T/NXZX 011-2024 Insulating Aluminum Silicate Fiber Needle-punched Carpet

Scope

Scope: This document specifies the classification and marking, requirements, test methods, inspection rules, labels, packaging, transportation, and storage of needle-punched aluminum silicate wool blankets for thermal insulation. This document applies to industrial thermal equipment, furnaces, and high-temperature insulation for pipelines, etc. Main technical content: 3. Terminology and definitions 3.1 Needled aluminum silicate wool blanket: A flexible planar product made from unbonded aluminum silicate wool by needle-punching. 4. Classification and marking 4.1 Classification 4.1.1 Products are divided into 6 classes according to their classification temperature, as shown in Table 1. Table 1 Classification temperature Classification temperature number Classification temperature/°C Recommended use temperature/°C 1 1000 ≤800 2 1200 ≤1000 3 1250 ≤1100 4 1350 ≤1200 5 1400 ≤1250 6 1500 ≤1350 Note: The recommended use temperature refers to the long-term recommended temperature of the material, which is generally 150°C lower than the classification temperature, and the specific value should be determined according to the actual operating conditions. 4.1.2 Products are divided into 6 classes according to their chemical composition (the letters in parentheses are the abbreviations of these component types): ordinary type (C), standard type (S), high-purity type (P), high-aluminum type (A), zirconium-containing type (Zr), and chromium-containing type (Cr). 4.2 Product marking 4.2.1 The composition of the product marking consists of 5 parts: product name (full name), classification temperature number, component type abbreviation, product technical characteristic value (bulk density size), and standard number. For products containing inorganic binders or other inorganic fillers, an additional mark (X) is added after the component type abbreviation. 5. Requirements 5.1 Meet the requirements of GB/T 16400. 6. Other requ

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