CN205904387U - Nickelic magnesium iron blast pipe the gating system - Google Patents

Abstract

The utility model discloses a nickelic magnesium iron blast pipe the gating system, be in including sprue, setting cross gate, the setting of sprue lower part both sides are in water in the cross gate both sides, the interior end -to -end connection after -feeding reservoir that waters, after -feeding reservoir waters in through the short circuit and is connected with the inlet flange facial features of blast pipe body both sides side, the blast pipe body sets up insulation riser in the middle part of the inlet flange face, set up insulation riser on the outlet flange of blast pipe body, adopt the utility model discloses a when pouring into a mould this type blast pipe for process yield is by 33% original promotion to 42%, cancel the use that the sediment net was kept away to the pottery simultaneously, solved the phenomenon of outlet flange root shrinkage porosite gas leakage, the product percent of pass that also makes is by 69% original promotion to 94%, the leakproofness and the toughness that still enable simultaneously the blast pipe improve greatly, have improved the life of blast pipe, have practiced thrift cost of maintenance.

Description

A kind of high-Ni-Cr cast iron exhaustor running gate system

Technical field

This utility model is related to automobile part production technique field, specially a kind of high-Ni-Cr cast iron exhaustor cast system System.

Background technology

Existing engine exhaust, because product structure is complicated, wall thickness deviation is big, and isolated thermal center is many, and pipe shaft has many The isolated lug in place；It is high-Ni-Cr cast iron plus material, material volume contraction itself is big, poor fluidity, mushy freezing, feeding is difficult, Shrinkage porosite is inclined to the reason such as big, causes product median septum and flange connection position to be equipped with shrinkage defect, burr, causes tube wall to ftracture；Enter Gas flange and tube wall delivery position, thermal center is big, shrinkage porosite and inhales recessed casting flaw, leads to pressure testing gas leakage；High-Ni-Cr cast iron material Feature, when producing nickelic material commonly used big rising head or plus insulating riser sleeve feeding, product yield is low, affects product Exploitation.

Such as Chinese Patent Application No. is a kind of light-duty vehicle exhaust pipe pouring technology of 201410432490.2 propositions, specifically Content is: the position of cast gate moved on to the middle mouth of pipe position of exhaustor from avris, makes molten iron inject die cavities from two mouths of pipe, from And the gas in die cavity, under rising molten iron promotion, is discharged by two cast passages respectively, meanwhile and timely have adjusted The gap of core print, this utility model is tight due to gap, and molten iron is not excessive, prevents from shutting core print, reduces beneficial to aerofluxuss again Overlap ferrum pierces, thus the root that the pore solving exhaustor produces, improves conforming product rate, although above utility model improves The qualification rate of product, but solve the problems, such as shrinkage porosite and the product spot shrinkage of pipe shaft lug；Such as Chinese Patent Application No. again For a kind of automobile engine exhaust pipe pouring technology of 201510230123.9 propositions, particular content is: according to Langaloy stream Dynamic property and shrinkage factor carry out three-dimensional modeling, and complete rapid shaping paper matrix mold, the making of lower mould, using rapid shaping Paper based on mould, phenolic resin self-hardening sand molding, while carrying out alloy with inoculated technology adjustment, the examination being exhausted pipe is poured Note；It is primary raw material that melting raw material adopts steel scrap, alloy, carburant, nodulizer addition 1.5%, 75sife innoculant adding quantity 1.2%, carry out the pouring experiment of exhaustor, this utility model has following beneficial effect: using heavy dose of inoculation pair There is preferable impact in spheroidization of graphite, exhaustor can all reach performance requirement, and under suitable pouring temperature, pourable molding is complete Whole exhaust pipe of engine foundry goods, and apparent condition is preferably, all there is shrinkage porosite and shrinkage cavity, edge 2 at 3 lugs of exhaustor Individual lug due to cooling condition preferably, shrinks tendency relatively small；Although above patent achieves the aerofluxuss pipe surface pouring into State is good, shrinks the relatively small advantage of tendency, but, it is low still not solve casting technique yield rate, low the asking of yield rate Topic；And cannot be avoided the problem ftractureing in flange position of giving vent to anger because of high temperature.

Utility model content

The purpose of this utility model is to provide a kind of high-Ni-Cr cast iron exhaustor running gate system, for solving such foundry goods work The problem that skill yield rate is low and yield rate is low, the phenomenon ftractureing because of high temperature in the flange position that simultaneously avoids giving vent to anger.

For achieving the above object, this utility model provides a kind of following technical scheme: high-Ni-Cr cast iron exhaustor running gate system, The cross gate including sprue, being arranged on described sprue bottom both sides, the ingate being arranged on described cross gate both sides；Described Ingate end connects feeding head, and described feeding head passes through the inlet flange of short circuit ingate and aerofluxuss tube body both sides side Face is connected, and described aerofluxuss tube body arranges insulated feeder, the flange of giving vent to anger of described aerofluxuss tube body in inlet flange Middle face Upper setting insulated feeder.

Exhaust needle is arranged on the screw boss of described aerofluxuss tube body.

Described feeding head is oval feeding head for cross section.

