This standard specifies the terminology, product classification, technical requirements, test methods, inspection rules and packaging, marking, transportation and storage rules of porcelain stone. This standard applies to raw materials for ceramic industry that are mainly composed of quartz, sericite (or hydromica), feldspar and a small amount of kaolinite, carbonate and other minerals and are processed into a certain fineness. QB/T 2264-1996 Porcelain stone for ceramics QB/T2264-1996 Standard download decompression password: www.bzxz.net

QB/T2264—1996
This standard is formulated based on the particularity of raw materials used in my country's ceramic manufacturing. Its main technical indicators are determined based on the characteristics of China's porcelain stone and the requirements of ceramic manufacturing technology. Porcelain stone is a ceramic raw material, mainly composed of quartz, mica, feldspar and a small amount of kaolinite, carbonate and other minerals. So far, there is no recognized and accurate definition of porcelain stone. In order to distinguish it from the original porcelain stone ore, the porcelain stone referred to in this standard is the raw material for the ceramic industry that has been processed into a certain fineness.
This standard is proposed by the Quality Standards Department of the China Light Industry General Association. This standard is technically managed by the National Ceramic Standardization Center. The drafting unit of this standard: China Light Industry General Association Ceramic Research Institute. The main drafters of this standard: Li Miaoliang, Wang Zhongfa, Li Shuo, Chen Benxing. 451
1 Scope
Light Industry Standard of the People's Republic of China
Porcelain Stone for Ceramics
QB/T 2264 -1996
This standard specifies the terminology, product classification, technical requirements, test methods, inspection rules and packaging, marking, transportation and storage rules of porcelain stone. This standard applies to raw materials for ceramic industry that are mainly composed of quartz, mica (or hydromica), feldspar and a small amount of kaolinite, carbonate and other minerals and are processed into a certain fineness. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T4734--1996 Methods for chemical analysis of ceramic materials and products GB/T 4741--1984
GB/T 5000—1985
QB/T 1322—1991
QB/T 1465—1992
QB/T 1503—1992
ZBY 20001---1989
ZBY20002—1989
3 Terminology
Determination method of bending strength of daily-use ceramics
Terminology of daily-use ceramics
Determination method of plasticity index of ceramic clay
Determination method of particle distribution of ceramic raw materials and pigments Determination method of whiteness of daily-use ceramics
Determination method of moisture content of daily-use ceramic clay, mud and glaze slurry Determination method of sieve residue of daily-use ceramic clay and glaze slurry shall be implemented in accordance with GB/T5000.
4 Product classification
4.1 According to the state of the product, it is divided into powder and block. 4.2 According to the quality of the product, it is divided into superior products, first-class products and qualified products. 5 Technical requirements
5.1 The chemical composition of the product shall comply with the provisions of Table 1. Table 1
Chemical composition (wt%)
KO--Naz0
TiO2 Fe2O
Approved by China Light Industry General Association on January 27, 1997wwW.bzxz.Net
Superior product
K20≤3. 5,Na0≤0. 5
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Qualified product
Implemented on September 1, 1997
5.2 Particle size requirements
QB/T2264-1996
5.2.1 The fineness of each grade of porcelain stone shall comply with the provisions of Table 2. Table 2
Standard mesh
≤44 μmContent (wt%)
Superior product
The particle size distribution of each grade of porcelain stone shall comply with the provisions of Table 3. Particle size, m
Cumulative mass, %
3Main physical properties shall comply with the provisions of Table 4. 5.3
Plasticity index
Dry flexural strength, MPa
1280℃~~1320℃Sintered whiteness. Degree=
Superior product
Superior
5.4Product moisture content: powder 5%; block <8%. 5.5Specification and quality
5.5.1Bagged porcelain stone powder per bag 25kg.
5.5.2Block products must be octagonal and straight, six sides flat, each block 2kg. 5.5.3Mass error is allowed to be ±5%.
6Test method
Chemical composition analysis shall be carried out in accordance with GB/T4734. Moisture content determination shall be carried out in accordance with ZBY20001.
Fineness measurement shall be carried out in accordance with ZBY20002.
Particle size distribution measurement shall be carried out in accordance with QB/T1465. 6.5
Dry flexural strength measurement shall be carried out in accordance with GB/T4741. Self-determination shall be carried out in accordance with QB/T1503.
Plasticity index measurement shall be carried out in accordance with QB/T1322. Inspection and testing
Meeting the inspection department
Meeting the inspection product
Each batch of products shall be delivered only after passing the inspection by the inspection department. When delivering, documents proving the quality of the products shall be attached. 7.2 Products shall be batched according to the same state and the same grade. 7.3 Sample extraction.
7.3.1 For powdery bagged products, firstly take bag samples from the product batch according to the provisions of Table 5, and then take 1kg sample from each bag sample, hold them evenly, and reduce them to the sample size required for the test item by quartering method. 453
Batch, bag
Sample size, bag
QB/T 2264—1996
26~150
151~1200
1201~3500
7.3.2 For bulk products in block form, take a sample of not less than 10kg by the grid method or square method, then crush and mix them evenly, and reduce them to the sample size required for the test item by the quartering method.
7.4 Product inspection is divided into factory inspection and type inspection. 7.4.1 The items for factory inspection are the contents specified in Articles 5.2.1, 5.4 and 5.5. If any of the inspection results does not meet the requirements of this standard, the batch of products shall be considered unqualified and shall be reprocessed by the supplier before being submitted for inspection again. 7.4.2 Type inspection shall be carried out at least once a year. Type inspection shall also be carried out in any of the following circumstances. a) When the chemical composition of the ore changes significantly; b) When the production process is changed;
c) When production is resumed after more than six months of suspension; d) When an accident occurs during the production process; e) When the factory inspection results are significantly different from the last type inspection;) When the national quality supervision agency proposes type inspection requirements. 8 Packaging, marking, transportation, storage
8.1 Powdered products are packaged in nylon bags; block products are in bulk. 8.2 The packaging bag should be printed with a mark indicating the production unit, product type, name, trademark, production date, quality grade, unit weight, and packaging, storage and transportation marks. The block should at least indicate the production unit, product name, quality grade, and weight code. 8.3 Transport vehicles and ships must be clean, dry and covered. People, goods and other items must not be mixed to avoid contamination and rain. Handle with care during transportation to avoid loose packages and damage.
8.4 Products must be stored in a clean, dry, covered warehouse. The stacking must be stable and the first stacked should be shipped first. The stacking feet should be replaced frequently to prevent the stacking from collapsing due to long-term storage.
8.5 Transport vehicles are not allowed to enter the warehouse to prevent contamination of the products. 454
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