CN1057800A

CN1057800A - Spongy iron heat diffusion body and manufacture method thereof

Info

Publication number: CN1057800A
Application number: CN 91104518
Authority: CN
Inventors: 孔凯旋
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-08
Filing date: 1991-07-08
Publication date: 1992-01-15

Abstract

A kind of spongy iron heat diffusion body and manufacture method thereof.Manufacture method comprises: operations such as batch mixes, filling mould, compression molding, reduction sintering.Raw materials used have iron scale or ferric oxide mud, culm, iron filings etc., raw material is after compression molding, in electric furnace, reduce sintering, form spongy iron heat diffusion body, in the formation of radiator, outside the deironing, also comprise the tiny duct that culm is stayed after burning in the micropore that exists between the powder in the raw material and the raw material, the area of dissipation of radiator is very big, the radiating efficiency height.Sponge iron replaces high-quality steel, aluminium, copper material etc. with refuse, saves resource, and radiator can be mounted to multiple heat exchanger, radiator especially, and technology simply is convenient to produce, and cost reduces significantly.

Description

Spongy iron heat diffusion body and manufacture method thereof

The invention belongs to heat exchanger component and manufacture method thereof.

Large usage quantity is radiator in the interchanger, also has solar water heater etc. in addition, at present in the radiator, one class is the cast iron sheet, it is more stable to dispel the heat, moderate cost, but intensity is not high, and the many leakiness of joint, intensity improves to some extent after adopting rare earth material, but still is not suitable for Highrise buildings, and also having a class is all steel sheet, a kind of is to go here and there blocks of heat radiation iron plate on the steel pipe, a kind of is that indent is a water channel on steel plate, and finished product is a plank frame, and advantage is that outward appearance is neat, joint is few, bearing capacity is better, but the price height is higher by 50% than cast iron approximately, board-like surface-area is too little, weak heat-dissipating, immersion heater, cool is fast, heat radiation is unstable, thereby the steel sheet still can not replace the cast iron sheet so far fully.In a word, the performance of existing all kinds of radiators all respectively has relative merits.

The purpose of this invention is to provide a kind of spongy iron heat diffusion body and manufacture method thereof, this radiator area of dissipation is big, good effect of heat exchange, and radiator utilizes waste and scrap, and cost is low, and technology is simple, and facility investment is few.

For achieving the above object, the present invention by the following technical solutions: in the formation of spongy iron heat diffusion body, outside the deironing, also comprise the micropore that exists between the powder in the raw material and burn by careless Stalk or other organism or inorganics after the tiny duct that stays.The manufacture method of spongy iron heat diffusion body comprises: operations such as batch mixes, filling mould, die forming, reduction sintering: a. batch mixes: be mixed brown iron oxide, careless Stalk or other organism or inorganics, iron filings or scrap metal (particle), lime carbonate dried bean noodles even, add used oil and continue mixing, the gained mixture is called major ingredient; B. load mould: with the above-mentioned major ingredient mould of packing into; C. die forming: place top plate on the mould, all push oil press, pressurization is pressed onto required density and shape while vibrating; D. reduce sintering: will press the shape goods stove of packing into, logical hydrogen adds thermal reduction in the stove.

Outside the weeding Stalk, described organism, inorganics have the flammable materials of burning such as branch, paraffin, the proportioning of each component can be decided as required in the raw material, it is too big that organism etc. can be burnt the material consumption, influence intensity, general consumption is less than 20%(weight), refer to compare with ferric oxide, iron filings total amount, machine oil is as tackiness agent, and consumption is less than 8%.In the used scrap metal, iron filings are the most cheap, generally adopt iron filings, and the shape of spongy iron heat diffusion body, size are set by the purposes difference.

The invention will be further described below in conjunction with embodiment and accompanying drawing:

Fig. 1: spongy iron heat diffusion body structural representation

Fig. 2: a kind of sponge iron heat radiation heating sheet structure synoptic diagram

The left view of Fig. 3: Fig. 2

Fig. 4: a kind of sponge iron heat radiation heating sheet structure synoptic diagram

The left view of Fig. 5: Fig. 4

Embodiment 1:

The iron scale that Steel Mill is obtained is crushed to 60 orders, the dehydration of ferric oxide mud is sieved, it is long that grass Stalk is cut into 6mm, and raise sieve burring leaf, and the fragmentation of machining iron filings is screened into the particle less than 2mm, and above-mentioned materials is with sun power or heating, drying, ferric oxide (comprises iron sheet, iron mud) with iron filings particle total amount in, the iron filings consumption is greater than 50%, and careless Stalk 5～8% adds 2% Paris white (140 order) again, with these material put into mixer dried be mixed even after, add a small amount of used oil and continue mixing, become major ingredient, in the locating notch of mould, put into steel pipe then, again above-mentioned major ingredient is packed in the mould, and the stand is even, and this mould is made by heat resisting iron, and suitably machining finishing.Place top plate on mould, all push oil press, be pressed onto required density and shape, want the pressurization while vibrating during pressurization, make the powder under the pipe even, used pressure is 300～500kg/cm ², will press the shove charge of shape goods, with the hydrogen reducing heating, so ferric oxide etc. are reduced to metallic iron, when heating, careless Stalk is burnt stays tiny duct, in addition, exists trickle duct between each powder in Sealed electric oven.Also predeterminable hole and groove in mould.Sponge iron is because these structures in a word, big many of the surface area ratio steel string sheet of sponge iron.

Among Fig. 1, (1) reductive metallic iron, the micropore that exists between (2) pellet, the tiny duct that (3) careless Stalk or other organism, inorganics stay after burning.

Among Fig. 2, Fig. 3, (4) are the medium flow siphunculus, and during fabrication with raw materials such as the iron filings mould of packing into, and through press molding, reduction is sintered into one, and in conjunction with tight, (5) are radiator, and (6) are the groove on the radiator.Among Fig. 4, Fig. 5, (7) medium flow siphunculus, (8) are radiator, and (9) are the groove on the radiator, and two kinds of body series and parallels weld, and can be made into the radiator of any needs.

Advantage of the present invention: the present invention utilizes refuse to replace high-quality steel, aluminium, copper material, saving resource, cost is low, the sponge iron main body is lower than the material valency of string sheet radiator, only have 1/20, this radiator cooling surface area is big, good pressure-resistant performance, when it is used for radiator, compares its qualitative results and see Table 1 with cast iron sheet, string sheet steel disc, indent steel disc.

Claims

1, a kind of spongy iron heat diffusion body is characterized in that in the formation of radiator, outside the deironing, also comprise the micropore that exists between the powder in the raw material and burn by careless Stalk or other organism or inorganics after the tiny duct that stays.

2, a kind of method of making the described spongy iron heat diffusion body of claim 1 is characterized in that it comprises operations such as batch mixes, filling mould, die forming, reduction sintering.

A. it is even brown iron oxide, careless Stalk or other organism or inorganics, iron filings or scrap metal, lime carbonate dried bean noodles to be mixed, and adds used oil and continues mixing, and the gained mixture is called major ingredient.

B. load mould: with the above-mentioned major ingredient mould of packing into.

C. die forming: place top plate on the mould, all push oil press, pressurization is pressed onto required density and shape while vibrating.

D. reduce sintering: will press the shape goods stove of packing into, logical hydrogen adds thermal reduction in the stove.

3, by the manufacture method of the described spongy iron heat diffusion body of claim 2, it is characterized in that total amount, the consumption of careless Stalk＜20%(weight percent corresponding to brown iron oxide, iron filings), machine oil＜8%(weight percent).