01 / 10 · Mold split before tooling
Sand Casting Parting Lines Around Flanges and Clearances
When sourcing a sand-cast flanged housing, agree the mold split before tooling places a joint beside a gasket face or tight assembly clearance. Relia reviews the parting route, local cleanup and finishing stock against your mating envelope.
Relia reviews the mold joint, local finishing and machining stock with your flange sections. Protected surfaces and clearance envelopes stay visible in the tooling decision.
Review your flange and mold split
02 / 10 · Factory design review
The Mold Split Must Respect the Assembly
Relia connects the proposed parting arrangement to the delivered component, including surfaces that remain cast and those finished by machining.
Show nearby parts and protected contacts.
Mark its route around the component.
Agree cleanup and machining boundaries.

03 / 10 · Assembly definition
Gasket Faces and Clearance Envelopes
Identify the sealing contact, bolt access and the space required by neighboring parts. Mark the region that must remain available after casting cleanup and machining.
Include the final supplied condition, especially where a finish or coating affects the interface. A general external dimension does not define every restricted clearance.
Review pump-housing flange and bore interfaces04 / 10 · Mold arrangement
A Proposed Parting Line on the Drawing
The parting line is the meeting region of mold sections. Its location affects pattern withdrawal, casting shape and the area requiring joint cleanup.
Schematic arrangement only; the actual split follows the agreed component proposal.
Review the complete line around the component
Show the parting route through flanges, lugs and recesses. Relate it to each protected interface rather than approving it from one outside view.
05 / 10 · Joint finishing
Flash and Cleanup at the Mold Joint
Define the required local condition after joint cleanup. Separate removable flash from a positional step or another geometric condition that needs its own acceptance discussion.
Specify cleanup boundaries where access is restricted or a nearby edge must remain protected. Avoid treating aggressive material removal as the default answer to every joint condition.

06 / 10 · Finished flange
Stock Reserved for Finished Flange Faces
The casting blank
Retain the local material needed for the agreed finishing operation.
The final contact
Define the finished face, edge and interface requirements on the drawing.
Connect the stock to the machining references. The flange should reach its required condition while preserving the surrounding wall and clearance envelope.
Review the sand-casting route for your component07 / 10 · Sample checks
Sample Acceptance in Restricted Areas
Mark the joint region and protected contact.
Agree dimensional, surface or access-related evidence.
Identify the sample, drawing revision and supplied condition.
Relia can provide agreed key dimensional records, with characteristics and sampling frequency defined per order.

08 / 10 · Component references
Flanged Housing and Mounting References
Use the housing, collar or mounting form to begin the discussion. Your drawing defines the actual material, parting proposal and finished interfaces.
View flanged housing and open-frame enquiriesView flanged connectors and iron mounting forms09 / 10 · Tooling release
Approve Cleanup Boundaries Before Tooling
Before tooling
Agree the parting route, protected envelope and finishing proposal.
Before batch production
Approve sample evidence against the final interface requirements.
Keep any later change to the mold split or local geometry connected to the approved component revision.
10 / 10 · Start the parting review
Share Flange Sections and Assembly Clearances
Send Relia your drawing, material and quantities. Mark gasket faces, tight clearances and any proposed mold split or cleanup region that needs review.
Email the flange sections- [email protected]
- Phone
- +86 185 6176 2631
- +1 404 203 0971
- Company and address
- Relia Casting
No. 96 Shuyuan Road
Qingdao, Shandong, China