YB T 104-1997 电熔莫来石/Electro-fused mullite

电熔莫来石

1 范围

  本标准规定了电熔莫来石的技术要求,试验方法、检验规则,包装、标志和质量证明书。

  本标准适用于人工合成电熔莫来石。

2 引用标准

  下列标准所包含的条文,通过在本标准中引用而构成为本标准的条文。在本标准出版时,所示版本均为有效，所有标准都会被修订,使用标准的各方应探讨使用下列标准最新版本的可能性。

  GB 2007-87 散状矿产品取样、制样通则

  GB 2999-82 粒状耐火材料体积密度试验方法

  GB 6900.2~6900.5-86 粘土、高铝质耐火材料化学分析方法

  GB 7322-87 耐火材料耐火度试验方法

  GB 8170-87 数值修约规则

  YB/T 5142-93 冶金矿产品包装、标志和质量证明书的一般规定

3 牌号

  电熔莫米石产品按 Al₂O₃含量分为 M75和 M70 两个牌号。

4 技术要求

4.1 产品的理化指标应符合表1的规定。

4.2 产品粒度小于 0.088 mm 时,M75中的Fe₂O₃≤0.5%,M70 中的Fe₂O₃≤1.2%,

4.3 产品粒度要求由供需双方商定

4.4 产品中不得混入外来杂物。

5 试验方法

5.1 粒度的测定方法按 GB 2007 进行。

5.2 体积密度和显气孔率的测定按 GB 2999 进行。

5.3 产品化学成分的分析方法按 GB 6900.2~6900.5 进行,

5.4 耐火度检验方法按 GB7322 进行。

5.5 数值修约按 GB 8170 规定进行。

6 检验规则

6.1 产品质量由供方技术监督部门负责检验。

6.2产品按批交货。每批产品由同一牌号组成。每批为一检验单位,每批量不超过 20t。

6.3每批产品采用包装插管法取样,每60袋取一样袋。

6.4将每样袋中取得的份样合成大样,充分混匀,并缩分至不少于10 kg,供产品理化指标检验用。

6.5 需方对产品质量有异议时,应在收货之日起两个月内向供方提出,并由双方会同重新取样复验,以复验结果重新判定牌号。如需仲裁，有关事宜由双方商定。

7 包装、标志和质量证明书

  产品的包装、标志、运输、贮存和质量证明书按 YB/T 5142 进行。

Electro-fused mullite

1 Range

  This standard specifies the technical requirements, test methods, inspection rules, packaging, marking and quality certificates of fused mullite.

  This standard is applicable to synthetic fused mullite.

2 Reference Standards

  The following standards contain provisions which, by reference in this standard, constitute provisions of this standard. At the time of publication of this standard, the versions shown are valid, all standards will be revised, and parties using the standard should explore the possibility of using the latest versions of the following standards.

  GB 2007-87 General rules for sampling and sample preparation of bulk mineral products

  GB 2999-82 Test method for bulk density of granular refractories

  GB 6900.2~6900.5-86 Method for chemical analysis of clay and high alumina refractories

  GB 7322-87 Refractories test method

  GB 8170-87 Numerical modification rules

  YB/T 5142-93 General requirements for packaging, marking and quality certificates of metallurgical and mineral products

3 Brand

  Fused momite products are divided into M75 and M70 grades according to Al2O3 content.

4 Technical Requirements

4.1 The physical and chemical indexes of the product shall comply with the provisions of Table 1.

4.2 When the product particle size is less than 0.088mm, Fe₂O₃ in M75 ≤0.5%, Fe₂O₃ in M70 ≤1.2%,

4.3 Product particle size requirements shall be agreed by both parties

4.4 The product shall not be mixed with foreign debris.

5 Test methods

5.1 The particle size determination method was carried out according to GB 2007.

5.2 The bulk density and apparent porosity were determined according to GB 2999.

5.3 The analysis method of product chemical composition shall be carried out according to GB 6900.2~6900.5.

5.4 Refractories shall be tested according to GB7322.

5.5 The value modification shall be carried out in accordance with GB 8170.

6 Inspection Rules

6.1 Product quality shall be inspected by the technical supervision department of the supplier.

6.2 Products shall be delivered in batches. Each batch consists of the same brand. Each batch shall be one inspection unit, and each batch shall not exceed 20t.

6.3 Each batch of products shall be sampled by packaging intubation method, and one bag shall be taken for every 60 bags.

6.4 Synthesize the sample obtained from each bag into a large sample, mix well, and shrink to not less than 10 kg for the physical and chemical index test of the product.

6.5 If the Demander has any objection to the quality of the products, it shall raise it with the Supplier within two months from the date of receipt of the goods, and both parties shall jointly re-sample and re-inspect the products, and re-determine the brand based on the results of the re-inspection. If arbitration is required, the matter shall be agreed upon by both parties.

7 Packing, marking and quality certificate

  The packing, marking, transportation, storage and quality certificate of the products shall be carried out according to YB/T 5142.