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A platform for research: civil engineering, architecture and urbanism
Low-expansion porcelain glaze coating on graphite base material and preparation method of low-expansion porcelain glaze coating
The invention provides a preparation method of a low-expansion porcelain glaze coating on a graphite substrate, which comprises the following steps: preparing porcelain glaze slurry which comprises the following components in percentage by weight: 100 parts of low-expansion porcelain glaze powder, 20-50 parts of deionized water, 0.01-5 parts of binder, 0.01-5 parts of dispergator and 0.01-5 parts of defoaming agent, and the porcelain glaze powder comprises the following chemical components in percentage by weight: 50-65% of SiO2, 5-20% of Al2O3, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5 the raw materials comprise 3%-15% of B2O3, 3%-10% of CaO, 3%-10% of ZnO, 1%-8% of BaO, 0%-5% of MgO, 1%-5% of Na2O and 1%-5 Coating the porcelain glaze slurry on the surface of the graphite base material; the coated graphite base material is dried, sintered and cooled, and then the low-expansion porcelain glaze coating can be formed on the graphite base material. The ceramic glaze coating prepared in the invention has good thermal expansion coefficient matching degree and wettability with a graphite substrate, and high bonding strength, the obtained graphite product has high hardness, compactness and smoothness, the preparation process is simple, and the production cost is low.
本申请提供了一种石墨基材上低膨胀瓷釉涂层的制备方法，其包括：配制瓷釉浆料，其中，瓷釉浆料中包含以下重量比的组分：低膨胀瓷釉粉∶去离子水∶粘结剂∶解胶剂∶消泡剂＝100∶20‑50∶0.01‑5∶0.01‑5∶0.01‑5，瓷釉粉料的化学组成为：SiO2 50％‑65％，Al2O3 5％‑20％，B2O3 3％‑15％，CaO 3％‑10％，ZnO 3％‑10％，BaO 1％‑8％，MgO 0％‑5％，Na2O 1％‑5％，K2O 1％‑5％；将瓷釉浆料涂覆于石墨基材的表面；将涂好的石墨基材进行烘干处理、烧结，冷却后即可在石墨基材上形成低膨胀瓷釉涂层。本申请制备的瓷釉涂层与石墨基材热膨胀系数匹配度和润湿性好、结合强度高，得到的石墨制品硬度高、致密光滑，而且制备工艺简单，生产成本低。
Low-expansion porcelain glaze coating on graphite base material and preparation method of low-expansion porcelain glaze coating
The invention provides a preparation method of a low-expansion porcelain glaze coating on a graphite substrate, which comprises the following steps: preparing porcelain glaze slurry which comprises the following components in percentage by weight: 100 parts of low-expansion porcelain glaze powder, 20-50 parts of deionized water, 0.01-5 parts of binder, 0.01-5 parts of dispergator and 0.01-5 parts of defoaming agent, and the porcelain glaze powder comprises the following chemical components in percentage by weight: 50-65% of SiO2, 5-20% of Al2O3, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5-20% of SiO2, 5 the raw materials comprise 3%-15% of B2O3, 3%-10% of CaO, 3%-10% of ZnO, 1%-8% of BaO, 0%-5% of MgO, 1%-5% of Na2O and 1%-5 Coating the porcelain glaze slurry on the surface of the graphite base material; the coated graphite base material is dried, sintered and cooled, and then the low-expansion porcelain glaze coating can be formed on the graphite base material. The ceramic glaze coating prepared in the invention has good thermal expansion coefficient matching degree and wettability with a graphite substrate, and high bonding strength, the obtained graphite product has high hardness, compactness and smoothness, the preparation process is simple, and the production cost is low.
本申请提供了一种石墨基材上低膨胀瓷釉涂层的制备方法，其包括：配制瓷釉浆料，其中，瓷釉浆料中包含以下重量比的组分：低膨胀瓷釉粉∶去离子水∶粘结剂∶解胶剂∶消泡剂＝100∶20‑50∶0.01‑5∶0.01‑5∶0.01‑5，瓷釉粉料的化学组成为：SiO2 50％‑65％，Al2O3 5％‑20％，B2O3 3％‑15％，CaO 3％‑10％，ZnO 3％‑10％，BaO 1％‑8％，MgO 0％‑5％，Na2O 1％‑5％，K2O 1％‑5％；将瓷釉浆料涂覆于石墨基材的表面；将涂好的石墨基材进行烘干处理、烧结，冷却后即可在石墨基材上形成低膨胀瓷釉涂层。本申请制备的瓷釉涂层与石墨基材热膨胀系数匹配度和润湿性好、结合强度高，得到的石墨制品硬度高、致密光滑，而且制备工艺简单，生产成本低。
Low-expansion porcelain glaze coating on graphite base material and preparation method of low-expansion porcelain glaze coating
一种石墨基材上低膨胀瓷釉涂层及其制备方法
MAO DUSONG (author) / WU HOUZHENG (author)
2022-05-06
Patent
Electronic Resource
Chinese
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