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Anti-radiation foaming ceramic and preparation process thereof
The invention relates to the technical field of foamed ceramics, in particular to an anti-radiation foamed ceramic and a preparation process thereof. The anti-radiation foaming ceramic comprises the following raw materials in parts by weight: 20-50 parts of a silicon-aluminum inorganic refractory material, 15-50 parts of lead powder, 20-60 parts of barren waste, 0-15 parts of sand and 0-5 parts of calcined talc or magnesia soil. Based on the total weight of the raw materials of the anti-radiation foaming ceramic, the anti-radiation foaming ceramic further comprises 0.12-0.15 part by weight of a foaming agent and 0.1-0.35 part by weight of high-viscosity sodium carboxymethyl cellulose. The basic formula is adjusted, alkali metal oxide fluxing agents are reduced as much as possible, a silicon-aluminum inorganic refractory material and magnesium soil or talc are introduced mainly under the combined action of lead powder and alkaline earth metal, and it is guaranteed that the foaming ceramic has the good foaming effect under the condition that the lead content is large. Meanwhile, a special firing system is set, the time of a high-temperature heat preservation period in the firing system is strictly controlled, collapse of holes formed after foaming is avoided, deformation is prevented, and the density and strength of the anti-radiation foaming ceramic finished product are appropriate.
本发明涉及发泡陶瓷技术领域，尤其涉及一种防辐射发泡陶瓷及其制备工艺。该防辐射发泡陶瓷包括以下重量份的原料：硅铝质无机耐火材料20‑50份、铅粉15‑50份、瘠性废料20‑60份、砂0‑15份、煅烧滑石或镁质土0‑5份；以防辐射发泡陶瓷的原料总量计，防辐射发泡陶瓷还包括0.12‑0.15重量份的发泡剂和0.1‑0.35重量份的高粘羧甲基纤维素钠。通过调整基础配方，尽量减少碱金属氧化物类熔剂，主要用铅粉和碱土金属共同作用，引入硅铝质无机耐火材料、镁质土或滑石，保证发泡陶瓷在含铅量较大的情况下具有较好的发泡效果。同时设置了特殊的烧成制度，严格控制烧成制度中的高温保温段时间，避免发泡后形成的孔洞坍塌，防止变形，防辐射发泡陶瓷成品的密度和强度适宜。
Anti-radiation foaming ceramic and preparation process thereof
The invention relates to the technical field of foamed ceramics, in particular to an anti-radiation foamed ceramic and a preparation process thereof. The anti-radiation foaming ceramic comprises the following raw materials in parts by weight: 20-50 parts of a silicon-aluminum inorganic refractory material, 15-50 parts of lead powder, 20-60 parts of barren waste, 0-15 parts of sand and 0-5 parts of calcined talc or magnesia soil. Based on the total weight of the raw materials of the anti-radiation foaming ceramic, the anti-radiation foaming ceramic further comprises 0.12-0.15 part by weight of a foaming agent and 0.1-0.35 part by weight of high-viscosity sodium carboxymethyl cellulose. The basic formula is adjusted, alkali metal oxide fluxing agents are reduced as much as possible, a silicon-aluminum inorganic refractory material and magnesium soil or talc are introduced mainly under the combined action of lead powder and alkaline earth metal, and it is guaranteed that the foaming ceramic has the good foaming effect under the condition that the lead content is large. Meanwhile, a special firing system is set, the time of a high-temperature heat preservation period in the firing system is strictly controlled, collapse of holes formed after foaming is avoided, deformation is prevented, and the density and strength of the anti-radiation foaming ceramic finished product are appropriate.
本发明涉及发泡陶瓷技术领域，尤其涉及一种防辐射发泡陶瓷及其制备工艺。该防辐射发泡陶瓷包括以下重量份的原料：硅铝质无机耐火材料20‑50份、铅粉15‑50份、瘠性废料20‑60份、砂0‑15份、煅烧滑石或镁质土0‑5份；以防辐射发泡陶瓷的原料总量计，防辐射发泡陶瓷还包括0.12‑0.15重量份的发泡剂和0.1‑0.35重量份的高粘羧甲基纤维素钠。通过调整基础配方，尽量减少碱金属氧化物类熔剂，主要用铅粉和碱土金属共同作用，引入硅铝质无机耐火材料、镁质土或滑石，保证发泡陶瓷在含铅量较大的情况下具有较好的发泡效果。同时设置了特殊的烧成制度，严格控制烧成制度中的高温保温段时间，避免发泡后形成的孔洞坍塌，防止变形，防辐射发泡陶瓷成品的密度和强度适宜。
Anti-radiation foaming ceramic and preparation process thereof
一种防辐射发泡陶瓷及其制备工艺
ZHANG GUOTAO (author) / ZHA HUANGSONG (author) / HE QIAN (author) / XUE JUNDONG (author) / LIU WENLONG (author)
2024-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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