This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of rare earth magnesium ferrosilicon alloys. This standard is applicable to the production of light rare earth magnesium ferrosilicon alloys used as spheroidizers, vermicularizers and inoculants. GB/T 4138-2004 Rare Earth Magnesium Ferrosilicon Alloys GB/T4138-2004 Standard download decompression password: www.bzxz.net

1CS 77.100
Ｈ 65
National Standard of the People's Republic of China
GB/T4138—2004
Replaces GB/T41381991
Rare earth ferrosiliconmagnesiuni ailoy2004-06-09Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaStandardization Administration of Standardization of the People's Republic of China
Implementation on November 1, 2004
This standard replaces GB/T415--1993 Rare earth magnesium ferrosilicon alloy 3. Compared with GB/T4138.-1S93, this standard has the following changes: GB/T4138-2004
According to the provisions of B/T178036 "Product Brand Designation Method", the word "brand" is used to indicate the product instead of the word "brand".
The special index of Ce/RE is added, and the corresponding analysis method is specified in Appendix A of GB/T4137, and the 19 brands of the original standard are refined to 15 brands. The content of the group in the energy content alloy is adjusted from 44% to 45%. The content of MyO2 is added.
This standard was proposed by the National Development and Reform Commission Office. This standard will be issued by the National Rare Earth Technology Committee. This standard was drafted by Baosteel Rare Earth Factory. The drafters of this standard are Qi Bei, Ping Liliu, Jia Tahua, Zhu Zhuhua, and Kang Jinwen. The National Rare Earth Standardization Technical Committee of China is responsible for explaining that the correct second edition of the standard represented by this standard is: GB/T 4138--1984, GB/T4138-1903.1 Scope
Ferrosilicon alloy
Rare earth magnesium
GB/T 4138--2004
This standard specifies the requirements, test methods, measurement, marking, packaging, transportation and storage of rare earth alloys: This standard applies to the production of vitrified alloys and the use of rare earth alloys. 2 Normative reference documents
The following documents shall become the terms of this standard through reference. All documents with sufficient conditions shall be used as references. All accompanying materials (excluding the contents of the channel or the compensation) shall not be used for partial validity. The parties to the agreement reached on this standard shall confirm whether the latest version of these documents can be used. All out-of-date reference documents shall be used as the basis for determining the acceptance, packaging, storage, transportation, marking and safety of alloys. G/T 3650
GHET COIO
The adoption of scientific analysis and testing by enterprises in the preparation of rare earth alloys
GR/T 4137
GRT1 all departments
Rare earth joint pull, weighing soil chain with the head of the enterprise chemical branch of the force law 3 requirements
3.! The brand and chemical composition of the product meet the requirements of Table 1 Table 1
Chemical composition/5
1951:-1
195191B
193:00
195102
191035
195103C
0. 5-..2. c
0. 3-. -2.
(. 2-. -:2. 0
2.0--*24.0
2.0--24. 0
2. 9--<.4. 0
1 2. 3-- c.1. 0
195163D
195_05AbZxz.net
1S51356
135icra
195167C|| tt||1951es
195118
-.9--c.6.c
t.0---,8.0
ec-...8. 0
6.C --c:8. 2
S. 3-. .0. 0
:7, 0--20,(
4. 5~:23,
5. 5-+*.6. E.
7. 5- -5. 5
6. c-·9.
7, 6--3,n
1, 5~-,c
1.5--·3.c
1.0-·7.5
1. 1~-2. n
I1. n~.-3.n
2.2 -., n
1. 7~.-:2, n
7. 3-. 5. c
T. 3--c..
.o--1.u
au--lu.u
7, 0~-:0, 0
2. c--3. 5
1. 0--2.
2.0-·3.3
1.0--3. 0
.5--3.5
4 yuan, n
Product range n-im minimum 5mm and mr first bottom of each total weight 5% 3.2
GB/T4135—2004
3.3 The appearance of the product should be crisp, not powdery, and the cross section should be bright or yellow. The surface and cross section should not contain slag. 3.4 If the buyer has special requirements for chemical composition and viscosity, the two parties can negotiate separately. 4.1 The product is divided into three parts (other parts) according to GB/16477. 4.2 The product is divided into three parts according to GB/4137 Appendix A (normative). 4.3 The product grain is tested with 5mm and 3Umm ends respectively. 4.4 The appearance of the product is tested by monthly inspection. 5. Inspection regulations 5.1 Inspection and Acceptance 5.1.1 The product shall be inspected by the supplier's technical supervision department to ensure that the product quality is in accordance with the provisions of this standard. A product quality certificate shall be issued. 5.1.2 Strictly inspect the received products. If the inspection results do not meet the requirements of this standard, the supplier shall be notified within one day after receiving the product. The supplier and the buyer shall negotiate and resolve the issue. The inspection shall be conducted by a unit recognized by both parties. The inspection shall be conducted by the buyer. 5.2 Group Batch t||The batch acceptance should be strictly carried out. The batch should consist of products of the same brand and the same particle size. The annual batch should not exceed 2500kg. 5.3 Qualification inspection items
Each batch of products should be inspected for chemical composition, finishing and appearance. 5.4 Sampling and sample preparation
The chemical composition of the products shall be sampled and prepared in accordance with the provisions of G4G12. The particle size of the products shall be sampled within a batch and the inspection shall be carried out. 5.5 Determination of inspection results
Chemical composition If the results of the particle size analysis or particle size analysis do not meet the requirements of this standard, double tests shall be conducted on the batch of products. If the unqualified items are still not met, the batch of products shall be unqualified. 6 Marking, packaging, transportation and storage
6.1 Packaging
The products are packed in plastic or iron core, with a net weight of 25kg per package and a net weight of 100kg per barrel. 6.2 Storage, transportation, marking and quality certificate
The transportation marking and quality certificate of the products shall comply with the provisions of B3: 2
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