This standard defines the common terms related to die casting moulds and is applicable to the understanding and use of common terms related to die casting moulds. GB/T 8847-2003 Die casting mould terminology GB/T8847-2003 standard download decompression password: www.bzxz.net

This standard replaces GB/T8847-1988 "Terms for Pressure Casting Dies". The main changes of this standard compared with GB/T8847-1988 are as follows: According to industry practice, the standard name is changed to "Terms for Die Casting Dies"; GB/T8847-2003
---The standard format has been modified according to the requirements of GB/T1.1-2000, and a preface, Chinese index and English index have been added; the term structure has been reclassified and arranged to make it more reasonable; - 23 terms have been added, with a total of 84 term entries; corresponding legends have been added.
This standard is proposed by the China Electrical Equipment Industry Association. This standard is under the jurisdiction of the National Technical Committee for Die Standardization (CSBTS/TC33). The drafting units of this standard are: Guilin Electrical Science Research Institute, Guangzhou Cavity Die Factory, Shanghai Pierburg Nonferrous Parts Co., Ltd., Chengdu Xingguang Die Casting Industry Co., Ltd., and Dongfeng Technology Automotive Brake System Co., Ltd. The main drafters of this standard are: Weng Shizhen, Liao Hongyi, Li Hongying, Cai Zijin, Zhang Liangen, Yang Zhaoling, Huang Zhilu, Feng Bochun. This standard was first issued in February 1988 and revised for the first time in 2003. 1 Scope
This standard defines the common terms related to die casting dies. This standard applies to the understanding and use of common terms for die casting dies. 2 General terms
Die casting
GB/T 8847—2003
A casting method in which molten alloy is filled into the mold cavity under high pressure and high speed conditions and cooled and solidified under high pressure. 2.2
Die-casting die
The mold used to form castings in the die casting molding process. 2.3
Fixed die
The part of the mold fixed to the fixed die mounting plate of the die casting machine. 2.4
moving die
The part of the die that moves with the opening and closing of the die mounting plate of the die casting machine. 2.5
cavity
The cavity used to fill the molten alloy and form the casting after the die is closed (see 13 in Figure 1). 2.6
parting line
The contact surface on the die that can be separated from the casting and the gating system solidified material. 2.7
project area
The sum of the projected areas of the die cavity, gating system and overflow system in the direction perpendicular to the clamping force. 2.8
shrinkage
The ratio of the difference between the corresponding linear dimensions of the die cavity and the casting to the corresponding linear dimensions of the die cavity at room temperature. 2.9
Locking forcelockingforce
The force applied to the mold to ensure that the movable and fixed molds are tightly closed to each other during the filling process. 2.10
Pressure centre
pressure centre
The point of action of the resultant pressure force transmitted to the mold by the molten alloy in the direction parallel to the locking force. 2.11
filling velocity
Filling speed
The linear velocity of the molten alloy passing through the gate under pressure. 1
GB/T 8847-—2003
Injection speed
The linear velocity of the injection punch.
Injection pressure
The pressure per unit area of ​​the molten alloy applied by the injection punch at the end of filling. 2.14
Draft
The slope designed on the mold cavity wall along the demoulding or extraction direction in order to smoothly demould the casting. 2. 15
die shut height
The total height of the mold in the closed state. 2.16
E maximum opening daylight
Maximum opening distance
The maximum distance that can be separated between the moving die and the fixed die mounting plate of the die casting. 2.17
Stripper distance
The distance required to separate the moving and fixed dies to remove the casting and the solidified material of the pouring system. 2.18
Casting system
casting system
The channel for the molten alloy to fill the mold cavity under pressure, including: sprue, runner and ingate. 2.19
Sprue
The passage from the inlet of the mold gating system to the runner (see 16 in Figure 1). 2.20
Runner
The passage from the end of the sprue of the mold gating system to the ingates (see 15 in Figure 1). 2.21
ingates
The entrance of the molten alloy into the mold cavity (see 14 in Figure 1). 2.22
overflow well
Overflow groove
A groove in the mold used to drain overflow, contain oxides and cold molten alloy, or to accumulate molten alloy to increase the local temperature of the mold. 2.23
Air yent
Air flow groove set to allow the gas in the cavity to escape from the mold during the die casting process. 3 Parts Terminology
3.1 Supporting parts
Clamping plate of the fixed halfThe plate that mounts the fixed die on the fixed die mounting plate of the die casting machine (see 10 in Figure 1). 3. 1.2
Clamping plate of the moving halfThe plate that mounts the moving die on the moving die mounting plate of the die casting machine (see 1 in Figure 1). 2
Bolster of the fixed halfThe plate that fixes the fixed die insert, core, guide column or guide sleeve and other parts (see 9 in Figure 1). 3.1.4
Bolster of the moving halfThe plate that fixes the moving die insert, core, guide column or guide sleeve and other parts (see 4 in Figure 1). 3.1.5
Support plate supportplat
GB/T 8847--2003
A plate that bears the molding pressure and prevents the displacement of movable mold inserts, cores, guide pillars or guide sleeves (see 3 in Figure 1). 3.1.6
Space block
A block-shaped part that forms the required spatial position of the ejection mechanism and adjusts the mold closing height (see 2 in Figure 1). 3.1.7
Support pillar support pillar
A cylindrical part that is set to support the movable mold to enhance the rigidity of the movable mold (see 1 in Figure 2). 3.2Molding parts
A convex part on the inner surface of the molded casting.
