CN113895057A - Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process - Google Patents

Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process Download PDF

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Publication number
CN113895057A
CN113895057A CN202111032384.1A CN202111032384A CN113895057A CN 113895057 A CN113895057 A CN 113895057A CN 202111032384 A CN202111032384 A CN 202111032384A CN 113895057 A CN113895057 A CN 113895057A
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CN
China
Prior art keywords
plastic part
mold
treatment
mould
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111032384.1A
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Chinese (zh)
Inventor
姚丽娜
胡明源
孟智杰
李平
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.)
Jiangsu Baoshun Plastic Co ltd
Original Assignee
Jiangsu Baoshun Plastic Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Baoshun Plastic Co ltd filed Critical Jiangsu Baoshun Plastic Co ltd
Priority to CN202111032384.1A priority Critical patent/CN113895057A/en
Publication of CN113895057A publication Critical patent/CN113895057A/en
Pending legal-status Critical Current

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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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C37/0032—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C2037/0042—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied in solid sheet form, e.g. as meltable sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0026—Flame proofing or flame retarding agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a method for manufacturing a plastic part by a CMC process, which sequentially comprises the following steps: the method comprises the steps of raw material treatment, filler preparation, mold surface treatment, filler laying, mold injection molding, shaping and post-treatment. According to the manufacturing method of the CMC process plastic part, fillers such as glass fiber, mineral filler powder, a flame retardant and an antioxidant are added, the glass fiber can enable the plastic part to have good tensile strength and bending modulus and also has the advantages of impact strength and the like, the mineral filler powder is used for increasing the surface hardness and the toughness of the plastic part and also can improve the thermal deformation temperature of the plastic part, the flame retardant is used for preventing the plastic part from catching fire so as to prevent the plastic part from catching fire and further prevent the plastic part from catching fire, so that the fire hazard is caused to the life safety of workers, and the antioxidant can enable the plastic part to have an antioxidant function so as to be more durable, so that the plastic part is prevented from being frequently replaced due to weak antioxidant capacity, and the working efficiency is reduced.

