CN105881824B - Automobile storage box injection mold - Google Patents

Automobile storage box injection mold Download PDF

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Publication number
CN105881824B
CN105881824B CN201610442905.3A CN201610442905A CN105881824B CN 105881824 B CN105881824 B CN 105881824B CN 201610442905 A CN201610442905 A CN 201610442905A CN 105881824 B CN105881824 B CN 105881824B
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China
Prior art keywords
injection mold
swage
temperature
storage box
iron
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CN201610442905.3A
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Chinese (zh)
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CN105881824A (en
Inventor
黄悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Taizhou Meiduo Mould Co Ltd
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Zhejiang Taizhou Meiduo Mould Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76006—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/7604—Temperature

Abstract

The present invention relates to a kind of automobile storage box injection mold, belong to the technical field of injection mold.The automobile storage box injection mold of the present invention, including pattern group and injection moulding apparatus, the pattern group are made up of top swage and anvil swage, and top swage and the anvil swage matched moulds forms die cavity；The exhaust outlet for being connected to the die cavity is offered on the anvil swage, the exhaust outlet is connected to vavuum pump；The sprue for being connected to the die cavity is offered on the top swage；Connected between the injection moulding apparatus and the sprue by plasticizing charging barrel.The injection mold of the present invention accurately can control and adjust the temperature and pressure of plasticizing material, the defects of advantageously reducing shrinkage cavity, raising yield rate；And the pattern of the present invention is good to the wear resistance and erosion resisting of the plasticizing material comprising filler, service life is high.

