Trial-Run Molding

A mould trialis a process by which a new mould is optimised in order to produce the desired products as efficiently as possible. This makes it one of the most important aspects of injection moulding.

DETAIL OF TRIAL MOLDING

Trial Molding Process

Set barrel temperature according to recommendations from the material supplier. Middle of recommended in front and lower end of recommended in back, if don’t have date sheet, reference from mold flow report. Record actual melt temp with air shot method. If the customer is to attend the trial, the material data sheet should be printed and present at the machine.

Set mould temperature to the middle of recommended temp span, if don’t have date sheet, reference from mold flow report. Also, make sure the actual mould temp is right during production.

Set clamping force according to Moldflow report, or max clamp of customer specified machine.

Set holding pressure to 0 at first.

Increase the shot size gradually until parts are ~90% full. Check cavity variation. If more than 7% cavity variation, write down in page and mark as the issue needs to improve

Increase the shot size until parts are 100% full, parts can be sink but not short. If parts have flash, burns or air traps, write down in paper comment as the issue needs to fix

Set shot size to 97% full, should be done including an estimated holding time.

Set holding pressure to ½ the actual injection pressure.

Runoff samples and mark them trial number and date, this is very important information for us to find which samples are from the previous trial time, quantity according to customer requirements if parts are ok. 1 balance shot and 2-3 runners should always be sent together with the samples.

As a precision injection molding manufacturer, we will do our best to meet all the needs of clients.

Other supplier products

	CNC High-Speed Milling Mold Parts	Precision OEM CNC milling parts Completed by CNC milling and forming grinding Accuracy of our custom CNCmilling metal partscan be achieved wi...
	Mold Assembly	When designing plastic injection moulded parts to be used in conjunction with other parts, the assembly must be considered. There are several assem...
	PRECISION MOLD PARTS/SPARE PARTS	This shape of a mold is predetermined by a mould, a block that has been hollowed out. Aluminum, steel, alloys, and copper are the most common mater...
	Core And Cavity Mold Parts	Core And CavityMold Parts Core and cavity designare used in the injection molding process, where the concave part of the mold is the cavity and th...
	Jigs & Fixture Parts	There are a wide variety of mechanical components. Our Fixture Partsare manufactured to precise specifications and include springs, bearings, actua...

供应产品

Same products

	JY-160S2 Standard Plastic Injection Machine	卖方: Dongguan Jieyang Machinery Co., Ltd	Straight screw ejected assembly. Two(three)-phase temperature, ejected speed, backing pressure a...
	Silicone Rubber Injection Molding	卖方: Packson Mold Co.,Ltd	Packson's state-of-the-art facilities consist of a 1000㎡ certified clean room, which is equipped ...
	Prototype Injection Mould	卖方: Packson Mold Co.,Ltd	Packsonmold is a company that provides high-quality prototype services, including 3D printing, CN...
	Precision Injection Molding	卖方: Packson Mold Co.,Ltd	At Packson, we specialize in manufacturing custom precision mold partsand machined parts that mee...
	Overmolding Injection Molding	卖方: Packson Mold Co.,Ltd	Overmoldingmold is made of overmolding injection molding processwhich is a special injection mold...