Description

Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process
Technical Field
The invention relates to the technical field of plastics, in particular to a method for manufacturing a plastic part by a CMC (carboxy methyl cellulose) process.
Background
The plastic is a high molecular compound which is polymerized by addition polymerization or polycondensation reaction by using monomers as raw materials, has moderate deformation resistance and is between fiber and rubber, and consists of synthetic resin, fillers, plasticizers, stabilizers, lubricants, pigments and other additives.
The main component of the plastic is resin. The resin means a polymer compound which has not been mixed with various additives. The term resin is originally named as lipids secreted by animals and plants, such as rosin, shellac, and the like. The resin accounts for about 40-100% of the total weight of the plastic. The basic properties of plastics are largely determined by the nature of the resin, but additives also play an important role. Some plastics consist essentially of synthetic resins, with no or little additives, such as plexiglas, polystyrene, etc.
However, the existing plastic parts have disadvantages in use, such as;
different working of plastics are easy to damage in use, are easily oxidized by substances such as air, thereby lead to the plastic part to damage, thereby need change it, just so troublesome to and the working of plastics is easy to burn, thereby the conflagration takes place easily, influences people's life safety.
We have therefore proposed a method of making a plastic part by CMC process in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a method for manufacturing a plastic part by a CMC (carboxy methyl cellulose) process, which aims to solve the problems that different plastic parts proposed by the background technology are easy to damage in use, are easy to be oxidized by substances such as air and the like, so that the plastic parts are damaged and need to be replaced, so that the plastic parts are troublesome, and the plastic parts are easy to burn, so that fire disasters are easy to occur and the life safety of people is influenced.
2. In order to achieve the purpose, the invention provides the following technical scheme: the manufacturing method of the CMC technology plastic part is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted.
(2) Preparation of the filling material: the filler is selected.
(3) Treating the surface of the die: and carrying out easy demoulding treatment on the surface of the mould.
(4) Laying a filler: and laying the filler.
(5) Injection molding of the mold: and carrying out mold injection on the resin which is injected and blended by the mold.
(6) Shaping: and (4) shaping the die, and then demolding the die.
(7) And (3) post-treatment: the mixture was cooled to room temperature, subjected to burr flashing treatment, and then packed.
Preferably, the heating temperature in the step (1) is controlled at 110-.
Preferably, the fillers in the step (2) are selected from glass fibers, mineral filler powder, flame retardants and antioxidants.
Preferably, the mold temperature in the step (5) is 60-80 ℃.
Preferably, the setting time of the step (6) is 5-25min, and the setting temperature is 5-20 ℃.
Preferably, the resin obtained in the step (1) is injected in the step (5), so that the injection molding inside the cavity of the mold reaches 90% -96%.
Preferably, the step (6) needs to cool the mold before demolding, and the temperature of the cooling water is 10-30 ℃ different from the mold temperature.
Preferably, the mold is cleaned after demolding in the step (6).
Preferably, the packaging in the step (7) needs to be disinfected.
Compared with the prior art, the invention has the beneficial effects that: a manufacturing method of the CMC process plastic piece;
by adding fillers such as glass fiber, mineral filler powder, flame retardant and antioxidant, the glass fiber can enable the plastic part to have good tensile strength and flexural modulus and also has the advantages of impact strength and the like, the mineral filler powder increases the surface hardness and the toughness of the plastic part and can also improve the thermal deformation temperature of the plastic part, the flame retardant prevents the plastic part from catching fire, so that the fire hazard is prevented, the life safety of workers and people is harmed, and the antioxidant can enable the plastic part to have the antioxidant function, so that the plastic part is more durable, the plastic part is prevented from being frequently replaced due to the weak antioxidant capacity, and the working efficiency is reduced.
The plastic part is required to be sterilized and disinfected before being packaged, so that the plastic part is safer, the plastic part produced by the method is high in toughness and durable, and can be partially or completely applique or partially or completely dermatoglyph-treated in the surface treatment of the mold, so that the plastic part is better in aesthetic property and is pleasant.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 110 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mold to enable the injection molding inside the mold cavity to reach 90%, then pressurizing the mold, stopping pressurizing when the gum at the inlet of the mold is found to be solidified, and thus performing the mold injection molding, wherein the mold temperature reaches 60 ℃.
(6) Shaping: the method comprises the steps of shaping a mold, wherein the shaping time of a plastic part is 5min, the shaping temperature of the plastic part is 5 ℃, after the shaping is finished, the mold needs to be cooled, the temperature difference between cooling water and the temperature of the mold is 10 ℃, then the mold is demolded, and the mold is cleaned after the demolding, so that the next use is facilitated.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
Example two
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 115 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mould to ensure that the injection molding inside the mould cavity reaches 91%, then pressurizing the mould, stopping pressurizing when the gum at the inlet of the mould is found to be solidified, and thus performing mould injection molding, wherein the temperature of the mould reaches 65 ℃.
(6) Shaping: the method comprises the steps of shaping a mold, wherein the shaping time of a plastic part is 5min, the shaping temperature of the plastic part is 5 ℃, after the shaping is finished, the mold needs to be cooled, the temperature difference between cooling water and the temperature of the mold is 10 ℃, then the mold is demolded, and the mold is cleaned after the demolding, so that the next use is facilitated.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
EXAMPLE III
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 120 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mould to ensure that the injection molding inside the mould cavity reaches 92%, then pressurizing the mould, stopping pressurizing when the gum at the inlet of the mould is found to be solidified, and thus performing mould injection molding, wherein the temperature of the mould reaches 65 ℃.
(6) Shaping: and (2) shaping the mould, wherein the shaping time of the plastic part is 10min, the shaping temperature is 10 ℃, after the shaping is finished, the mould needs to be cooled, the temperature difference between the cooling water and the mould temperature is 15 ℃, then the mould is demoulded, and the mould is cleaned after the demould, so that the next use is convenient.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
Example four
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 120 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mold to make the injection molding inside the mold cavity reach 93%, pressurizing the mold, stopping pressurizing when the gum at the inlet of the mold is solidified, and performing mold injection molding, wherein the mold temperature reaches 70 ℃.
(6) Shaping: and (2) shaping the mould, wherein the shaping time of the plastic part is 10min, the shaping temperature is 10 ℃, after the shaping is finished, the mould needs to be cooled, the temperature difference between the cooling water and the mould temperature is 15 ℃, then the mould is demoulded, and the mould is cleaned after the demould, so that the next use is convenient.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
EXAMPLE five
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 120 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mold to make the injection molding inside the mold cavity reach 94%, pressurizing the mold, stopping pressurizing when the gum at the inlet of the mold is solidified, and performing mold injection molding, wherein the mold temperature reaches 70 ℃.
(6) Shaping: and (3) shaping the mould, wherein the shaping time of the plastic part is 15min, the shaping temperature is 15 ℃, after the shaping is finished, the mould needs to be cooled, the temperature difference between the cooling water and the mould is 20 ℃, then the mould is demoulded, and the mould is cleaned after the demould, so that the next use is convenient.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
EXAMPLE six
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted at a temperature of 125 c.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mould to ensure that the injection molding inside the mould cavity reaches 95%, then pressurizing the mould, stopping pressurizing when the gum at the inlet of the mould is found to be solidified, and thus performing mould injection molding, wherein the temperature of the mould reaches 75 ℃.
(6) Shaping: and (3) shaping the mould, wherein the shaping time of the plastic part is 20min, the shaping temperature is 15 ℃, after the shaping is finished, the mould needs to be cooled, the temperature difference between the cooling water and the mould is 25 ℃, then the mould is demoulded, and the mould is cleaned after the demould, so that the plastic part is convenient to use next time.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
EXAMPLE seven
The invention provides a technical scheme that: a method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets were purchased in the market and then melted at a temperature of 30 ℃.
(2) Preparation of the filling material: the filler is selected from glass fiber, mineral filler powder, flame retardant and antioxidant.
(3) Treating the surface of the die: the surface of the mould is subjected to easy demoulding treatment, and can be subjected to partial or complete applique treatment or partial or complete dermatoglyph treatment.
(4) Laying a filler: glass fiber, mineral filling powder, a flame retardant and an antioxidant are laid inside the die, and the insert can be embedded in the die or adhered to the die.
(5) Injection molding of the mold: injecting the prepared resin into the mould to ensure that the injection molding inside the mould cavity reaches 96%, then pressurizing the mould, stopping pressurizing when the gum at the inlet of the mould is found to be solidified, and thus performing the injection molding of the mould, wherein the temperature of the mould reaches 80 ℃.
(6) Shaping: and (2) shaping the mold, wherein the shaping time of the plastic part is 5-25min, the shaping temperature is 20 ℃, after the shaping is finished, the mold needs to be cooled, the temperature difference between the cooling water and the mold temperature is 30 ℃, then the mold is demolded, and the mold is cleaned after the demolding, so that the next use is facilitated.
(7) And (3) post-treatment: cooling to room temperature, performing burr flashing treatment, sterilizing, and packaging.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, modifications, equivalents, improvements and the like can be made therein without departing from the spirit and scope of the invention.