movable core
A core that can be displaced to complete the core pulling and resetting actions with the help of the core pulling mechanism (see 12 in Figure 1). 3.2.3
Threaded plug
Parts for molding internal threads of castings.
Threaded ring
Parts for molding external threads of castings.
Die insert
Partially molded parts manufactured separately from the main part and embedded in the main part. 3.2.6
Die insert of the fixed half is fixed in the fixed die plate and constitutes the main part of the mold cavity (see 11 in Figure 1). 3.2.7
Die insert of the moving half is fixed in the moving die plate and constitutes the main part of the mold cavity (see 20 in Figure 1). 3.2.8
Movable insert
A molded part that can be removed from the casting only after it is ejected from the mold together with the casting according to the process and structural requirements. 3.2.9
Split
According to the process and structural requirements, several separately manufactured parts are assembled to form a cavity or core. 3
GB/T 8847-—2003
3.3 Core pulling parts
Angle pin
A cylindrical part that is inclined in the direction of mold clamping and makes the slider move relative to the mold as the mold opens and closes (see 7 in Figure 1). 3.3.2
angular cam
A rectangular cross-section curved rod part that allows the slider to move relative to the mold as the mold opens and closes. 3.3.3
Slide
A part that can slide along the guide structure to drive the movable core or insert to complete the core pulling and reset action (see 6 in Figure 1). 3.3.4
Core slide
Core slide
A molded part in which the core and the slider are made into one piece. 3.3.5
angled sliding split
An oblique sliding split
A block that slides by cooperating with the inclined surface and often has the functions of molding, pushing out and core pulling. 3.3.6
Fingerguideplate
A plate-shaped part with an oblique guide groove to enable the slider to move with the groove to pull the core and reset. 3.3.7
Stop blockbzxz.net
A block-shaped part that limits the final position of the slider after core pulling (see 5 in Figure 1). 3.3.8
Wedge block
A block-shaped part with a wedge angle that wedges the slider during mold closing (see 8 in Figure 1). 3.3.9
Slide guide plate
A plate that cooperates with the guide surface of the slider and plays a guiding role. 3.3.10
Wear pad
A hardened plate or a plate embedded with lubricating material that is embedded on the sliding surface of the relatively moving parts. 3.4 Parts of the pouring system, overflow system, and exhaust system 3.4.1
Sprue bushing
A round sleeve-shaped part that forms a straight runner (see 17 in Figure 1). 3.4.2
Sprue spreader
A conical part installed opposite to the sprue to divert the molten alloy and change the flow direction smoothly. 3.4.3
Baffle
A part that can change the flow direction of the molten alloy smoothly in the mold pouring system (see 19 in Figure 1). 3.4.4
Venting plug
A metal plug with exhaust micropores or grooves to allow the gas in the cavity to be discharged from the mold during the die casting process. 4
Venting plate
A plate with exhaust grooves to allow the gas in the cavity to be discharged from the mold during the die casting process. 3.5Guide part
Guide pillar
A cylindrical guide part that cooperates with the guide sleeve to determine the relative position of the movable and fixed molds (see 21 in Figure 1). 3.5.2
headed guide pillar
A guide pillar with an axial positioning step, the basic dimensions of the fixed section and the guide section are the same, but the tolerance bands are different. 3.5.3
shouldered guide pillarA guide pillar with an axial positioning step, the basic dimensions of the fixed section are larger than the basic dimensions of the guide section. 3.5.4
squareguidepillar
A guide pillar with a rectangular working section.
Ejector guidepillar
A cylindrical guide part used in the ejector guide sleeve for the ejector mechanism (see 22 in Figure 1). 3.5.6
Guide bush
A circular sleeve-shaped guide part that cooperates with the guide pillar to determine the relative position of the movable and fixed molds (see 18 in Figure 1). 3.5.7
straight guide bush
straight guide bush
guide bush without axial locating step.
headed guide bush
guide bush with axial locating step.
ejector guide bush
a circular sleeve-shaped guide part used for ejection mechanism in cooperation with ejector guide post (see 23 in Figure 1). 3.5.10
guide plate
a guide plate part forming a corresponding sliding pair with a rectangular guide post. 3.6 ejection and reset parts
ejector pin
a rod used for ejecting condensate from castings, gating systems and overflow systems (see 24 in Figure 1). 3.6.2
ejector pin with a cylindrical head an ejector pin with a cylindrical fixed step.
