CN202114259U - Powder metallurgy outer conical ring compacting die - Google Patents
Powder metallurgy outer conical ring compacting die Download PDFInfo
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- CN202114259U CN202114259U CN201120196114XU CN201120196114U CN202114259U CN 202114259 U CN202114259 U CN 202114259U CN 201120196114X U CN201120196114X U CN 201120196114XU CN 201120196114 U CN201120196114 U CN 201120196114U CN 202114259 U CN202114259 U CN 202114259U
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Abstract
The utility model discloses a powder metallurgy outer conical ring compacting die, which comprises a compacting female die, an upper punch, a lower punch and a mandrel. An annular inner cavity is formed by an inner form of the compacting female die and an outer form of the mandrel penetrating through the center of an inner cavity of the compacting female die, and the lower portion of the inner cavity and the upper portion of the upper punch are in clearance fit. During compacting forming, the upper punch slides downwards, the lower portion of the upper punch is inserted into the upper portion of the inner cavity and is in clearance fit with the inner cavity, and an inner cavity formed among the inner form of the compacting female die, the outer form of the mandrel, the lower punch and the lower punch is similar to the outer form of an outer conical ring blank. The compacting die adopting the powder metallurgy technology compacts powder metallurgy materials to form outer conical press rings directly, then the outer conical press rings are sintered to form outer conical ring blanks in a copper infiltration manner, and accordingly, the manufacturing technology for the outer conical rings is simplified, production efficiency and material utilization rate are increased and manufacturing cost is reduced greatly. Besides, the powder metallurgy outer conical ring compacting die is suitable for mass production of outer conical rings which are stable in quality, low in processing allowance and excellent in strength.
Description
Technical field
The utility model relates to engine mission parts manufacturing technology field, specifically relates to the press-moulding die of the outer conical ring of a kind of powder metallurgy synchronized.
Background technology
It is raw material that the outer conical ring of existing engine mission synchronized adopts quality carbon steel, produces outer cone circulation layer spare through mechanical processing technique again, existence not enough as follows:
(1), there are 6 on the body of outer conical ring along the equally distributed concave station of circumference.Above-mentioned concave station forms through machining, and each concave station and centre bore face two junctions vertically are wedge angle, be prone to there is burr, and can't be machined into measure-alike rounded corner, externally the assembling of conical ring and use unfavorable; Specifically, outer conical ring is in when assembling, and each concave station and centre bore face 2 wedge angles of junction vertically can scratch assembly crewman's finger, influence assembly crewman's safety.
(2), 6 junctions along circumference equally distributed concave station bottom surface and its centre bore face are wedge angle on the outer conical ring body, also can't be machined into rounded corner.Part after the machining can only be removed burr simply with file, influences the outward appearance of product.
(3), 6 junctions along circumference equally distributed concave station bottom surface and concave station cylindrical are wedge angle on the outer conical ring body, also can't be processed into rounded corner with common mechanical processing technique.Part after the machining is because the wedge angle that this junction exists can reduce the intensity index of product because of sharp angle effect.
(4), the male cone (strobilus masculinus) of outer conical ring will reach instructions for use through the machining of precision, the round steel profile that outer conical ring blank uses can only be circular, has strengthened the allowance of machining, causes stock utilization to cross low a large amount of machining periods of having wasted.
(4), in a word, the mechanical processing technique of existing outer conical ring is complicated, needs a large amount of process equipment and machining period; And production efficiency is low; Stock utilization is low, has improved manufacturing cost greatly, also is difficult to produce in enormous quantities the outer conical ring product of steady quality, function admirable.
(5), up to the present, the compacting tool set that utilizes powder metallurgical technique, powdered metallurgical material be directly formed to outer conical ring does not also appear in the prior art.