Description

Automobile storage box injection mold
Technical field
The present invention relates to the technical field of injection mold, it is more particularly related to which a kind of automobile storage box is noted Mould.
Background technology
With the continuous lifting that people are required vehicle operation performance, the requirement of automobile appearance and upholstery is also increasingly Height, wherein automobile storage box are mouldings common in in-car decorations structure.Automobile storage box has in irregular shape, peripheral structure The characteristics of complicated, there is also the characteristics of complicated, optional gate location is few for its mould.Therefore, automobile storage box injection mould Generally there is the defects of core rod low intensity, short life in tool, and the qualification rate of its product is not high.
The content of the invention
In order to solve above-mentioned technical problem of the prior art, it is an object of the invention to provide a kind of automobile storage box use Injection mold.
In order to realize foregoing invention purpose, present invention employs following technical scheme：
A kind of automobile storage box injection mold, including pattern group and injection moulding apparatus, the pattern group is by top swage with Pattern forms, it is characterised in that：Top swage and the anvil swage matched moulds forms die cavity；Offered on the anvil swage and be connected to institute The exhaust outlet of die cavity is stated, the exhaust outlet is connected to vavuum pump；Offered on the top swage and be connected to directly pouring for the die cavity Road；Connected between the injection moulding apparatus and the sprue by plasticizing charging barrel.
Wherein, the injection mold also includes controller and temperature sensor, and the temperature sensor is arranged on described straight Near running channel；The controller is respectively connecting to the injection moulding apparatus, temperature sensor and vavuum pump, and the controller is used to set Put and adjust the temperature and pressure that feed liquid is plastified in the injection moulding apparatus, and the suction of the control vavuum pump.
Wherein, the injection mold is Cast Iron Die made of spheroidal graphite cast-iron.The spheroidal graphite cast-iron contains 3.6~ 3.9wt% C, 3.0~4.2wt% Si, 0.9~1.5wt% Mn, 0.02~0.10wt% Mo, 0.65~ 0.85wt% Cu, 0.05~0.15wt% Ti, 0.01~0.05wt% Zr, 0.06~0.10wt% Ba, Below 0.10wt% P, below 0.05wt% S, and the Fe of surplus and inevitable impurity.The content of the Mo is preferred For 0.02~0.08wt% Mo.
Wherein, plasma treatment is at least carried out on the part surface of the Cast Iron Die.
Compared with prior art, automobile storage box of the present invention is had the advantages that with injection mold：
The injection mold of the present invention accurately can control and adjust the temperature and pressure of plasticizing material, advantageously reduce shrinkage cavity etc. Defect, improve yield rate；And the pattern of the present invention is good to the wear resistance and erosion resisting of the plasticizing material comprising filler, use Life-span is high.
Brief description of the drawings
Fig. 1 is the structural representation of the automobile storage box injection mold of the present invention.
Fig. 2 is the corrosion current of the spheroidal graphite cast-iron sample of example 3 with the change of [N]/[S] mol ratio.
Fig. 3 is the corrosion current of the spheroidal graphite cast-iron sample of comparative example 3 with the change of [N]/[S] mol ratio.
Embodiment
Automobile storage box of the present invention is further elaborated with injection mold below with reference to specific embodiment, To help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the invention, technical scheme.
Embodiment 1
As shown in figure 1, the automobile storage box injection mold of the present embodiment, including pattern group 30 and injection moulding apparatus 10.Institute State pattern group 30 to be made up of top swage 31 and anvil swage 32, top swage 31 and anvil swage 32 matched moulds forms die cavity 33.It is described The exhaust outlet 34 for being connected to the die cavity 33 is offered on anvil swage, the exhaust outlet 34 is connected to vavuum pump 40.The mo(u)ld top half The sprue 35 for being connected to the die cavity 33 is offered on mould 31；Pass through modeling between the injection moulding apparatus 10 and the sprue 35 Material cylinder 20 connects.The injection mold also includes controller 50 and temperature sensor 60, and the temperature sensor 60 is arranged on Near the sprue 35；The controller 50 is respectively connecting to the injection moulding apparatus 10, temperature sensor 60 and vavuum pump 40, The controller 50 is used to set and adjust the temperature and pressure that feed liquid is plastified in the injection moulding apparatus 10, and controls described true The suction of empty pump 40.The injection mold of the present embodiment accurately can control and adjust the temperature and pressure of plasticizing material, favorably In surface defects such as internal flaw and flash such as the shrinkage cavities for reducing product, be advantageous to improve yield rate.
