Standard No.:	GB/T 31398-2015
English Name:	Roll turning lathes―Specifications
Chinese Name:	轧辊车床 技术条件
Chinese Classification:	J53    Lathe
Professional Classification:	GB    National Standard
ICS Classification:	25.080.10 25.080.10    Lathes 25.080.10
Source Content Issued by:	AQSIQ; SAC
Issued on:	2015-05-15
Implemented on:	2015-9-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	5500 words
Translation Price(USD):	130.0
Delivery:	via email in 1 business day

GB/T 31398-2015 Roll turning lathes - Specifications 1 Scope This standard specifies the requirements for the manufacture and acceptance of roll turning lathes. This standard is applicable to general-purpose roll turning lathes with a maximum workpiece diameter of 400mm to 2,000mm and a maximum workpiece length of up to 10,000mm. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 5226.1 Electrical safety of machinery - Electrical equipment of machines - Part 1: General requirements GB/T 6576-2002 Machine tools - Lubrication systems GB/T 9061-2006 General specifications for metal-cutting machine tools GB 15760 Metal-cutting machine tools - General safeguarding specification GB/T 16769-2008 Metal-cutting machine tools - Measurement method of sound pressure level GB/T 23570-2009 Welding parts for metal cutting machines - General specifications GB/T 23572-2009 Hydraulic system general specifications for metal-cutting machine tools GB/T 23575-2009 Metal cutting machine tools - Check and evaluation for taper surface by miniating GB/T 25373-2010 Metal-cutting machine tools - General specifications of assembling GB/T 25374-2010 Metal-cutting machine tools - Measuring method of cleanliness GB/T 25375-2010 Metal-cutting machine tools - Check and evaluation for combine surface by miniating GB/T 25376-2010 Metal-cutting machine tools - General specifications of machining parts JB/T 8601.2-2013 Roll-turning lathes - Part 2: Testing of the accuracy 3 General requirements When a roll turning lathe is accepted in accordance with this standard, the remaining items specified in GB/T 9061-2006, GB/T 23570-2009, GB/T 25373-2010 and GB/T 25376-2010 that are not specifically defined in this standard shall also be inspected. 4 Accessories and tools 4.1 The following accessories and tools shall be supplied with the roll turning lathe: a) One set of special tools; b) One set of foundation bolts, nuts, washers and adjusting shims. 4.2 Special accessories for extending the service performance of the roll turning lathe shall be supplied by agreement in accordance with the user’s requirements. 4.3 The standard accessories and tools of the roll turning lathe shall ensure the interchangeability at the connecting interfaces and the intended service performance. 5 Safety and hygiene 5.1 The safety of the electrical system of the roll turning lathe shall comply with the provisions of GB 5226.1. 5.2 The safety of the hydraulic system of the roll turning lathe shall comply with the provisions of GB/T 23572-2009. 5.3 The safety of the lubrication system of the roll turning lathe shall comply with the provisions of GB/T 6576-2002.

Contents Foreword I 1 Scope 2 Normative references 3 General requirements 4 Accessories and tools 5 Safety and hygiene 6 Machining and assembly quality 7 No-load running tests of the roll turning lathe 8 Load tests of the roll turning lathe 9 Accuracy inspection of the roll turning lathe