The utility model content
The utility model technical problem to be solved is the compacting tool set that conical ring outside a kind of powder metallurgy is provided to above-mentioned deficiency; This compacting tool set adopts powder metallurgical technique, is outer conical ring with the direct compression moulding of powdered metallurgical material, and processes blank through oozing the copper sintering; Thereby simplify the manufacturing process of outer conical ring; Enhance productivity and stock utilization, reduce manufacturing cost greatly, be suitable for producing in enormous quantities steady quality, allowance is little, strength character is good outer conical ring.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
The compacting tool set of the outer conical ring of a kind of powder metallurgy comprises die mould former, plug, upper punch and bottom punch, wherein:
Said die mould former, die cavity is divided into the cylindrical die cavity in top, middle part taper die cavity and lower cylindrical shape die cavity from top to bottom successively in it;
Said plug, equidistance is distributed with a plurality of radial protrusions that extend vertically on the outer circumference surface of its body; Be provided with a cylindrical step in the plug upper part of body;
Said bottom punch, die cavity is to be interconnected by a plurality of radial grooves that are equally spaced along circumference and extend vertically and a plurality of dowel to form in it, this radial groove and dowel are provided with at interval; Radial groove on the bottom punch inner peripheral surface and the corresponding setting of radial protrusion on the mandrel outer periphery; The corresponding setting of lower cylindrical shape die cavity of the external form of bottom punch and die mould former;
Said upper punch, the interior type of its underpart is corresponding setting with the external form on plug top, the external form of its underpart is corresponding setting with the cylindrical die cavity in the top of die mould former; Circumference evenly is provided with a plurality of boss or groove in the upper edge, lower surface of upper punch;
During assembling, the interior type of said die mould former and form the interior die cavity of an annular in the die mould former between the plug external form at die cavity center, the top formation matched in clearance of the bottom of die cavity and bottom punch in this; During compression moulding, upper punch is to lower slider, and its underpart gets into the top of above-mentioned inner chamber type and forms matched in clearance; Interior die cavity between external form, bottom punch and the upper punch of the interior type of die mould former and plug with outside the external form of conical ring blank close.
The middle part taper die cavity of said die mould former is the conical surface, angle β=0.1 between this conical surface and its center axially bored line °～15 °; Cylindrical die cavity in said top and lower cylindrical shape die cavity are the face of cylinder; The joint of the cylindrical die cavity of the middle part taper die cavity of said die mould former and its top, lower cylindrical shape die cavity is a rounded corner, and this rounded corner is R=0.01～3mm.
The cylindrical die cavity in the top of said die mould former, lower cylindrical shape die cavity are rounded corner with the junction of its upper surface, lower surface respectively; This rounded corner is R=0.01～5mm.
Be provided with a step in the middle of the external form of said die mould former.
The junction of the dowel of said bottom punch and centre bore face is a chamfering, and its chamfering value is γ=1 °～80 °, L=0.01～2mm, H1=0～1mm.
The bottom cylindrical of said bottom punch is provided with base.
Said bottom punch outer circumference surface is provided with scrapes the powder groove, and this scrapes the powder groove is the annular groove that multiple tracks laterally arranges.
The cylindrical step of said plug and plug body engagement place are rounded corner; The a plurality of radial protrusions on the said mandrel outer periphery and the junction of its step surface are rounded corner; This rounded corner is R=0.01～5mm.
The junction of a plurality of radial protrusions on the said mandrel outer periphery and the outer circumference surface between adjacent two radial protrusions is a rounded corner; This rounded corner is R=0.01～5mm.
Said plug is provided with the counterbore and the centre bore of connection.
Said upper punch is provided with centre bore, and its top cylindrical is provided with holder, and the external form at its underpart and middle part is a cylindrical structure.
Boss height on the said upper punch or depth of groove are 0.01～3mm, and the shape of cross section of this boss or groove is any in circle, prismatic, square, the round dot.
The utlity model has following advantage and good effect:
The utility model is used for powder metallurgical technique, and can make the direct compression moulding of powdered metallurgical material is outer conical ring blank.According to outer conical ring service condition and powder metallurgical technique characteristics, adopt special mould design, thereby make the outer cone ring structure of compression moulding more reasonable.For example: each concave station on the outer conical ring and centre bore face be two rounded corners of junction vertically, by the compacting tool set straight forming.6 the concave station bottom surfaces on the outer conical ring and the junction of centre bore face are directly formed to rounded corner with compacting tool set.6 concave station bottom surfaces and concave station cylindrical junction are directly formed to rounded corner with compacting tool set.The chamfering of dowel on the outer conical ring and centre bore face junction is used mould straight forming, machining again.The middle external form of outer conical ring blank adopts the compacting tool set straight forming to go out the conical surface, and the upper and lower external form of outer conical ring blank adopts the compacting tool set straight forming to go out the face of cylinder, reduces machine-finish allowance.
