Iron ingots and manufacturing method thereof

Abstract

An iron ingot comprises: a first iron raw material, a second iron raw material, and a binder, wherein the first iron raw material accounts for 83-95% by weight, the second iron raw material accounts for 1.9-8% by weight, and the binder accounts for 1-8% by weight. A method for manufacturing an iron ingot comprises: a mixing step, in which the first iron raw material and the second iron raw material are mixed uniformly, wherein the particle size of the first iron raw material and the second iron raw material is between 0.01-5 mm; a binding step, in which the raw materials from the mixing step are bonded to the binder at a temperature of 40-100°C; a blistering step, in which the iron ingot is extruded and blistered using a blistering machine to form an iron ingot; and a drying step, in which the iron ingot is subjected to dehumidification and drying at a drying temperature and for a drying time.

Claims

1. A method for manufacturing iron ingots, comprising: a mixing step (S0), wherein a first iron raw material and a second iron raw material are mixed to achieve uniform mixing, wherein... The first iron raw material is iron granules, the second iron raw material is iron powder, and the particle size of the first iron raw material and the second iron raw material is between 0.01 and 5 mm; a bonding step (S1) is performed, in which the raw material of the mixing step (S0) is bonded to a binder at a temperature of 40 to 100 degrees Celsius to form a block, wherein the binder contains an adhesive and a curing agent; a block forming step (S2) is performed, in which the block forming machine is used to extrude and form a block to form an iron ingot, wherein the weight of the iron ingot is 120 to 160 grams, and the ingot is an ingot-shaped body with a length of 20 to 80 mm, a width of 20 to 80 mm, and a center height of 30 to 60 mm; and a drying step (S3) is performed, in which the iron ingot is subjected to dehumidification drying at a drying temperature of 25 to 35 degrees Celsius and a drying time of 48 to 148 hours; In the agglomeration step (S2), the iron ingot is extruded and agglomerated using a hydraulic pressure of 80~100 kg / m³, so that the compressive strength of the resulting iron ingot after solidification is 100~180 kgf.

2. The method for manufacturing iron ingots as described in claim 1, wherein, The agglomeration step (S2) further includes a sieving step (S21), in which the mixture of raw materials and binders that cannot be agglomerated is passed through a sieve when iron ingots are formed, and then collected and the agglomeration step (S2) is repeated.

3. The method for manufacturing iron ingots as described in claim 1, wherein, The first iron raw material is iron particles produced by grinding or cutting iron parts, and the second iron raw material is iron powder produced by grinding pig iron, reduced iron, or converter magnetizing material.

4. The method for manufacturing iron ingots as described in claim 1, wherein, The adhesive is a mixture of one or more of bentonite, resin, cassava, corn starch or molasses.

5. The method for manufacturing iron ingots as described in claim 1, wherein, The curing agent is a mixture of one or more of cement, water glass, caustic soda or quicklime.

6. An iron ingot manufactured using the method described in any one of claims 1 to 5, comprising: a first iron raw material, wherein, The first iron raw material has a weight percentage of 83-95%; a second iron raw material has a weight percentage of 1.9-8%; and a binder has a weight percentage of 1-8%, the binder being composed of an adhesive and a curing agent; wherein the first iron raw material is iron granules, the second iron raw material is iron powder, and the particle size of the first iron raw material and the second iron raw material is between 0.01-5 mm.

7. The iron ingot as described in claim 6, wherein, The iron ingot also contains a silicon raw material, a manganese raw material, a phosphorus raw material and a sulfur raw material, wherein the weight percentage of the silicon raw material is 0.1~1%, the weight percentage of the manganese raw material is 0.1~0.5%, the weight percentage of the phosphorus raw material is 0.01~0.05%, and the weight percentage of the sulfur raw material is 0.01~0.05%.

8. The iron ingot as described in claim 6, wherein, The adhesive is a mixture of one or more of bentonite, resin, cassava, corn starch or molasses.

9. The iron ingot as described in claim 6, wherein, The curing agent is a mixture of one or more of cement, water glass, caustic soda or quicklime.

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