As injection mold, in order to ensure its service life and improve the surface quality of product, it needs to have concurrently well Intensity and toughness, and surface needs to have high rigidity and corrosion resistance concurrently, especially can resist containing free chloro ion and contain The erosion and abrasion of the injection molding material of inorganic filler.The injection mold is made up of spheroidal graphite cast-iron in the present embodiment.The spheroidal graphite Cast iron contain 3.6~3.9wt% C, 3.0~4.2wt% Si, 0.9~1.5wt% Mn, 0.02~0.10wt% Mo, 0.65~0.85wt% Cu, 0.05~0.15wt% Ti, 0.01~0.05wt% Zr, 0.06~0.10wt% Ba, Below 0.10wt% P, below 0.05wt% S, and the Fe of surplus and inevitable impurity.The content of the Mo is preferred For 0.02~0.08wt% Mo.Wherein, C is the important element to form graphite cast iron, by C content 3.6~3.9wt%'s In the range of advantageously form spherical graphite cast iron, if C content is more than 3.9wt%, it will cause processability to reduce, and such as Fruit C content is less than 3.6wt%, it will causes elevated temperature strength insufficient.Si addition is not only to be formed necessary to spheroidal graphite cast-iron, And Si addition is also beneficial to improve the heat resistance and oxidative resistance of spheroidal graphite cast-iron., will when Si content is less than 3.0wt% The high temperature strength and heatproof oxidation performance that cast iron can be caused significantly reduce, and when Si content is more than 4.2wt%, the iron of matrix Ferritic will mutually become fragile, and cause machinability to be deteriorated.Mn and S combine to form MnS, are beneficial desulfurizing agents, and containing Mn Amount scope is limited in the range of 0.9~1.5wt%, can be improved the elevated temperature strength of spheroidal graphite cast-iron and significantly not affected it and prolong Malleability.The price that Mo addition can improve elevated temperature strength but Mo is high, and adding can cause processability to reduce, thus by its Ceiling restriction is in below 0.10wt%, preferably below 0.08wt%；In order to improve intensity, and resistance to elevated temperatures, wherein containing Have 0.65~0.85wt% Cu, 0.05~0.15wt% Ti, and 0.01~0.05wt% Zr, especially as Cu, Ti and Zr weight percentage meets：During 4.2≤[Cu]/([Ti]+2 [Zr])≤5.0, good heat resistance and resistance to can have both been obtained Oxidisability, and high-strength and good processability can also be had concurrently.P and S is the impurity element in cast iron, when P content exceedes During 0.1wt%, embrittlement easily occurs, thermal stress will likely result in brittle cracking when S content is more than 0.05wt%.The ball The preparation method of black cast iron is as follows：The raw material prepared is subjected to melting using induction furnace, smelting temperature is 1550~1580 DEG C, will Nodulizer (Fe-Si-Ba alloys) is placed on ladle bottom, molten iron convection current is carried out spheroidising, and the time of spheroidising is preferred For 3~5 minutes；Then the cast iron obtained after cast is furnace-cooled to 650~750 in 750-850 DEG C of stove inside holding 2.0~3.0 hours DEG C insulation 3.0~5.0 hours, be air-cooled to room temperature.It following present the composition of the spheroidal graphite cast-iron as example and comparative example, such as table Shown in 1.
Table 1wt%
C Si Mn Mo Cu Ti Zr Ba P S Cr
Example 1 3.87 3.38 0.95 0.03 0.85 0.10 0.02 0.06 0.038 0.005 —
Example 2 3.81 3.75 1.18 0.05 0.80 0.09 0.04 0.06 0.042 0.012 —
Example 3 3.72 4.01 1.09 0.06 0.75 0.12 0.03 0.08 0.028 0.006 —
Example 4 3.66 4.09 1.23 0.08 0.70 0.10 0.03 0.08 0.030 0.005 —
Example 5 3.61 4.17 1.42 0.08 0.65 0.05 0.05 0.08 0.037 0.015 —
Comparative example 1 3.72 4.01 1.09 0.06 0.75 0.18 — 0.08 0.028 0.005 —
Comparative example 2 3.72 4.01 1.09 0.06 0.75 — 0.09 0.08 0.030 0.006 —
Comparative example 3 3.72 4.01 1.09 0.06 — 0.12 0.03 0.08 0.028 0.006 0.75
Comparative example 4 3.81 3.75 1.18 0.05 0.80 0.12 0.04 0.06 0.042 0.012 —
Comparative example 5 3.81 3.75 1.18 0.05 0.80 0.05 0.05 0.06 0.042 0.012 —
Example 1~5, the tension for the cast iron sample that comparative example 1~5 obtains are measured under conditions of room temperature and 500 DEG C respectively Intensity and elongation, above-mentioned measurement result are as shown in table 2.
Table 2
In order to improve the wear resistance of Cast Iron Die and oxidative resistance, the Cast Iron Die also needs to carry out table Face modification.Preferably, the Cast Iron Die carries out plasma treatment, the plasma treatment in a vacuum chamber Temperature be 400~450 DEG C, plasma power is 2.0~3.0kW, H2S flows are 20~25sccm, N2Flow be 50~ 100sccm, processing time are 25~30min, and 80~100 μm of hardened layer is formed after surface modification treatment, and HRC hardness can reach To 50~53, coefficient of friction is maintained at 0.08~0.10 under conditions of oil lubrication.After processing, at the 50um of surface [N]/ Between the mol ratio of [S] is 3~6.In the solution for the NaCl that concentration is 1mol/L, the self-corrosion electricity of spheroidal graphite cast-iron sample is measured The change of the mol ratio with [N]/[S] is flowed, its result (is provided, other examples tool for the ease of comparing with example 3 as described in Figure 2 Have essentially identical result), Fig. 3 gives the corrosion current of the spheroidal graphite cast-iron sample of comparative example 3 with [N]/[S] mol ratio Change.As can be seen here, for example 1~5 spheroidal graphite cast-iron after surface modification treatment, have concurrently good wear resistance and Corrosion resistance, the erosion and abrasion of the injection molding material containing free chloro ion and containing inorganic filler can be resisted.
For the ordinary skill in the art, simply the present invention is exemplarily described for specific embodiment, Obviously present invention specific implementation is not subject to the restrictions described above, and is entered as long as employing the inventive concept and technical scheme of the present invention The improvement of capable various unsubstantialities, or it is not improved by the present invention design and technical scheme directly apply to other occasions , within protection scope of the present invention.

