JB/T 13023-2017 English PDF (JBT13023-2017)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click JB/T 13023-2017
Historical versions: JB/T 13023-2017
Preview True-PDF (Reload/Scroll if blank)

JB/T 13023-2017: Technical requirements of nitride carbonize and ozidize multi-treatment(QPQ)
JB/T 13023-2017
JB
MECHANICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 25.200
J 36
Registration number. 57803-2017
Technical requirements of nitride carbonize
and oxidize multi-treatment (QPQ)
ISSUED ON. JANUARY 09, 2017
IMPLEMENTED ON. JULY 01, 2017
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 4 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Equipment requirements ... 7 
4.1 General requirements... 7 
4.2 Preheating furnace ... 7 
4.3 Nitrocarburizing furnace ... 7 
4.4 Oxidation furnace ... 8 
4.5 Control system ... 9 
4.6 Cleaning device ... 9 
4.7 Polishing equipment ... 10 
4.8 Oil tank ... 10 
4.9 Ventilation system ... 10 
4.10 Lifting system ... 11 
5 Process material requirements ... 11 
5.1 Composition of process materials ... 11 
5.2 Process material properties ... 11 
5.3 Use and Maintenance ... 12 
5.4 Packaging, marking ... 12 
6 Process requirements ... 13 
6.1 Process flow ... 13 
6.2 Process specifications ... 13 
6.3 Process requirements ... 13 
7 Quality control and inspection ... 20 
7.1 Quality control ... 20 
7.2 Quality requirements and inspection ... 20 
8 Safety, hygiene and environmental protection requirements ... 22 
Appendix A (Normative) Waste gas collection and treatment device principle
... 23 
A.1 Outdoor part of ventilation system ... 23 
A.2 Absorption tower internal structure ... 24 
Appendix B (Normative) Cyanate chemical analysis method ... 25 
B.1 Reagents ... 25 
B.2 Analytical determination ... 25 
B.3 Preparation of 0.1 mol/L NaOH standard solution ... 26 
Appendix C (Informative) Common typical workpiece salt bath nitrocarburizing
temperature and nitrocarburizing time ... 28 
Appendix D (Informative) Recommended ventilation for different mass of salt
baths ... 29 
Appendix E (Informative) QPQ heat treatment production process record card
... 30 
Technical requirements of nitride carbonize
and oxidize multi-treatment (QPQ)
1 Scope
This standard specifies the terms and definitions, equipment requirements,
process material requirements, process requirements, quality control and
inspection, safety, hygiene and environmental protection requirements of the
nitride carbonize and oxidize multi-treatment (QPQ) technology.
This standard applies to the nitride carbonize and oxidize multi-treatment (QPQ)
of black metal, cast iron and stainless steel.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1. Test method
(scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 443 L-AN full loss system oil
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1. Test method
GB 5959.1 Safety in electroheat installations - Part 1. General requirements
GB 5959.4 Safety in electroheat installations - Part 4. Particular
requirements for safety resistance heating installations
GB/T 6067.1 Safety regulations for lifting appliances - Part 1. General
GB/T 7232 Terminology of metal heat treatment
GB/T 8121 The terminology of technological materials for heat treatment
GB/T 9452 Testing method for working zone of heat treatment furnace
GB/T 10067.1 Basic specifications for electroheat installations Part 1.
General
GB/T 10067.4 Basic technical conditions for electroheat equipment - Part 4.
Indirect resistance furnace
GB/T 11354-2005 Steel-iron parts - Determination of nitrided case depth and
metallographic examination of nitriding structure
GB 14554 Emission standards for odor pollutants
GB 15735 Requirements for the safety and health in production process of
metal heat treatment
GB/T 22560 Gas nitrocarburizing of iron and steel parts
GB/T 27945.1 The management of hazardous solid wastes from heat
treatment salt - Part 1. General management
GB/T 27945.2 The management of hazardous solid wastes from heat
treatment salts - Part 2. Test method of extractives
GB/T 27945.3 The management of hazardous solid wastes from heat
treatment salts - Part 3. Method of innocent treatment
GB/T 27946 Limited value of hazardous substance in the air of heat
treatment working place
GB/T 30822 Environmental protection technical requirements for heat
treatment industry
GB/T 32529 Technical requirement of cleaning liquid waste recycling and
emissions for heat treatment
GB/T 32541 Quality control system for heat treatment
JB/T 6050 Generalization of hardness test for heat treated iron and steel
parts
JB/T 6090 Polishers
3 Terms and definitions
The definitions of GB/T 7232, GB/T 8121, GB/T 11354-2005 and the following
terms and definitions apply to this document.
3.1
Nitride carbonize and oxidize multi-treatment (Quench-Polish-Quench,
QPQ)
4.4.5 Oxidation furnace shall have salt leakage alarm device and corresponding
safety protection device.
4.4.6 Oxidation furnaces shall have air extraction devices and shall comply with
the requirements of 4.9.
4.4.7 Oxidation furnace can choose electric lifting furnace lid or pneumatic lifting
furnace lid, and set up the salt addition port on the furnace lid.
4.5 Control system
4.5.1 The external heat crucible resistance furnace shall meet the requirements
of GB/T 32541 for equipment and instruments.
4.5.2 Each heating zone shall have two thermocouples, one is connected to
temperature control instruments and installed between the crucible and the
resistance wire, the other is connected to the temperature recording instrument
and installed in the crucible, the instrument shall have the alarm function; the
thermocouples shall be checked regularly to ensure normal use.
4.5.3 The control system shall be able to display, control and record the
temperature, as well as record and store the whole process. It has the functions
of automatic temperature timekeeping, automatic timing alarm and salt leakage
alarm, it has the functions of overcurrent, overload and phase failure protection.
4.6 Cleaning device
4.6.1 Cleaning device is divided into pre-cleaning and post-cleaning device, it
may use cleaning tank or cleaning machine.
4.6.2 The cleaning tank shall be made of glass steel or stainless steel, with
stirring function, and its effective size is determined in accordance with the size
of the nitriding furnace crucible.
4.6.3 The temperature control device of the hot water cleaning tank is subject
to temperature measurement by a thermocouple or a thermal resister, and
temperature control by temperature control instrument, with the operating
temperature ≥ 80 °C.
4.6.4 The pre-cleaning device shall be provided with a waste water recovery
device.
4.6.5 The post-cleaning device shall be provided with a waste salt recovery
device.
4.6.6 If cleaning the workpiece with a washing machine, the washing machine
4.10 Lifting system
4.10.1 Lifting machinery shall meet the operational requirements of the QPQ
production line and use the electric hoist with the corresponding load in
accordance with the QPQ equipment specifications.
4.10.2 The design, manufacture and installation of the lifting system shall