billet: aluminum, copper, titanium, etc. The product series specifications of superconducting through-heating installation shall be classified according to the diameter and length of the billet. The diameter range of the billet is 150 mm~688 mm (6 inch~27 inch). Length range of billet: 300 mm~1700 mm (12 inch~67 inch). 4.2 Models The product model of superconducting through-heating installation consists of the following parts, which shall comply with JB/T 9691.

Contents of GB/T 10067.37-2024

Contents Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Technical requirements 6 Test method 7 Inspection rules 8 Marking, packaging, transportation and storage 9 Order and supply Annex A (Informative) Some typical temperatures for thermoforming process