3 orifice region on the conical ring finished product will be oozed copper outside, for conveniently oozing the operation of process for copper, outside conical ring blank upper surface ooze copper zone with the upper punch straight forming 3 be used to place ooze copper billet ooze the copper mark, to prevent misplacing the position with oozing copper billet.
In a word, the utlity model has simplified manufacturing technique, operation is simple and reliable, enhances productivity and stock utilization, reduces manufacturing cost greatly, advantage such as is suitable for producing in enormous quantities and the outer cone ring quality produced is stable, machining accuracy is high, strength character is good.
Description of drawings
Fig. 1 is outer conical ring compacting tool set charging sketch map;
Fig. 2 a is an outer conical ring compacting tool set moulding sketch map at the end; Fig. 2 b is the cutaway view of Fig. 2 a along E-E line direction; Fig. 2 c is the cutaway view of Fig. 2 a along F-F line direction;
Fig. 3 is the axial cutaway view of die mould former;
Fig. 4 a is the axial cutaway view of upper punch; Fig. 4 b is the upward view of Fig. 4 a;
Fig. 5 a is the axial cutaway view of bottom punch; Fig. 5 b is the vertical view of Fig. 5 a; Fig. 5 c is the enlarged drawing at I place among Fig. 5 a;
Fig. 6 a is the axial cutaway view of plug; Fig. 6 b is the vertical view of Fig. 6 a;
Fig. 7 a is by the structural representation of the outer conical ring blank of outer conical ring compacting tool set straight forming among Fig. 2 a; Fig. 7 b is the axial cutaway view of Fig. 7 a; Fig. 7 c is the rearview of Fig. 7 a; Fig. 7 d is along the cutaway view of Z-Z line direction among Fig. 7 a.
Description of symbols among the figure:
1, die mould former; 11, the cylindrical die cavity in top; 111, rounded corner; 12, middle part taper die cavity; 121, rounded corner; 122, rounded corner; 13, lower cylindrical shape die cavity; 131, rounded corner; 14, step;
2, upper punch; 21, holder; 22, centre bore; 23, lower surface; 231, boss;
3, plug; 31, radial protrusion; 32, centre bore; 33, counterbore; 34, rounded corner; 35, rounded corner; 36, cylindrical step; 37, rounded corner;
4, bottom punch; 41, base; 42, radial groove; 43, dowel; 44, scrape the powder groove; 45, chamfering;
5, Powdered powdered metallurgical material;
6, outer conical ring blank; 61, concave station; 62, dowel; 63, centre bore face; 64, ooze the copper zone; 65, rounded corner; 66, the conical surface; 67, chamfering; 68, lower surface; 69, upper surface; 70, ooze the copper mark; 71, rounded corner.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
One, the concrete structure of outer conical ring compacting tool set: with reference to Fig. 1-Fig. 6.
The compacting tool set of the outer conical ring of a kind of powder metallurgy comprises die mould former 1, upper punch 2, plug 3 and bottom punch 4, wherein:
(1), die mould former: as shown in Figure 3.
The interior die cavity of this die mould former is divided into the cylindrical die cavity in top 11, middle part taper die cavity 12 and lower cylindrical shape die cavity 13 from top to bottom successively.Wherein:
As shown in Figure 3, the cylindrical die cavity 11 in the top of this die mould former is a rounded corner 121 with the joint of middle part taper die cavity 12, and the radius of this rounded corner 121 is R=0.01～3mm; Cylindrical die cavity in the top of this die mould former and upper punch cylindrical form matched in clearance when assembling.The cylindrical die cavity 11 in the top of this die mould former is a rounded corner 111 with the junction of its upper surface, and the radius of this rounded corner 111 is R=0.01～5mm.
