CN101722276A

CN101722276A - Method for producing high manganese steel casting and performing heat treatment instantaneously

Info

Publication number: CN101722276A
Application number: CN200810068956A
Authority: CN
Inventors: 梁作龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-30
Filing date: 2008-10-30
Publication date: 2010-06-09

Abstract

The invention relates to a method for producing a high manganese steel casting and performing heat treatment instantaneously. The method overcomes the disadvantages of background technology, namely performing secondary heating on a room-temperature high manganese steel casting and having large electrical energy consumption, high cost and long production period. The method is characterized in that: paving bottom sand on a casting box 4 special for a lost foam, placing a seepage support net on the bottom sand, encasing a foam pattern of the high manganese steel casting, a temperature measuring device pattern 2 and a test block pattern on the leakage support net together for compaction and sand molding, after vacuumizing and pouring, inserting a thermocouple 11 into a temperature measuring device, when the required temperature is reached, drawing the thermocouple 11 out, hoisting the leakage support net together with the high manganese steel casting, the temperature measuring device and a test block on the leakage support net into a circulating water pool for water toughening treatment, and after cooling, hoisting the leakage support net and the casting out. The method can produce the high manganese steel casting through one step without performing secondary warming on the casting, saves mass electrical energy, and is applicable to the production and the heat treatment of the high manganese steel casting by modeling methods of clay sand, sodium silicate sand, resin sand, precoated sand, normal mould and the like.

Description

A kind of method of producing high manganese steel casting and heat-treating immediately

Technical field

The present invention is a kind of production method of foundry goods, particularly a kind of method of producing high manganese steel casting and heat-treating immediately.

Background technology

In the prior art, no matter be that clay-bonded sand, water-glass sand, resin sand, precoated sand, disappearance mould, method die cast etc. are made the sand mold method, it is produced high manganese steel casting and heat-treats all and must carry out following operation: melt molten steel 1.; 2. make sand mold; 3. cast; 4. unpack; 5. cooling back sand removal; 6. cut off dead head; 7. high manganese steel casting is placed into normal temperature; 8. again foundry goods is placed in an orderly manner resistance furnace or other heating furnace; 9. heat; 10. be incubated after reaching required temperature; 11. the high manganese steel casting after will being incubated is come out of the stove fast, and places the circulating water pool below 100 ℃ to carry out the tough processing of water; Hang out after the cooling.Though this traditional handicraft method also can be produced high manganese steel casting and it is heat-treated, its weak point is: operation is tired of lock, production efficiency is low, labor strength is big.The temperature difference is big in the heating furnace.Especially need the high manganese steel casting that is placed into normal temperature is carried out post bake, a large amount of consume electric power, the cost height, the production cycle is also long.

Summary of the invention

In order to solve the weak point in the above-mentioned background technology, the purpose of this invention is to provide a kind of method of producing high manganese steel casting and heat-treating immediately.Technical solution of the present invention is: in the sandbox 4 of the special-purpose vacuum-pumping of disappearance mould, after spreading bed load, holder of the present invention slipped through the net 1 place on the bed load, (this test block apperance also shouldn't with Foam Pattern, temperature measuring equipment apperance 2 and the test block apperance of high manganese steel casting again, replace with cutting dead head down) place holder to slip through the net also to case in the lump on 1 jolt ramming to make sand mold, vacuumize, pour into a mould, slightly, the thermoelectric corner 11 of preheating is inserted in the sleeve pipe 12 of temperature measuring equipment.When temperature indication reaches required temperature, withdraw from thermoelectric corner 11, holder to be slipped through the net 1 sling, this moment, sand can be left out in sandbox 4 automatically.Again holder is slipped through the net and 1 hang in the effect of carrying out the tough processing of water in the circulating water pool below 100 ℃ and obtaining water explosition blast cleaning in the lump together with the high manganese steel casting on it, temperature measuring equipment and test block.Hang out holder after the cooling and slip through the net 1 and foundry goods, get final product.

The present invention compares the advantage that background technology has: technology is simple, easy to operate, labour intensity is little, with short production cycle, production efficiency is high, cost is low, Heat stability is good, good mechanical property and stable.Particularly need not foundry goods is carried out secondary heating, settle at one go, saved a large amount of electric energy.The temperature difference problem that does not have heating furnace in the background technology.To producing high manganese steel casting and it being heat-treated technology is a major reform.Social benefit, economic benefit and environmental economy are remarkable.

Description of drawings:

Fig. 1 adds partial schematic sectional view (containing sandbox 4) in the holder overall structure solid of making sand mold 3 and thermoelectric corner temperature measuring equipment 2 on 1 of slipping through the net.

Fig. 2 looks and adds cross-sectional schematic the slip through the net overall structure master that makes sand mold 3 and thermoelectric corner temperature measuring equipment 2 on 1 of holder.Wherein 7 be cup, 8 is the vacuum tube outlet.

