This standard specifies the requirements for the GWL series power frequency coreless induction aluminum melting furnace (hereinafter referred to as the coreless furnace), including specifications, technical performance, test methods, inspection rules, technical classification, ordering and supply, etc. This standard is applicable to the GWL series aluminum and aluminum alloy coreless furnaces with rated capacity of 0.25, 0.35, 0.50, 0.75, 1.0, 1.5, 2.5, 3.5, 5, 7t, using refractory materials to increase the pot, and mainly used for melting aluminum. JB/T 9692.3-1999 Power Frequency Coreless Induction Aluminum Melting Furnace JB/T9692.3-1999 Standard download decompression password: www.bzxz.net

JB/T9692.3-1999
This standard is a revision of ZBK61003-90 "Power Frequency Coreless Induction Aluminum Melting Furnace". Compared with ZBK61003-~90, this standard mainly deletes a reference standard JB/DQ5368.3--88 "Electric Heating Equipment Product Quality Classification Part 3 GW Series Power Frequency Coreless Induction Melting Furnace" which was abolished after review; the lining life index was deleted in technical content; the writing format is in accordance with GB/T1.1-1993, and corresponding modifications have been made in standard numbering, writing format and corresponding content. This standard is the third part of the series standard JB/T9692-1999. JB/T9692-1999 also includes the following parts: JB/T9692.1--1999 Power frequency coreless induction melting iron (steel) furnace and iron holding furnace JB/T9692.2-1999 Power frequency coreless induction melting copper furnace This standard replaces ZBK61003-90 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Industrial Electric Heating Equipment. The drafting units of this standard are Xi'an Electric Furnace Research Institute and Xi'an Heavy Electric Furnace Manufacturing Co., Ltd. The drafters of this standard are Wang Zifeng and Liu Xiping. This standard was first issued on April 6, 1990 and revised for the first time in 1999. The Secretariat of the National Technical Committee for Standardization of Industrial Electric Heating Equipment is responsible for the interpretation of this standard. 1 Scope
Machinery Industry Standard of the People's Republic of China
Mains frequency coreless induction furnace for melting aluminium
JB/T 9692.3—1999
Replaces ZBK61003—90
This standard specifies the requirements for GWL series power frequency coreless induction furnace for melting aluminium (hereinafter referred to as coreless furnace), including specifications, technical performance, test methods, inspection rules, technical classification, ordering and supply, etc. This standard is applicable to GWL series coreless furnaces for aluminium and aluminium alloys with rated capacities of 0.25, 0.35, 0.50, 0.75, 1.0, 1.5, 2.5, 3.5, 5, 7t, using refractory pots, and mainly used for melting aluminium. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest version of the following standards. GB/T 1196--1993
JB/T9691-1999
Aluminum ingots for remelting
Product model compilation method for electric heating equipment
JB/T9692.1-1999
9 Power frequency coreless induction iron (steel) melting furnace and iron holding furnace 3
This standard adopts the following definitions.
According to Chapter 3 of JB/T9692.11999.
4 Product classification
4.1 Varieties and specifications
The varieties and specifications of coreless furnaces shall comply with the provisions of Table 1. Table 1 Main technical parameters of power frequency coreless induction melting furnace Melting aluminum, 700℃
Product code
Rated capacity
Approved by the State Machinery Industry Bureau on August 6, 199976
Recommended value of rated power of main circuit
Transformer capacity
Melt rate
kw·h/t
Implemented on January 1, 2000
4.2 Model
JB/T9692.3-1999bZxz.net
The model of coreless furnace should be compiled according to JB/T9691, and the technical level code shall be in accordance with 7.1 of this standard. 4.3 Main parameters
According to 1.3 of JB/T9692.1-1999. 5 Technical requirements
The technical requirements of the coreless furnace shall comply with the provisions of Chapter 5 of JB/T9692.1-1999 and the following supplementary provisions. When there is a difference between the two standards, this standard shall prevail.
5.1 Furnace lining
The life of the furnace lining is related to the lining material, furnace construction process, the brand of the melted material and the furnace discharge temperature, maintenance and operation level, etc. Its life value can be specified in the enterprise standard.
5.2 Induction coil
5.2.1 The heat-resistant insulation grade of the insulation layer and insulating paint used for the induction coil shall not be lower than Class B. 5.2.2 Under normal use conditions, the service life of the induction coil (referring to insulation) shall be not less than 15,000, 20,000, and 25,000 hours for A, B, and C grade products respectively.
5.3 Rated temperature
The rated temperature of molten aluminum is 700℃. In actual operation, its working temperature range can be changed according to the needs of 1 process: 5.4 Power consumption and melting rate
The power consumption and melting rate of the coreless furnace shall comply with the provisions of Table 1. The main technical parameters listed in Table 1 are the requirements for Grade A products; the requirements for Grade B and C products can refer to the corresponding quality classification standards. 5 Test method
According to the provisions of Chapter 6 of JB/T9692.1-1999, but the test furnace charge shall be various grades of aluminum ingots in accordance with the provisions of GB/T1196-1993, the length of the material block shall not exceed 250mm, and the surface shall be free of sand, residue or oil, etc. 7 Inspection rules and classification
According to the provisions of Chapter 7 of JB/T9692.1-1999, but the requirements for relevant technical classification shall comply with the provisions of Table 2 of this standard. The technical classification of coreless furnaces shall be in accordance with Table 2. Coreless furnaces of various technical levels shall fully meet the requirements listed in the table and other provisions of this standard.
Table 2 Technical classification of Huipin coreless induction aluminum melting furnace Technical level
Induction line
Power consumption and melting rate
Three-phase current unbalance
Electrical control
According to 5.2.2 requirements
According to 5.4 requirements
According to 5.2.11.2 requirements of JB/T9692.1-1999According to 5.2.12.1 requirements of JB/T9692.1-1999According to 5.3.5 requirements of JB/T9692.1-1999According to 5.3.5 requirements of JB/T9692.1-1999
Provide according to the requirements of 5.5.1 of JB/T9692.1-1999
Can provide all requirements except f in 5.5.1 of JB/T9692.1-1999
Can provide all requirements according to 5.5 of JB/T9692.1-1999
Marking, packaging, transportation and storage
According to the provisions of Chapter 8 of JB/T9692.1-1999
9Ordering and supply
According to the provisions of Chapter 9 of JB/T9692.1-1999
JB/T9692.3-1999
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