Home > Injection Molding Solution >

OEM Black Spot Injection Moulding Problems And Solutions

Product Categories

Injection Molded Parts [44]
Plastic Molded Parts [35]
Precision Injection Molding [54]
Precision Hardware Parts [28]
Die Casting Parts [40]
Die Casting Mold [11]
Silicone Rubber Parts [15]
Silicone Injection Mold [1]
Telecommunication Parts [16]
Plastic Injection Molding Medical Parts [14]
Household Appliance Parts [17]
Electronic Spare Parts [34]
Molding Car Parts [14]
Injection Molding Solution [17]

Sun On Plastic Moulding Limited

Contact Now

OEM Black Spot Injection Moulding Problems And Solutions

MOQ : 100pcs

Price : Negotiable

Payment Terms : T/T

Supply Ability : More than 1 million

Delivery Time : 30day

Packaging Details : As the customer required

Place of Origin : CHINA

Brand Name : OEM

Certification : ISO

Emphasize : Cause And Countermeasure Analysis Of Product Black Spot

Contact Now

Black Spot

Dark spots include black spots and black stripes. Black spots are when the product has the correct color fading but occasionally black or dark spots are visible; Black stripes are strips of different colors. This is usually due to material decomposition. Screw cleaning is not clean. It's caused by impurities in the material.

	Cause	Cuntermeasure
Forming condition	1. The material of injection molding machine is not clean 2. High temperature of the material will cause material degradation 3. Excessive injection pressure will increase the shear and decompose the material 4. Excessive shear caused by excessive injection molding speed 5. The thermal pause time of materials is too long	1. Clean the material and screw with cleaning machine material, pull out screw when necessary to clean 2. Reduce the forming temperature 3. Reduce injection pressure and screw speed 4. Reduce injection speed 5. Reduce buffer margin and replace small machine so that the delay time is less than the retention time required by the material
Die	1. Impurities are produced in the nozzle or hot runner 2. There is oil in the mold 3. Hot runner is not cleaned	1. Clean the nozzle or hot runner 2. Clean the mold 3. Clean hot runner
Material	The raw material itself has impurities and black spots	Change of material
Other	The hopper is not cleaned	Re-clean the hopper

Product Tags:

Black Spot injection moulding problems and solutions

Black Spot Injection Moulding solutions

OEM injection moulding problems and solutions

Quality OEM Black Spot Injection Moulding Problems And Solutions for sale

OEM Black Spot Injection Moulding Problems And Solutions Images

Inquiry Cart 0

Send your message to this supplier


*From:	Your email address is incorrect!
*To:	Sun On Plastic Moulding Limited
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!