The lower cylindrical shape die cavity 13 of this die mould former is a rounded corner 122 with the joint of middle part taper die cavity 12, and the radius of this rounded corner 122 is R=0.01～3mm; The lower cylindrical shape die cavity of this die mould former and bottom punch cylindrical form matched in clearance when assembling.The lower cylindrical shape die cavity 13 of this die mould former is a rounded corner 113 with the junction of its lower surface, and the radius of this rounded corner 131 is R=0.01～5mm.
The conical surface of this middle part taper die cavity 12 and the angle of its center axially bored line are β=0.1 °～15 °.During the outer cone ring forming, the effect of this middle part taper die cavity is: accomplish the one-shot forming of the male cone (strobilus masculinus) of outer conical ring blank, to reduce machine-finish allowance.
Be provided with a step 14 in the centre position of die mould former external form, be used for die mould former 1 is fixed on the press mould bases.
(2) upper punch: shown in Fig. 4 a, Fig. 4 b.
This upper punch 2 is provided with centre bore 22, and its top cylindrical is provided with holder 21, and the external form at its underpart and middle part is a cylindrical structure.
When compression moulding, as shown in Figure 2, the external form on the interior type of these upper punch 2 bottoms and plug 3 tops is a matched in clearance; The cylindrical die cavity 11 in the external form of these upper punch 2 bottoms and the top of die mould former is a matched in clearance.The cylindrical structure of this upper punch 2 is corresponding setting with the cylindrical die cavity 11 in the top that is arranged on the die mould former, and the two forms matched in clearance during assembling.
23 upper edge circumference evenly are provided with a plurality of boss 231 that the copper mark is oozed in moulding that are used in the lower surface of upper punch 2, and the height of this boss 231 is 0.01～3mm.In like manner, above-mentioned boss 231 also can replace with groove, and the degree of depth of this groove is 0.01～3mm.The shape of cross section of this boss and groove can be Any shape such as circle, prismatic, square, round dot.Boss in the present embodiment or groove 231 are 3, also can be 2～6; Its effect is: 3 orifice region on the conical ring finished product will be oozed copper outside, for conveniently oozing the operation of process for copper, outside the conical ring lower surface ooze copper zone with the upper punch straight forming 3 placements ooze the mark of copper billet, to prevent misplacing the position with oozing copper billet.Above-mentioned mould structure is boss or groove, and the copper mark that oozes of its corresponding compression moulding then is groove or boss.
(3) bottom punch: shown in Fig. 5 a, Fig. 5 b, Fig. 5 c.
The interior die cavity of this bottom punch 4 is to be interconnected by a plurality of radial grooves that are equally spaced along circumference and extend vertically 42 and a plurality of dowels 43 to form, and said radial groove 42 is provided with dowel 43 at interval.The bottom cylindrical of this bottom punch 4 is provided with base 41.On the outer circumference surface on bottom punch top, be provided with and scrape powder groove 44, the annular groove that laterally arranges of multiple tracks just is used to wipe off and is bonded in the powdered metallurgical material on the type in the die mould former.
During assembling, the external form of the interior type of this bottom punch 4 and plug 3 bottoms is a matched in clearance; And the lower cylindrical shape die cavity 13 of the external form of bottom punch 4 and die mould former 1 is a matched in clearance.Specifically, the radial groove 42 on this bottom punch inner peripheral surface is corresponding setting with radial protrusion 31 on the mandrel outer periphery, and the two forms matched in clearance during assembling; Form matched in clearance when circle assembles in this bottom punch cylindrical and the die mould former.
(4) plug: shown in Fig. 6 a, Fig. 6 b.
The middle part of this plug 3 and bottom are the plug body, and equidistance is distributed with a plurality of radial protrusions 31 that extend vertically on its body outer circumference surface; Be provided with a cylindrical step 36 in the plug upper part of body, its cylindrical is a cylindrical structural.Also be provided with the centre bore 32 and counterbore 33 of connection on this plug, be used for plug 3 is fixed on mould bases.
The cylindrical step 36 on plug top is a rounded corner 34 with plug body junction, and this rounded corner radius is R=0.01～5mm, and it is used for the rounded corner of outer 6 concave station bottom surfaces of conical ring of moulding and centre bore face junction.