Shouldered ejector pinA ejector pin with a larger diameter of the non-working section to improve axial rigidity. 3.6.4
Flat ejector pin
GB/T 8847-2003
GB/T8847—2003
A ejector pin with a rectangular working section.
Forming ejector pin
A ejector pin with the end face in the shape required for the casting.
Ejector sleeve
A tubular part used to eject castings.
Shouldered ejector sleeve
Shouldered ejector sleeve
A ejector pin with a larger diameter of the non-working section to improve axial rigidity. 3.6.8
Ejector pad
Plays a partial molding role in the cavity and ejects the block-shaped part of the casting when the mold is opened. 3.6.9
stripping plate
a plate for ejecting castings.
ejector retaining plate
a plate for fixing ejection, reset and guide parts (see 28 in Figure 1). 3.6.11
ejector plate
a plate for supporting ejection and reset parts and transmitting the ejection force of the machine tool (see 27 in Figure 1). 3.6.12
stoppin
a part for limiting the reset position of the ejection mechanism (see 26 in Figure 1). 3.6.13
return pin
a rod for resetting the ejection mechanism with the help of the closing action of the mold (see 25 in Figure 1). 3.6.14
Ejector tie rod
A rod that connects the ejector plate and the ejector fixing plate and transmits the thrust. 3.6.15
Ejector plate tie rodA rod that is fixed to the ejector plate and transmits the ejection force of the machine tool (see 2 in Figure 2). 3.6.16
Ejector plate washer
Ejector plate washer
A washer that is set between the ejector plate and the ejector fixing plate and has the same height as the ejector fixing step. 3.7 Other parts
Locating element
A part used for precise positioning of the movable and fixed molds. 3. 7. 2
Cooling ring
cooling ring
A ring-shaped cooling water jacket set outside the sprue bushing (see 3 in Figure 2). 3.7.3
Sprue puller pin
A rod with a groove or other shape on the head for pulling out the slurry or casting. 6
Plugbaffle
A plate set in the cooling channel of the mold to change the flow direction of cooling water 28
1Moving mold base plate;
2A cushion block;
3---Support plate;
4Moving mold sleeve plate;
5A limit block;
6A slider;
7--Oblique pin;
8--Wedge block;
9-Fixed mold sleeve plate;
10Fixed mold base plate;
11-Fixed mold insert;
12Movable core
13--Mold cavity:| |tt||14--Ingate;
Figure 1 Die-casting mold structure
15--Horizontal runner;
16 Straight runner;
17-Gate bushing;
18--Guide bushing;
19--·Guide block;
20 Moving mold insert;
21-Guide column;
22---Push plate guide column;
23-Push plate guide sleeve;
24-Push rod;
25 Reset rod:
26-Limiting pin;
27-Push plate;
28.-Push rod fixing plate.
GB/T8847—2003
GB/T 8847—2003
1: Support column;
2-Push plate connected to push rod;
3-Cooling ring
Figure 2 Structure of die casting mold
References
GB/T8847—2003
Tools for Moulding-Components of compression and injection moulds[111SO12165---2000
and diecasting dies-Terms and Symbols9
GB/T 8847—2003
Term name
Closing height
Flat push rod
Forming push rod
Filling speed
Shoulder guide pin·
Shoulder push rod·
Shoulder push tube
Head guide sleeve·
Head guide pin
Guide block
Guide sleeve·
Guide pin…
Fixed mold sleeve·
Fixed mold insert
Fixed mold seat plate·
Positioning element·|| tt||movable mold,
movable mold sleeve
movable mold insert
movable mold seat plate
diverter cone·
parting surface
reset rod
flow partition plate…
cross runner
slider·
slider guide·
movable insert (block)
movable core·
gate bushing
pouring system
rectangular guide column·
pulling rod
cooling ring·
Connecting push rod
Chinese index
Entry number
Term name
Threaded ring,
Threaded core
Wear-resistant plate
Ingate
Vent plate·
Vent groove
Vent plug·
Block…
Shrinkage rate
Clamping force
Projected area
Push plate guide sleeve
Push plate guide column
Push plate gasket
Push plate connecting push rod||t t||Push rod·
Push rod fixing plate
Push tube·
Push plate,
Push block…
Demolding distance
Demolding slope
Limiting pin
Limiting block·
Wedge block·
Channel guide plate·
Channel slider
Core slider·
Pressure center
Pressure casting
Injection pressure ratio
Injection speed
Entry number
.... 2.8
Term name
Die casting mold
Overflow groove
Cylindrical head push rod
Support plate·
Entry number
.............
Term name
Support column·
Straight guide sleeve
Straight sprue
Maximum opening distance
GB/T8847—2003
Entry number
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