Fan Mould protective and maintenance-SINOMOULD

Commonly mould steel choice:45#,40cr,P20 and 2738,2316,718,718H, NAK80, S136, etc.General fan mould choose 718 and 2316 material as the core and cavity material.so that we can make the product surface to achieve a certain degree of finish, and receive long time mould life.If you want to have more guarantee can choose NAK80 to improve mould quality.We would suggest customers according to the product positioning and determine die steel!
 

Mold maintenance is more important than the mold repair.Too much times mold repair, the more shortage for the mould life.And the better the mold maintenance, its service life is longer.There are three main points for the Mold maintenance:1.Mould daily maintenance: all kinds of moving parts such as thimble,line,guide pin,guide sleeve and so on.After each time mould production,should pay big attention to clean up the mold of residual plastic parts,other impurities,and oiling reset.

Sinomould do much attection on the fan moulds research and production.We are the professional fanmould manufacture.Welcome to make detail enquiry for technical enquiry.Sino mould will do our best provide you our best service and great moulds.

Written by Tina

serve@sinomould.com

Key point for Fan mould manufacture-SINOMOULD

Fan mould is the critical mould,has big technical skill difficulty.The critical point of Fan mould is the turning pages injection gate choice.It must ensure the mould cavity plastic filling pressure and injection distance banlance and same.At the same time,we also need consider the difference position temperature whether will affect the plastic melting degree.If plastic melt uneven,the wind would be different, the gravity of the leaf rotational noisy sound.

Sino mould use the HIPS blade mould and AC fan mold injection, on average, and the same cooling effect.Professional in making various fan mould and good at solve different fan problem.

A set of high quality mold, the structure design is the precondition of mould manufacturing,to all aspects of the mold structure and product structure analysis(including mold draft,the epitome of product surface,gating system design,the design of the exhaust system,cooling system design,etc.) These are the most important and most easily out problems in mould structure design of trial and error,our preparations with rigorous attitude for real mould production.

Sino mould in order to offer customer the best fan mould,do much effort in the mould design research.Each year Sino mould pay much money for the mould design department research and study.we have very strong design team,provide our customer best technical service and mould design idea.If you have any mould request,welcome to Sino group.

Written by Tina

serve@sinomould.com

Medical test tube mould high quality supplier-Sinomould

With many years’ research and development,Sino mould now are very professional in making all kinds of medical parts mould manufacture.Your reliable cooperator for plastic medical parts mould supplier.

Today let us show your our test tube mould production detail:
Test tube size: 0.5 ~ 60 ml
Test tube mould cavity number: 8 ~ 64 cavity
The mold core steel material: Swedish Assab company produces the Stavax S420, it is stainless steel and tempered steel material
Gate type: hot runner point gate (Anole hot runner injection system at www.anole-hot-runner.com
Plastic products: PET/PS/PP
Test tube cavity core polishing: mirror polishing processing
Test tube mould structure, mould core adopts self-locking structure, mould in the same components are interchangeable.
Test tube mould life: more than three million.

Sino mould introduced the domestic and foreign many sets of international advanced level of equipment, including a complete CAD/CAE/CAM system, computer 3 D measuring instrument,the CNC control electro discharge machining center, etc.New production,sales,technology ranked among the top counterparts.Company according to user requirements,design and manufacture all kinds of different requirements of mold products.

Sino mould made dozens of sets of various medical tube mould, most exports to Tunisia and Saudi Arabia, Italy, Mexico, Brazil...If you need efficient high-quality tube mould, please feel free to contact us.

Written by Tina

Mail:serve@sinomould.com

The reason analysis for slow injection molding

(1)Long cooling time for plastic temperature,mold temperature,temperature control
(2)Long melt time.Back pressure shall be reduced,try to use recycle material to prevent overhead,need enough cooling of material feeding period feeding period of cooling.
(3)Slow moving action.Make it appropriate to speed up the adjustment through the oil and circuit.
(4)Mould design request easy to demoulding.make to a fully automatic operation.
(5)Products wall thickness cause the cooling time too long.
(6)Nozzle salivate,interfere with the normal production.Should adopt shut-off nozzle,or reduce the temperature of the nozzle.
(7)Cylinder heating quantity shortage.Should change with the plasticizing capacity big machines or strengthen the preheating of material.