A plurality of radial protrusions 31 on the mandrel outer periphery are rounded corner 35 with the junction of its step surface, and the radius of this rounded corner is R=0.01～5mm, and it is used for the rounded corner of 6 concave station bottom surfaces and concave station cylindrical junction of the outer conical ring of moulding.
The junction of a plurality of radial protrusions 31 on the mandrel outer periphery and the outer circumference surface between adjacent two radial protrusions 31 is a rounded corner 37; The radius of this rounded corner is R=0.01～5mm, and it is used for 6 concave stations and centre bore face 2 rounded corners of junction vertically on the outer conical ring of straight forming.
Two, the course of work of outer conical ring compacting tool set: with reference to Fig. 1-Fig. 2.
During assembling, be installed in die mould former 1, upper punch 2, plug 3 and bottom punch 4 on the mould bases, mould bases is fixed on the forcing press.And make the interior die cavity center of plug 3 through bottom punch 4, and the top part of plug will be positioned at more than the upper surface of bottom punch 4; Simultaneously, bottom punch 4 is again through the lower cylindrical shape die cavity center of die mould former 1.Thereby between the external form of the interior type of die mould former and plug, form the interior die cavity of an annular; Matched in clearance is formed at the external form top of the interior type bottom of die cavity and bottom punch 4 in being somebody's turn to do, and can be free to slide each other.During compression moulding, matched in clearance is formed at the interior type top of the external form bottom of this upper punch 2 and die mould former, can be free to slide each other.After assembling is accomplished, between external form, bottom punch 4 and the upper punch 2 of the interior type of die mould former and plug 3, form a type in it and outside the external form of conical ring blank akin in die cavity, the die cavity of promptly feeding, as shown in Figure 2.
As shown in Figure 1, before the charging, upper punch 2 be positioned at die mould former 1 directly over, the bottom of this upper punch 2 is uncovered corresponding with the upper end of above-mentioned charging die cavity.After in above-mentioned charging die cavity, filling up pulverous powdered metallurgical material 5, descending and its underpart gets in the cylindrical die cavity 11 on the die mould former upper punch 2 with the forcing press top shoe; The regulation pressure lower compression powdered metallurgical material to assigned position; As shown in Figure 2.Upper punch 2 is up then, and die mould former 1 is descending with plug 3, and the outer conical ring blank 6 after the moulding is deviate from from die mould former 1, accomplishes a production process.Move in circles successively.
What Fig. 7 a, Fig. 7 b, Fig. 7 c and Fig. 7 d were represented is the structural representation by the outer conical ring blank of this compacting tool set straight forming.Said outer conical ring blank 6 comprises body, is arranged on a plurality of concave stations 61 and a plurality of dowel 62 on the body lower surface 68 along even distribution of same circumference and interval, is 6 concave stations 61 and 6 dowels 62 in the present embodiment; The inner peripheral surface of all dowels and concave station is same periphery.The cylindrical that is somebody's turn to do outer conical ring blank is to be formed by connecting the conical surface at the face of cylinder, top and middle part and the face of cylinder of bottom; The height on its face of cylinder, top is H3=0.01～5mm; The height on the face of cylinder, its underpart is H2=0.01～5mm; Angle between the center conical surface and the centre bore axis is α=0.1 °～15 °, shown in Fig. 7 b.Wherein:
The junction of 6 concave station bottom surfaces and its centre bore face 63 all is the rounded corner by the compacting tool set straight forming; 6 concave station bottom surfaces and concave station cylindrical junction are directly formed to rounded corner 65 with compacting tool set; Each concave station 61 and centre bore face 2 angles of junction vertically are the rounded corner by the compacting tool set straight forming.6 dowels 62 on the outer conical ring are the chamfering 67 by the compacting tool set straight forming with the junction of centre bore face 63, and this chamfering 67 is positioned on the upper surface 68 of outer conical ring.The middle external form of outer conical ring blank 6 is the conical surface 66 by the compacting tool set straight forming, and the external form of upper and lower then all is the face of cylinder by the compacting tool set straight forming.
Outside on the upper surface 69 of conical ring, by the compacting tool set straight forming 3 pits or boss, copper billet misplaces the position oozes copper mark 70 as preventing to ooze; Thereby can form 3 places outside on the conical ring and ooze copper zone 64 through oozing process for copper.