Fig. 3 is slip through the net 1 a schematic perspective view of a kind of holder of structure.

Fig. 4 is that the overall structure master of thermoelectric corner temperature measuring equipment 2 looks and adds cross-sectional schematic.

Fig. 5 is the vertical view of Fig. 4.

Fig. 6 is slip through the net 15 an overall structure schematic perspective view of the holder of another kind of structure.

Fig. 7 is slip through the net 17 an overall structure schematic perspective view of the holder of the third structure.

Fig. 8 is the overall structure schematic diagram of the hanging beam 9 of another kind of structure.

Fig. 9 is that the metalwork that the formation holder is slipped through the net is the schematic diagram of " undaform " structure 19.

Figure 10 is 10 the schematic diagram of slipping through the net of another kind of structure.Wherein 20 be round leakage sand hole.

The specific embodiment

The present invention is described in further detail below in conjunction with accompanying drawing and embodiment:

The holder structure of slipping through the net is: slipping through the net connects hanging beam 9, chain sling 6 and suspension ring 5 (as shown in Figure 3) on 10 successively.

Slip through the net and have the sand launder of leakage, hole on 10.

Hanging beam 9 is one of following all structures:

1. four terminations of two hanging beams 9 that are " people " font are connected (as shown in Figure 6) with 10 four the angle ends of slipping through the net respectively;

2. four terminations of two hanging beams 9 that are " people " font are connected two " people " the font metalworks and the uniform metalwork 21 (as shown in Figure 8) between 10 of slipping through the net with 10 four the angle ends of slipping through the net respectively;

3. and slip through the net 10 corresponding four metalworks 16 of frame and the uniform metalwork 18 (as shown in Figure 7) between 10 of slipping through the net.

Metalwork 19 on holder is slipped through the net is (as shown in Figure 9) of " undaform " also.

The structure of temperature measuring equipment apperance 2 is: outer surface brushing paint 13, one ends at foam 14 are uncovered, and the totally enclosed sleeve pipe 12 of the other end inserts in the foam 14.

Method of the present invention also is applicable to formative methods production high manganese steel casting and heat treatments thereof such as clay-bonded sand, water-glass sand, resin sand, precoated sand, method mould.

Claims

1. the method for producing high manganese steel casting and heat-treating immediately comprises: the fusing molten steel; In the sandbox (4) of the special-purpose vacuum-pumping of disappearance mould, make sand mold after spreading bed load; Cast; Unpack; Place the circulating water pool below 100 ℃ to carry out the tough processing of water high manganese steel casting; Hang out after the cooling; Cut off dead head, it is characterized in that: in the sandbox (4) of the special-purpose vacuum-pumping of disappearance mould, after spreading bed load, holder is slipped through the net (1) place on the bed load, slip through the net in holder again (1) go up Foam Pattern with high manganese steel casting, sand mold is made in the jolt ramming of casing in the lump of temperature measuring equipment apperance (2) and test block apperance, vacuumize, cast, slightly, the thermoelectric corner (11) of preheating is inserted in the sleeve pipe (12) of temperature measuring equipment, when temperature is indicated the temperature that reaches required, withdraw from thermoelectric corner (11), holder is slipped through the net (1) sling, again holder is slipped through the net (1) together with the high manganese steel casting on it, temperature measuring equipment and test block hang in the circulating water pool below 100 ℃ in the lump carries out the tough processing of water, hangs out after the cooling.

2. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, it is characterized in that the structure that described holder is slipped through the net is: connect hanging beam (9), chain sling (6) and suspension ring (5) on slip through the net (10) successively.

3. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, it is characterized in that: have the sand launder of leakage, hole on described the slipping through the net (10).

4. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, it is characterized in that the structure of described hanging beam (9) is: two four terminations that are the hanging beam (9) of " people " font are connected with four angle ends of slip through the net (10) respectively.

5. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, the structure that it is characterized in that described hanging beam (9) is: two four terminations that are the hanging beam (9) of " people " font are connected with four angle ends of slip through the net (10) respectively, two " people " the font metalworks and the uniform metalwork (21) between (10) of slipping through the net.

6. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, it is characterized in that the structure of described hanging beam (9) is: and corresponding four metalworks of the frame of slip through the net (10) (16) and the uniform metalwork (22) between (10) of slipping through the net.

7. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, it is characterized in that: the metalwork of holder on slipping through the net be " undaform " also.

8. according to a kind of method of producing high manganese steel casting and heat-treating immediately described in the claim 1, the structure that it is characterized in that described temperature measuring equipment apperance (2) is: at the outer surface brushing paint (13) of foam (14), one end is uncovered, and the totally enclosed sleeve pipe of the other end (12) inserts in the foam (14).