Sino mould professional in various mould molding solution reaserch,And each moulds we will make to moderate mould stripping way and best cooling system.All the moulds we make according to above moulds items.

Written by Tina
whatsapp:008615167663781
serve@sinomould.com

Small injection gate injection molding advantage

Gate is the a critical period of material circulation in the gating system.Apart from the mainstream way type pouring outlets,most of the gate are minimum sectional area of the gating system, only 3%-9% of bypass road cross-sectional area.

Using small gate appear the forming pressure drop caused by increasing the flow resistance,can be compensate within a certain range of increase of injection pressure method.

Using small gate in injection molding,has the following advantages
1.There is a big pressure difference at the small gate of front and back side,can effectively increase the shear rate of melt and generate larger shear heat,leading to the melt apparent viscosity decreased,liquidity enhancement,is advantageous to the mold filling.Like.PP,PS,PE...material.
2.If small gate,may through the test mould or repairing the mould adjust the volume of small gate,the gate of the melt in the process of the pressure maintaining frozen in time,so as to properly control the feeding time, avoid warping deformation products.
3.Can wait the small gate freeze products,all as long as the external solidified layer has enough strength and stiffness can will product release,no need to stay until internal curing.so as to shorten the molding cycle,improve production efficiency.
4.The small gate in the multimode cavity can balance the feed speed of each cavity for gating system balance.
5.Small gate can have small tip water mark.

Forming large products,also should pay attention to the gate area corresponding amplification,sometimes need to amplify gate section height to near products,one of the biggest thickness can improve the liquidity of the melt.

Written by Tina

Mail:service1003@anole-hot-runner.com

What is called water assisted injection mould?

Water injection is similar of gas-assisted injection molding process of two steps: first step, cavity is completely melt filling;In the second step,inject water form the empty cavity.

Water injection mould generally more expensive than the gas-assisted mold, the reason is that different steel used in the manufacture of moulds.Water used in the injection mould steel higher quality (strong nickel plating layer or titanium nitride coating for the protection of water injection mold from corrosion is essential).

Points for water assisted mould making:
1.The design of the water injection equipment must satisfy the conditions of close to gas-assisted injection molding.
2.Drainage compared with exclusion of nitrogen is more complex, needs to be done by gravity and ventilation with compressed gas "discharge" of plastic parts.
3.In order to prevent corrosion, water must not be in contact with the mould surface.
4.Water injection to high water injection capacity to ensure uniform wall thickness distribution and high surface quality.

Written by Tina
skype:anole-01
Mail:serve@sinomould.com

Difference between gas assisted and water assisted injection mold

Gas-assisted injection molding technology is used in the production of rod type components to reduce part weight and cycle time.As a very mature technology has been applied in plastic processing industry many years.And the technology is one of the most important application field of thick wall plastic parts production.Gas-assisted injection molding can also help greatly reduce or eliminate flat piece area of the wall thickness,deformation and shrinkage mark,so as to improve the quality of plastic parts.

Water assisted injection is water instead of nitrogen,will make the mold cavity surface quality better.Water of the thermal conductivity is about 40 times that of the nitrogen gas,heat capacity is four times that of nitrogen.In addition to the ordinary mold cooling,water injection will make plastic parts internal cooling, compared with gas,cooling time reduced 70%,ejection temperature reach to required much faster.At the same time,water is a kind of incompressible medium and low price.In addition to processing more parts,water injection to form more uniform wall thickness,reduces the residual wall thickness.

They are without any different in the machine use,but differ on the mold design and process control.Water assisted injection mould generally more expensive than the gas-assisted mold,the reason is that different steel used in the manufacture of moulds.Water injection molding steel material hardness more hard than gas-assisted injection mould.
Written by Tina
Skype:anole-01

Mail:serve@sinomould.com