And outer conical ring blank 6 needs through turning the end face that oozes the copper mark arranged, the turning male cone (strobilus masculinus), and process 3 holes and Hole chamfering thereof with the lock pin interference fit oozing the copper zone, just can become satisfactory outer conical ring finished product at last.
What the accompanying drawing of the utility model was represented is to be used for moulding to have 6 concave stations, 6 dowels and 3 outer conical ring compacting tool sets that ooze the copper mark.Compacting tool set has 4 concave stations, 4 dowels and 3 and oozes copper mark or 8 concave stations, 8 dowels and 3 outer conical rings that ooze the copper mark if will be used for moulding; That is to say; Concave station, dowel and the quantity of oozing the copper mark are selected between 2-10 in addition on the male-tapered, will do the correspondence adjustment to the compacting tool set structure according to the concave station on the outer conical ring, dowel and the quantity of oozing the copper mark.Specifically, only need the following compacting tool set structure of change to get final product, that is: the radial groove on the die cavity and number and the boss on the upper punch lower surface or the number of groove of dowel in the number of the radial protrusion on the cylindrical of plug bottom, the bottom punch.
Claims (12)
1. the compacting tool set of the outer conical ring of powder metallurgy is characterized in that,
Comprise die mould former (1), plug (3), upper punch (2) and bottom punch (4), wherein:
Said die mould former (1), die cavity is divided into the cylindrical die cavity in top (11), middle part taper die cavity (12) and lower cylindrical shape die cavity (13) from top to bottom successively in it;
Said plug (3), equidistance is distributed with a plurality of radial protrusions (31) that extend vertically on the outer circumference surface of its body; Be provided with a cylindrical step (36) in the plug upper part of body;
Said bottom punch (4), die cavity is to be interconnected by a plurality of radial grooves (42) that are equally spaced along circumference and extend vertically and a plurality of dowel (43) to form in it, this radial groove (42) is provided with dowel (43) at interval; The corresponding setting of radial protrusion (31) on radial groove on the bottom punch inner peripheral surface (42) and the mandrel outer periphery; The corresponding setting of lower cylindrical shape die cavity (13) of the external form of bottom punch (4) and die mould former (1);
Said upper punch (2), the interior type of its underpart is corresponding setting with the external form on plug (3) top, the external form of its underpart is corresponding setting with the cylindrical die cavity in the top of die mould former (11); Circumference evenly is provided with a plurality of boss or groove (231) in the upper edge, lower surface (23) of upper punch (2);
During assembling, the interior type of said die mould former and form the interior die cavity of an annular in the die mould former between the plug external form at die cavity center, the top formation matched in clearance of the bottom of die cavity and bottom punch (4) in this; During compression moulding, upper punch (2) is to lower slider, and its underpart gets into the top of above-mentioned inner chamber type and forms matched in clearance; The die cavity that is positioned between external form, bottom punch (4) and the upper punch (2) of the type of die mould former and plug (3) is close with the external form of outer conical ring blank (6).
2. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 1 is characterized in that the middle part taper die cavity (12) of said die mould former (1) is the conical surface, angle β=0.1 between this conical surface and its center axially bored line °～15 °; Cylindrical die cavity in said top and lower cylindrical shape die cavity are the face of cylinder; The joint of the cylindrical die cavity of the middle part taper die cavity of said die mould former and its top, lower cylindrical shape die cavity is rounded corner (121,122), and this rounded corner (121,122) is R=0.01～3mm.
3. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 2 is characterized in that, the cylindrical die cavity in the top of said die mould former, lower cylindrical shape die cavity are rounded corner (111,131) with the junction of its upper surface, lower surface respectively; This rounded corner (111,113) is R=0.01～5mm.
4. like the compacting tool set of claim 1 or the outer conical ring of 2 or 3 described a kind of powder metallurgy, it is characterized in that, be provided with a step (14) in the middle of the external form of said die mould former (1).
5. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 1; It is characterized in that the dowel (43) on the said bottom punch (4) and the junction of centre bore face are chamfering (45), its chamfering value is γ=1 °～80 °; L=0.01～2mm, H1=0～1mm.
