1 Scope
This standard specifies the terms and definitions, classification and designation, equipment and process materials, prepared nitriding parts, nitriding treatment, quality inspection of nitrided parts, safety and health requirements, energy consumption and environmental protection requirements and product report regarding ion nitriding of parts.
This standard is applicable to the ion nitriding treatment of iron and steel parts, and may be referenced for the ion nitriding of other materials.
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/T 536 Liquefied anhydrous ammonia
GB/T 1220 Stainless steel bars
GB/T 1221 Heat-resistant steel bars
GB/T 1299 Tool and mould steels
GB/T 1348 Spheroidal graphite iron castings
GB/T 3077 Alloy structure steels
GB/T 3634.2 Hydrogen - Part 2: Pure hydrogen, high pure hydrogen and ultra-pure hydrogen
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method
GB/T 7232 Terminology of metal heat treatment
GB/T 8121 The terminology of technological materials for heat treatment
GB/T 8979 Pure nitrogen and high purity nitrogen and ultra pure nitrogen
GB/T 9451 Determination of total or effective thickness of thin surface hardened layers of steel parts
GB/T 9452 Testing method for working zone of heat treatment furnace
GB/T 9943 High-speed tool steels
GB/T 10066.1 Test methods for electroheat installations - Part 1: General
GB/T 11354 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts
GB/T 12603 Classifications and designations for metal heat treatment
GB/T 13324 Terminology of heat treatment equipment
GB 15735 Requirements for the safety and health in production process of metal heat treatment
GB/T 17358 Power consumption, measurement, and testing in heat treating production
GB/T 17394.1 Metallic materials - Leeb hardness test - Part 1: Test method
GB/T 18449.1 Metallic materials - Knoop hardness test - Part 1: Test method
GB/T 19944 Fuel consumption calculation and measurement method in heat treating production
GB/T 21736 Technical specifications of energy-saving combustion devices for heat treating
GB/T 30822 Environment protection technical requirement for heat treatment
JB/T 6050 Generalization of hardness test for heat treated iron and steel parts
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 7232, GB/T 8121, GB/T 13324 and the following apply.
3.1
prepared nitriding parts
parts ready for ion nitriding treatment after proper conditioning treatment and machining
3.2
nitrided parts
parts after ion nitriding
3.3
auxiliary cathode (anode)
iron and steel components added on the cathode (anode) to improve the temperature uniformity of nitrided parts
3.4
conductance
ratio of conducting time to pulse period in a pulse period
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Process classification and designation
5 Ion nitriding equipment and materials
6 Prepared nitriding parts
7 Nitriding treatment
8 Quality inspection of nitrided parts
9 Safety and health requirements
10 Requirements for energy consumption and environmental protection
11 Product report
Annex A (Informative) Effect of gas composition on nitrided case type and compound layer formation during ion nitriding
Annex B (Informative) Key points for furnace charging
Annex C (Informative) Test method for compound layer and nitride type in the compound layer
1 Scope
This standard specifies the terms and definitions, classification and designation, equipment and process materials, prepared nitriding parts, nitriding treatment, quality inspection of nitrided parts, safety and health requirements, energy consumption and environmental protection requirements and product report regarding ion nitriding of parts.
This standard is applicable to the ion nitriding treatment of iron and steel parts, and may be referenced for the ion nitriding of other materials.
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/T 536 Liquefied anhydrous ammonia
GB/T 1220 Stainless steel bars
GB/T 1221 Heat-resistant steel bars
GB/T 1299 Tool and mould steels
GB/T 1348 Spheroidal graphite iron castings
GB/T 3077 Alloy structure steels
GB/T 3634.2 Hydrogen - Part 2: Pure hydrogen, high pure hydrogen and ultra-pure hydrogen
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method
GB/T 7232 Terminology of metal heat treatment
GB/T 8121 The terminology of technological materials for heat treatment
GB/T 8979 Pure nitrogen and high purity nitrogen and ultra pure nitrogen
GB/T 9451 Determination of total or effective thickness of thin surface hardened layers of steel parts
GB/T 9452 Testing method for working zone of heat treatment furnace
GB/T 9943 High-speed tool steels
GB/T 10066.1 Test methods for electroheat installations - Part 1: General
GB/T 11354 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts
GB/T 12603 Classifications and designations for metal heat treatment
GB/T 13324 Terminology of heat treatment equipment
GB 15735 Requirements for the safety and health in production process of metal heat treatment
GB/T 17358 Power consumption, measurement, and testing in heat treating production
GB/T 17394.1 Metallic materials - Leeb hardness test - Part 1: Test method
GB/T 18449.1 Metallic materials - Knoop hardness test - Part 1: Test method
GB/T 19944 Fuel consumption calculation and measurement method in heat treating production
GB/T 21736 Technical specifications of energy-saving combustion devices for heat treating
GB/T 30822 Environment protection technical requirement for heat treatment
JB/T 6050 Generalization of hardness test for heat treated iron and steel parts
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 7232, GB/T 8121, GB/T 13324 and the following apply.
3.1
prepared nitriding parts
parts ready for ion nitriding treatment after proper conditioning treatment and machining
3.2
nitrided parts
parts after ion nitriding
3.3
auxiliary cathode (anode)
iron and steel components added on the cathode (anode) to improve the temperature uniformity of nitrided parts
3.4
conductance
ratio of conducting time to pulse period in a pulse period
Contents of GB/T 34883-2017
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Process classification and designation
5 Ion nitriding equipment and materials
6 Prepared nitriding parts
7 Nitriding treatment
8 Quality inspection of nitrided parts
9 Safety and health requirements
10 Requirements for energy consumption and environmental protection
11 Product report
Annex A (Informative) Effect of gas composition on nitrided case type and compound layer formation during ion nitriding
Annex B (Informative) Key points for furnace charging
Annex C (Informative) Test method for compound layer and nitride type in the compound layer