Claims (9)

1. A method for manufacturing a plastic part by a CMC process is characterized in that: the method sequentially comprises the following steps:
(1) treatment of raw materials: synthetic resin pellets are purchased in the market and then melted.
(2) Preparation of the filling material: the filler is selected.
(3) Treating the surface of the die: and carrying out easy demoulding treatment on the surface of the mould.
(4) Laying a filler: and laying the filler.
(5) Injection molding of the mold: and carrying out mold injection on the resin which is injected and blended by the mold.
(6) Shaping: and (4) shaping the die, and then demolding the die.
(7) And (3) post-treatment: the mixture was cooled to room temperature, subjected to burr flashing treatment, and then packed.
2. The method of making a CMC process plastic part as claimed in claim 1, wherein: the heating temperature in the step (1) is controlled at 110-130 ℃.
3. The method of making a CMC process plastic part as claimed in claim 1, wherein: the fillers in the step (2) are selected from glass fibers, mineral filler powder, flame retardants and antioxidants.
4. The method of making a CMC process plastic part as claimed in claim 1, wherein: the temperature of the mould in the step (5) is 60-80 ℃.
5. The method of making a CMC process plastic part as claimed in claim 1, wherein: the setting time of the step (6) is 5-25min, and the setting temperature is 5-20 ℃.
6. The method of making a CMC process plastic part as claimed in claim 1, wherein: and (3) injecting the resin obtained in the step (1) in the step (5) to enable the injection molding inside the mold cavity to reach 90-96%.
7. The method of making a CMC process plastic part as claimed in claim 1, wherein: and (3) before demolding, the mold is cooled in the step (6), and the temperature difference between the cooling water and the mold is 10-30 ℃.
8. The method of making a CMC process plastic part as claimed in claim 1, wherein: and (4) cleaning the die after demolding in the step (6).
9. The method of making a CMC process plastic part as claimed in claim 1, wherein: and (3) sterilizing the packaged food in the step (7) before packaging.
CN202111032384.1A 2021-09-03 2021-09-03 Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process Pending CN113895057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111032384.1A CN113895057A (en) 2021-09-03 2021-09-03 Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111032384.1A CN113895057A (en) 2021-09-03 2021-09-03 Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process

Publications (1)

Publication Number Publication Date
CN113895057A true CN113895057A (en) 2022-01-07

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Country Status (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103819865A (en) * 2014-03-10 2014-05-28 南京工业大学 Environment-friendly flame-retardant modified HIPS (high impact polystyrene) liquid crystal television housing and preparation method thereof
CN107972223A (en) * 2017-12-15 2018-05-01 滁州市贝蒂玛童车有限公司 A kind of high-strength super wilful production of plastics parts technique
CN110328804A (en) * 2019-07-08 2019-10-15 安顺智森电子科技有限公司 A kind of Shooting Technique of Bluetooth audio device shell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103819865A (en) * 2014-03-10 2014-05-28 南京工业大学 Environment-friendly flame-retardant modified HIPS (high impact polystyrene) liquid crystal television housing and preparation method thereof
CN107972223A (en) * 2017-12-15 2018-05-01 滁州市贝蒂玛童车有限公司 A kind of high-strength super wilful production of plastics parts technique
CN110328804A (en) * 2019-07-08 2019-10-15 安顺智森电子科技有限公司 A kind of Shooting Technique of Bluetooth audio device shell

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Application publication date: 20220107