6. like the compacting tool set of claim 1 or the outer conical ring of 5 described a kind of powder metallurgy, it is characterized in that the bottom cylindrical of said bottom punch (4) is provided with base (41).
7. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 6 is characterized in that the outer circumference surface of said bottom punch (4) is provided with scrapes powder groove (44), and this scrapes the powder groove is the annular groove that multiple tracks laterally arranges.
8. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 1 is characterized in that the cylindrical step (36) of said plug (3) is rounded corner (34) with plug body engagement place; A plurality of radial protrusions (31) on the said mandrel outer periphery are rounded corner (35) with the junction of its step surface; This rounded corner (34,35) is R=0.01～5mm.
9. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 8 is characterized in that, a plurality of radial protrusions (31) on the said mandrel outer periphery and the junction that is positioned at the outer circumference surface between adjacent two radial protrusions (31) are rounded corner (37); This rounded corner (37) is R=0.01～5mm.
10. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 9 is characterized in that said plug (3) is provided with the counterbore (33) and the centre bore (32) of connection.
11. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 1 is characterized in that said upper punch (2) is provided with centre bore (22), its top cylindrical is provided with holder (21), and the external form at its underpart and middle part is a cylindrical structure.
12. the compacting tool set of the outer conical ring of a kind of powder metallurgy as claimed in claim 11; It is characterized in that; Boss height on the said upper punch (2) or depth of groove are 0.01～3mm, and the shape of cross section of this boss or groove (231) is any in circle, prismatic, square, the round dot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120196114XU CN202114259U (en) | 2011-05-31 | 2011-05-31 | Powder metallurgy outer conical ring compacting die |
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| CN201120196114XU CN202114259U (en) | 2011-05-31 | 2011-05-31 | Powder metallurgy outer conical ring compacting die |
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| CN202114259U true CN202114259U (en) | 2012-01-18 |
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2011
- 2011-05-31 CN CN201120196114XU patent/CN202114259U/en not_active Expired - Fee Related
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| CN103706787B (en) * | 2012-09-30 | 2017-02-15 | 自贡硬质合金有限责任公司 | Die and automatic forming press and forming method thereof |
| CN103706787A (en) * | 2012-09-30 | 2014-04-09 | 自贡硬质合金有限责任公司 | Die and automatic forming press and forming method thereof |
| CN103331444B (en) * | 2013-07-05 | 2015-09-30 | 益阳市新纪元粉末冶金有限公司 | Sintered metal product press-moulding die and application and shaping and demoulding method |
| CN103331444A (en) * | 2013-07-05 | 2013-10-02 | 益阳市新纪元粉末冶金有限公司 | Compression forming mold for sintered metal product, application thereof and forming mold release method |
| CN105081316A (en) * | 2015-09-01 | 2015-11-25 | 中国兵器科学研究院宁波分院 | Special mold for pseudo alloy prefabricated member and pseudo alloy prefabricated member preparing method adopting same |
| CN105478757A (en) * | 2016-01-07 | 2016-04-13 | 十堰同创传动技术有限公司 | Mold for friction layer of single-cone blocker ring and molding method |
| CN106079549A (en) * | 2016-08-16 | 2016-11-09 | 合肥波林新材料股份有限公司 | A kind of compound mould |
| CN106079549B (en) * | 2016-08-16 | 2017-10-03 | 合肥波林新材料股份有限公司 | A kind of compound mould |
| CN110090951A (en) * | 2018-01-28 | 2019-08-06 | 上海奇谋能源技术开发有限公司 | A kind of briquetting process of piece or/and powder |
| CN110090951B (en) * | 2018-01-28 | 2021-08-27 | 上海奇谋能源技术开发有限公司 | Compression molding method of block or/and powder |
| CN113043434A (en) * | 2020-12-31 | 2021-06-29 | 中核北方核燃料元件有限公司 | Central hole-opening core block forming die |
| CN116638086A (en) * | 2023-06-21 | 2023-08-25 | 浙江中科磁业股份有限公司 | Neodymium iron boron green compact device and green compact method |
| CN116638086B (en) * | 2023-06-21 | 2023-11-10 | 浙江中科磁业股份有限公司 | Neodymium iron boron green compact device and green compact method |
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