Claims (2)

1. a kind of automobile storage box injection mold, including pattern group and injection moulding apparatus, the pattern group is by top swage and mo(u)ld bottom half Mould forms, it is characterised in that：Top swage and the anvil swage matched moulds forms die cavity；Offered on the anvil swage described in being connected to The exhaust outlet of die cavity, the exhaust outlet are connected to vavuum pump；The sprue for being connected to the die cavity is offered on the top swage； Connected between the injection moulding apparatus and the sprue by plasticizing charging barrel；The injection mold also includes controller and temperature passes Sensor, the temperature sensor are arranged near the sprue；The controller is respectively connecting to the injection moulding apparatus, temperature Sensor and vavuum pump, the controller are used to set and adjust the temperature and pressure that feed liquid is plastified in the injection moulding apparatus, with And the suction of the control vavuum pump；The injection mold is Cast Iron Die made of spheroidal graphite cast-iron, the spheroidal graphite Cast iron contain 3.6~3.9wt% C, 3.0~4.2wt% Si, 0.9~1.5wt% Mn, 0.02~0.08wt% Mo, 0.65~0.85wt% Cu, 0.05~0.15wt% Ti, 0.01~0.05wt% Zr, 0.06~0.10wt% Ba, Below 0.10wt% P, below 0.05wt% S, and the Fe of surplus and inevitable impurity；The system of the spheroidal graphite cast-iron Preparation Method is as follows：The melting under 1550~1580 DEG C of temperature conditionss, nodulizer is placed on ladle bottom, makes molten iron to flowing into Row spheroidising, the time of spheroidising is 3~5 minutes；The cast iron obtained after cast 750-850 DEG C of stove inside holding 2.0~ 3.0 hours, then it is furnace-cooled to 650~750 DEG C and is incubated 3.0~5.0 hours, be air-cooled to room temperature.
2. automobile storage box injection mold according to claim 1, it is characterised in that：The Cast Iron Die is true Plasma treatment is carried out in empty room, the temperature of the plasma treatment is 400~450 DEG C, and plasma power is 2.0~3.0kW, H2S flows are 20~25sccm, N2Flow is 50~100sccm, and processing time is 25~30min, is formed after surface modification treatment 80~100 μm of hardened layer.
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Publication number Priority date Publication date Assignee Title
CN113492502A (en) * 2020-03-19 2021-10-12 佛山市顺德区协达昌塑料有限公司 Intelligent sound equipment plastic product mold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06179947A (en) * 1992-12-15 1994-06-28 Kawasaki Steel Corp Composite roll made by centrifugal casting
CN104651569A (en) * 2015-03-02 2015-05-27 江西省科学院应用物理研究所 Surface modification method of cast iron
CN105401059A (en) * 2015-11-12 2016-03-16 丹阳恒庆复合材料科技有限公司 Manufacturing technology and device for improved forged steel roller neck high nickel chrome molybdenum alloy cast composite roller

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4799006B2 (en) * 2004-03-01 2011-10-19 株式会社小松製作所 Fe-based seal sliding member and manufacturing method thereof
CN201271997Y (en) * 2008-12-16 2009-07-15 宁波远东制模有限公司 Vacuum auxiliary injection mold
CN104164611A (en) * 2014-07-30 2014-11-26 宁国市冠宇模具有限公司 Heat-resistant nodular cast iron injection mold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06179947A (en) * 1992-12-15 1994-06-28 Kawasaki Steel Corp Composite roll made by centrifugal casting
CN104651569A (en) * 2015-03-02 2015-05-27 江西省科学院应用物理研究所 Surface modification method of cast iron
CN105401059A (en) * 2015-11-12 2016-03-16 丹阳恒庆复合材料科技有限公司 Manufacturing technology and device for improved forged steel roller neck high nickel chrome molybdenum alloy cast composite roller

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Denomination of invention: Injection mold for storage boxes of automobiles

Effective date of registration: 20181108

Granted publication date: 20180130

Pledgee: Industrial Commercial Bank of China Ltd Taizhou Huangyan branch

Pledgor: ZHEJIANG TAIZHOU MEIDUO MOULD CO., LTD.

Registration number: 2018330000372