Production method of heat-producing insulating riser sleeve

Abstract

The invention relates to a production method of a heat-producing insulating riser sleeve. The production method comprises the steps of batching, mixing, modeling, drying, checking and packaging. The novel heat-producing insulating riser sleeve with high-temperature resistance, low heat conduction and high heat production has excellent heat-producing stability reaching up to 1600 DEG C; and compared with a traditional insulating riser sleeve, the developed riser sleeve has greatly improved feeding efficiency, excellently kept production process performance and use performances of the product, has prominent economic benefit and social benefit on such aspects as promotion of material upgrading, remission of resource deficiency, energy conservation, consumption reduction and improvement of user product quality, and has wide market prospect.

Description

technical field [0001] The invention belongs to the field of riser production, and in particular relates to a production method of a heating and thermal insulation riser sleeve. Background technique [0002] When the ordinary riser sleeve is used for feeding, the required riser volume is large, the consumption of molten metal is large, and the utilization rate is low. Therefore, many manufacturers use thermal insulation riser sleeves or heating riser sleeves to extend the solidification time of the riser to a certain extent and improve the feeding efficiency. However, because the ordinary thermal insulation riser sleeve cannot provide heat to the riser, the heating insulation riser sleeve has the function of self-heating and heat preservation, which can solve the shortcoming of the poor utilization rate of the riser molten metal from a more simple point of view. Composite riser sleeves integrating heat generation and heat preservation have been used in production abroad, bu...

AI Technical Summary

Problems solved by technology

Composite riser sleeves integrating heating and heat preservation have been used in production in foreign countries, but such research in China is still rare

These heat-insulating riser sleeves have different formulas for heating materials, but most of them use high-temperature heating methods, which cannot achieve controllable heating time

[0003] Heating and thermal insulation riser sleeves are generally made of a combination of thermal insulation materials, heating materials, oxidants, refractory materials and adhesives. Among them, the choice of oxidant plays a decisive role in the heating performance of heating and thermal insulation riser sleeves. Aluminum powder and hematite are mostly used as heating materials, with few changes, and the selection of oxidants is also different, with many changes. Domestic research on oxidants is less, the traditional thermal insulation riser sleeve, the developed riser sleeve The feeding efficiency is low, and the production process performance and product performance are poor, which has low economic and social benefits in terms of promoting material replacement, alleviating resource shortage, saving energy and reducing consumption, and improving user product quality.