Described exhaustor is four cylinders or six cylinder exhaustors.

Block is taken out in hole site setting activity of giving vent to anger on described flange of giving vent to anger.

Compared with prior art, the beneficial effects of the utility model are: using one case two pieces layout type so that once Cast obtains two pieces workpiece；And in inlet flange with tube wall delivery position because thermal center is greatly it is easy to shrinkage porosite to inhale recessed casting Make defect, lead to pressure testing gas leakage, and in this device, be provided with three rising heads at which, for direct feeding is carried out to it is ensured that Casting quality herein；In order to ensure during cast, inlet flange face rate of cooling is identical, and second and the 3rd exhaust branch pipe Flange face at arrange insulated feeder；And also to Shrinkage cavity in the flange that avoids giving vent to anger, the rising head of row setting thereon Carry out feeding, and the quality burr being not easily cleaned occurring and affecting aerofluxuss inside pipe wall in order to avoid flange of giving vent to anger, giving vent to anger At venthole on flange, block is taken out in setting activity.

In addition, this device arranges exhaust needle in screw boss, solve shrinkage porosite and the contracting of product thermal center of exhaustor convex platform Loose problem；Using of the present utility model the type exhaustor is poured into a mould when so that product yield is by original 33% lifting To 42%；Eliminate the use that slag net kept away by pottery simultaneously, solve the phenomenon of flange root shrinkage porosite gas leakage of giving vent to anger；Also the product making Qualification rate is promoted to 94% by original 69%, the sealing of exhaustor and toughness can also be made to greatly improve, the row of improve simultaneously The service life of trachea, has saved maintenance cost.

Brief description

Fig. 1 pours into a mould the structural representation of finished parts for this utility model；

Fig. 2 pours into a mould the perspective view of finished parts for this utility model；

Fig. 3 gives vent to anger for this utility model the amplification partial structural diagram of flange.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.

Refer to Fig. 1-2, this utility model provides a kind of a kind of technical scheme: high-Ni-Cr cast iron exhaustor running gate system, bag Include sprue 6, be arranged on the cross gate 5 of described sprue 6 bottom both sides, be arranged on the ingate 4 of described cross gate 5 both sides； Described ingate 4 end connects feeding head 7, and described feeding head 7 passes through the both sides of short circuit ingate 14 and aerofluxuss tube body 9 Side inlet flange 3 face is connected, and described aerofluxuss tube body 9 arranges insulated feeder 7, described exhaustor in inlet flange 3 Middle face Insulated feeder 2 is arranged on the flange of giving vent to anger of body 9；Exhaust needle 11 is arranged on the screw boss 8 of described aerofluxuss tube body 9；Described Feeding head 7 is oval feeding head for cross section；Described aerofluxuss tube body 9 is four cylinder exhaustors.

In this embodiment cross gate near the position of sprue arrange minimum cross-section so that cast when high-Ni-Cr cast iron liquid Can steadily, continuously, uniformly be full of die cavity；Eliminate turbulent flow, it is to avoid gas is involved in the oxidation causing, and also mitigates to core simultaneously With washing away of casting mold；And this device rising head rationally distributed in conjunction with exhaust needle making it difficult to the casting flaw of feeding position shrinkage porosite Disappear.

In addition, in this embodiment in the form of pipe nipple ingate, connecing of insulated feeder and inlet flange face can be reduced Contacting surface amass so as to cleaning workpiece when operation easier；And the rising head adopting can enter to flange of giving vent to anger at any time for insulated feeder Row feeding, reduces the probability that flange of giving vent to anger produces Shrinkage cavity.

Referring to Fig. 3, embodiment two, it is with the difference of embodiment one: in venthole 13 position on described flange 1 of giving vent to anger Block 12 is taken out in setting activity.

Block is taken out in the activity that is provided with gas outlet in this embodiment, can formed here to the protection at gas outlet, keep away Exempt from rising head and flange bump contact of giving vent to anger；Thus eliminating burr, solve platform experiment problem of Cracking.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of high-Ni-Cr cast iron exhaustor running gate system it is characterised in that: include sprue, be arranged on described sprue bottom two The cross gate of side, it is arranged on the ingate of described cross gate both sides；Described ingate end connects feeding head, and described feeding emits Mouth is connected with the inlet flange face of aerofluxuss tube body both sides side by short circuit ingate, and described aerofluxuss tube body is in inlet flange Middle face arranges insulated feeder, and the flange of giving vent to anger of described aerofluxuss tube body arranges insulated feeder.

2. high-Ni-Cr cast iron exhaustor running gate system according to claim 1 it is characterised in that: the spiral shell of described aerofluxuss tube body Exhaust needle is arranged on stricture of vagina boss.

3. high-Ni-Cr cast iron exhaustor running gate system according to claim 2 it is characterised in that: described feeding head be transversal Face is oval feeding head.

4. high-Ni-Cr cast iron exhaustor running gate system according to claim 3 it is characterised in that: described exhaustor be four cylinders or Six cylinder exhaustors.

5. high-Ni-Cr cast iron exhaustor running gate system according to claim 4 it is characterised in that: going out on described flange of giving vent to anger Block is taken out in the setting activity of pore position.